Introduction and classification, anatomy of skin and factors affecting absorption, Formulation ,preparation, packaging, labeling and storage of ointments, Formulation, preparation, packaging, labeling and storage of jellies, creams, pastes.
It is an electrochemical method of analysis used for the determination or measurement of the electrical conductance of an electrolyte solution by means of a conductometer.
Electric conductivity of an electrolyte solution depends on :
Type of ions (cations, anions, singly or doubly charged
Concentration of ions
Temperature
Mobility of ions
The main principle involved in this method is that the movement of the ions creates the electrical conductivity. The movement of the ions is mainly depended on the concentration of the ions.
The electric conductance in accordance with ohms law which states that the strength of current (i) passing through conductor is directly proportional to potential difference & inversely to resistance.
i =V/R
Hi! I made these labels for study purpose. These are not for marketing or something else. i will upload more labels in future.
if you have any trouble downloading these labels. contact me on my email address. Thankyou.
B. Pharm. (Honours) Part-III Practical, Analytical Pharmacy,MANIKImran Nur Manik
a) Assay of acetyl salicylic acid in aspirin tablets.
b) Assay of sodium salicylate tablets
c) Determination of potency of penicillin tablets.
d) Non- aqueous assay of phenobarbitone tablets.
e) Determination of calcium in solid & liquid dosage form by complexometric titration.
f) Assay of promethazine hydrochloride.
g) Assay of methamphetamine hydrochloride
h) Assay of aluminum hydroxide gel.
i) Assay of milk of magnesia
j) Assay of magnesium and aluminum from antacid preparation.
k) Determination of iodine value, saponification value, acid value and R.M. value of oils and fats
Introduction and classification, anatomy of skin and factors affecting absorption, Formulation ,preparation, packaging, labeling and storage of ointments, Formulation, preparation, packaging, labeling and storage of jellies, creams, pastes.
It is an electrochemical method of analysis used for the determination or measurement of the electrical conductance of an electrolyte solution by means of a conductometer.
Electric conductivity of an electrolyte solution depends on :
Type of ions (cations, anions, singly or doubly charged
Concentration of ions
Temperature
Mobility of ions
The main principle involved in this method is that the movement of the ions creates the electrical conductivity. The movement of the ions is mainly depended on the concentration of the ions.
The electric conductance in accordance with ohms law which states that the strength of current (i) passing through conductor is directly proportional to potential difference & inversely to resistance.
i =V/R
Hi! I made these labels for study purpose. These are not for marketing or something else. i will upload more labels in future.
if you have any trouble downloading these labels. contact me on my email address. Thankyou.
B. Pharm. (Honours) Part-III Practical, Analytical Pharmacy,MANIKImran Nur Manik
a) Assay of acetyl salicylic acid in aspirin tablets.
b) Assay of sodium salicylate tablets
c) Determination of potency of penicillin tablets.
d) Non- aqueous assay of phenobarbitone tablets.
e) Determination of calcium in solid & liquid dosage form by complexometric titration.
f) Assay of promethazine hydrochloride.
g) Assay of methamphetamine hydrochloride
h) Assay of aluminum hydroxide gel.
i) Assay of milk of magnesia
j) Assay of magnesium and aluminum from antacid preparation.
k) Determination of iodine value, saponification value, acid value and R.M. value of oils and fats
a) Assay of acetyl salicylic acid in aspirin tablets.
b) Assay of sodium salicylate tablets
c) Determination of potency of penicillin tablets.
d) Non- aqueous assay of phenobarbitone tablets.
e) Determination of calcium in solid & liquid dosage form by complexometric titration.
f) Assay of promethazine hydrochloride.
g) Assay of methamphetamine hydrochloride
h) Assay of aluminum hydroxide gel.
i) Assay of milk of magnesia
j) Assay of magnesium and aluminum from antacid preparation.
k) Determination of iodine value, saponification value, acid value and R.M. value of oils and fats.
Chemistry Lab Report on standardization of acid and bases. Karanvir Sidhu
I hope it might be helpful to you.
Email me on sidhu.s.karanvir@gmail.com to see more work.
Follow me at Linkedln
https://www.linkedin.com/in/karanvir-sidhu-b6995864/
Standardization of Acids and bases.
2. Determination of pKa and pKb values
3. Preparation of solutions of different pH & buffer capacities.
4. Determination of phase diagram of binary systems.
Determination of distribution coefficients.
6. Determination of molecular weight by Victor Meyer’s Method.
7. Determination of heats of solutions by measuring solubility as a function of temperature
(Van’t Hoff equation.)
A. Qualitative analysis of metal ions and acid radicals:
Na+, K+, Ca+2, Ag+, Mn+4, Fe+2, Fe+3, Co+2, Mg+2, Al+3, Cu+2 and acid radicals CO3,
halides, Citrate
SO4-2, NO3-, SO3-2, etc.
B. Identification of inorganic drugs in their formulation:
1. Ca+2, from supplied preparations
2. Fe+2 from supplied preparations
3. Al+3 from supplied preparations
4. Mg+2 from supplied preparations
5. K+ from supplied reparations
6. Na+ from supplied preparations
C. Conversion of different water insoluble or sparingly soluble drugs into water soluble
forms:
1. Na/ K – salicylate from salicylic acid
2. Na/ K – benzoate from benzoic acid
3. Na/ K – citrate from citric acid
Plants in complimentary and traditional systems of medicine MANIKanikImran Nur Manik
Plants in complimentary and traditional systems of medicine: Introduction-different types of
alternative systems of treatments (e.g. Ayurvedic, Unani and Homeopathic medicine). Contribution
of traditional drugs to modern medicines. Details of some common indigenous traditional drugs:
Punarnava, Vashaka, Anantamul, Arjuna, Chirata, Picrorhiga, Kalomegh, Amla, Asoka, Bahera,
Haritaki, Tulsi, Neem, Betel nut, Joan, Karela, Shajna, Carrot, Bael, Garlic, Jam and Madar.
Crude drugs: A general view of their origin, distributions, cultivation, collection, drying and
storage, commerce and quality control.
a) Classification of drugs.
b) Preparation of drugs for commercial market
c) Evaluation of crude drugs.
d) Drug adulteration.
Carbohydrate and related compounds: Sugars and sugar containing drugs. Sucrose,
dextrose, glucose, fructose etc. Polysaccharides and polysaccharide containing drugs,
Starches, dextrins etc. Gums and mucilages, tragacanth, acacia, sterculia, sodium
alginate, agar and cellulose.
Volatile oils and related terpenoids-Methods of obtaining volatile oils,
chemistry, their medicinal and commercial uses, biosynthesis of some important
volatile oils used as drugs.
Knee anatomy and clinical tests 2024.pdfvimalpl1234
This includes all relevant anatomy and clinical tests compiled from standard textbooks, Campbell,netter etc..It is comprehensive and best suited for orthopaedicians and orthopaedic residents.
Report Back from SGO 2024: What’s the Latest in Cervical Cancer?bkling
Are you curious about what’s new in cervical cancer research or unsure what the findings mean? Join Dr. Emily Ko, a gynecologic oncologist at Penn Medicine, to learn about the latest updates from the Society of Gynecologic Oncology (SGO) 2024 Annual Meeting on Women’s Cancer. Dr. Ko will discuss what the research presented at the conference means for you and answer your questions about the new developments.
Lung Cancer: Artificial Intelligence, Synergetics, Complex System Analysis, S...Oleg Kshivets
RESULTS: Overall life span (LS) was 2252.1±1742.5 days and cumulative 5-year survival (5YS) reached 73.2%, 10 years – 64.8%, 20 years – 42.5%. 513 LCP lived more than 5 years (LS=3124.6±1525.6 days), 148 LCP – more than 10 years (LS=5054.4±1504.1 days).199 LCP died because of LC (LS=562.7±374.5 days). 5YS of LCP after bi/lobectomies was significantly superior in comparison with LCP after pneumonectomies (78.1% vs.63.7%, P=0.00001 by log-rank test). AT significantly improved 5YS (66.3% vs. 34.8%) (P=0.00000 by log-rank test) only for LCP with N1-2. Cox modeling displayed that 5YS of LCP significantly depended on: phase transition (PT) early-invasive LC in terms of synergetics, PT N0—N12, cell ratio factors (ratio between cancer cells- CC and blood cells subpopulations), G1-3, histology, glucose, AT, blood cell circuit, prothrombin index, heparin tolerance, recalcification time (P=0.000-0.038). Neural networks, genetic algorithm selection and bootstrap simulation revealed relationships between 5YS and PT early-invasive LC (rank=1), PT N0—N12 (rank=2), thrombocytes/CC (3), erythrocytes/CC (4), eosinophils/CC (5), healthy cells/CC (6), lymphocytes/CC (7), segmented neutrophils/CC (8), stick neutrophils/CC (9), monocytes/CC (10); leucocytes/CC (11). Correct prediction of 5YS was 100% by neural networks computing (area under ROC curve=1.0; error=0.0).
CONCLUSIONS: 5YS of LCP after radical procedures significantly depended on: 1) PT early-invasive cancer; 2) PT N0--N12; 3) cell ratio factors; 4) blood cell circuit; 5) biochemical factors; 6) hemostasis system; 7) AT; 8) LC characteristics; 9) LC cell dynamics; 10) surgery type: lobectomy/pneumonectomy; 11) anthropometric data. Optimal diagnosis and treatment strategies for LC are: 1) screening and early detection of LC; 2) availability of experienced thoracic surgeons because of complexity of radical procedures; 3) aggressive en block surgery and adequate lymph node dissection for completeness; 4) precise prediction; 5) adjuvant chemoimmunoradiotherapy for LCP with unfavorable prognosis.
263778731218 Abortion Clinic /Pills In Harare ,sisternakatoto
263778731218 Abortion Clinic /Pills In Harare ,ABORTION WOMEN’S CLINIC +27730423979 IN women clinic we believe that every woman should be able to make choices in her pregnancy. Our job is to provide compassionate care, safety,affordable and confidential services. That’s why we have won the trust from all generations of women all over the world. we use non surgical method(Abortion pills) to terminate…Dr.LISA +27730423979women Clinic is committed to providing the highest quality of obstetrical and gynecological care to women of all ages. Our dedicated staff aim to treat each patient and her health concerns with compassion and respect.Our dedicated group ABORTION WOMEN’S CLINIC +27730423979 IN women clinic we believe that every woman should be able to make choices in her pregnancy. Our job is to provide compassionate care, safety,affordable and confidential services. That’s why we have won the trust from all generations of women all over the world. we use non surgical method(Abortion pills) to terminate…Dr.LISA +27730423979women Clinic is committed to providing the highest quality of obstetrical and gynecological care to women of all ages. Our dedicated staff aim to treat each patient and her health concerns with compassion and respect.Our dedicated group of receptionists, nurses, and physicians have worked together as a teamof receptionists, nurses, and physicians have worked together as a team wwww.lisywomensclinic.co.za/
New Drug Discovery and Development .....NEHA GUPTA
The "New Drug Discovery and Development" process involves the identification, design, testing, and manufacturing of novel pharmaceutical compounds with the aim of introducing new and improved treatments for various medical conditions. This comprehensive endeavor encompasses various stages, including target identification, preclinical studies, clinical trials, regulatory approval, and post-market surveillance. It involves multidisciplinary collaboration among scientists, researchers, clinicians, regulatory experts, and pharmaceutical companies to bring innovative therapies to market and address unmet medical needs.
New Directions in Targeted Therapeutic Approaches for Older Adults With Mantl...i3 Health
i3 Health is pleased to make the speaker slides from this activity available for use as a non-accredited self-study or teaching resource.
This slide deck presented by Dr. Kami Maddocks, Professor-Clinical in the Division of Hematology and
Associate Division Director for Ambulatory Operations
The Ohio State University Comprehensive Cancer Center, will provide insight into new directions in targeted therapeutic approaches for older adults with mantle cell lymphoma.
STATEMENT OF NEED
Mantle cell lymphoma (MCL) is a rare, aggressive B-cell non-Hodgkin lymphoma (NHL) accounting for 5% to 7% of all lymphomas. Its prognosis ranges from indolent disease that does not require treatment for years to very aggressive disease, which is associated with poor survival (Silkenstedt et al, 2021). Typically, MCL is diagnosed at advanced stage and in older patients who cannot tolerate intensive therapy (NCCN, 2022). Although recent advances have slightly increased remission rates, recurrence and relapse remain very common, leading to a median overall survival between 3 and 6 years (LLS, 2021). Though there are several effective options, progress is still needed towards establishing an accepted frontline approach for MCL (Castellino et al, 2022). Treatment selection and management of MCL are complicated by the heterogeneity of prognosis, advanced age and comorbidities of patients, and lack of an established standard approach for treatment, making it vital that clinicians be familiar with the latest research and advances in this area. In this activity chaired by Michael Wang, MD, Professor in the Department of Lymphoma & Myeloma at MD Anderson Cancer Center, expert faculty will discuss prognostic factors informing treatment, the promising results of recent trials in new therapeutic approaches, and the implications of treatment resistance in therapeutic selection for MCL.
Target Audience
Hematology/oncology fellows, attending faculty, and other health care professionals involved in the treatment of patients with mantle cell lymphoma (MCL).
Learning Objectives
1.) Identify clinical and biological prognostic factors that can guide treatment decision making for older adults with MCL
2.) Evaluate emerging data on targeted therapeutic approaches for treatment-naive and relapsed/refractory MCL and their applicability to older adults
3.) Assess mechanisms of resistance to targeted therapies for MCL and their implications for treatment selection
Flu Vaccine Alert in Bangalore Karnatakaaddon Scans
As flu season approaches, health officials in Bangalore, Karnataka, are urging residents to get their flu vaccinations. The seasonal flu, while common, can lead to severe health complications, particularly for vulnerable populations such as young children, the elderly, and those with underlying health conditions.
Dr. Vidisha Kumari, a leading epidemiologist in Bangalore, emphasizes the importance of getting vaccinated. "The flu vaccine is our best defense against the influenza virus. It not only protects individuals but also helps prevent the spread of the virus in our communities," he says.
This year, the flu season is expected to coincide with a potential increase in other respiratory illnesses. The Karnataka Health Department has launched an awareness campaign highlighting the significance of flu vaccinations. They have set up multiple vaccination centers across Bangalore, making it convenient for residents to receive their shots.
To encourage widespread vaccination, the government is also collaborating with local schools, workplaces, and community centers to facilitate vaccination drives. Special attention is being given to ensuring that the vaccine is accessible to all, including marginalized communities who may have limited access to healthcare.
Residents are reminded that the flu vaccine is safe and effective. Common side effects are mild and may include soreness at the injection site, mild fever, or muscle aches. These side effects are generally short-lived and far less severe than the flu itself.
Healthcare providers are also stressing the importance of continuing COVID-19 precautions. Wearing masks, practicing good hand hygiene, and maintaining social distancing are still crucial, especially in crowded places.
Protect yourself and your loved ones by getting vaccinated. Together, we can help keep Bangalore healthy and safe this flu season. For more information on vaccination centers and schedules, residents can visit the Karnataka Health Department’s official website or follow their social media pages.
Stay informed, stay safe, and get your flu shot today!
Tom Selleck Health: A Comprehensive Look at the Iconic Actor’s Wellness Journeygreendigital
Tom Selleck, an enduring figure in Hollywood. has captivated audiences for decades with his rugged charm, iconic moustache. and memorable roles in television and film. From his breakout role as Thomas Magnum in Magnum P.I. to his current portrayal of Frank Reagan in Blue Bloods. Selleck's career has spanned over 50 years. But beyond his professional achievements. fans have often been curious about Tom Selleck Health. especially as he has aged in the public eye.
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Introduction
Many have been interested in Tom Selleck health. not only because of his enduring presence on screen but also because of the challenges. and lifestyle choices he has faced and made over the years. This article delves into the various aspects of Tom Selleck health. exploring his fitness regimen, diet, mental health. and the challenges he has encountered as he ages. We'll look at how he maintains his well-being. the health issues he has faced, and his approach to ageing .
Early Life and Career
Childhood and Athletic Beginnings
Tom Selleck was born on January 29, 1945, in Detroit, Michigan, and grew up in Sherman Oaks, California. From an early age, he was involved in sports, particularly basketball. which played a significant role in his physical development. His athletic pursuits continued into college. where he attended the University of Southern California (USC) on a basketball scholarship. This early involvement in sports laid a strong foundation for his physical health and disciplined lifestyle.
Transition to Acting
Selleck's transition from an athlete to an actor came with its physical demands. His first significant role in "Magnum P.I." required him to perform various stunts and maintain a fit appearance. This role, which he played from 1980 to 1988. necessitated a rigorous fitness routine to meet the show's demands. setting the stage for his long-term commitment to health and wellness.
Fitness Regimen
Workout Routine
Tom Selleck health and fitness regimen has evolved. adapting to his changing roles and age. During his "Magnum, P.I." days. Selleck's workouts were intense and focused on building and maintaining muscle mass. His routine included weightlifting, cardiovascular exercises. and specific training for the stunts he performed on the show.
Selleck adjusted his fitness routine as he aged to suit his body's needs. Today, his workouts focus on maintaining flexibility, strength, and cardiovascular health. He incorporates low-impact exercises such as swimming, walking, and light weightlifting. This balanced approach helps him stay fit without putting undue strain on his joints and muscles.
Importance of Flexibility and Mobility
In recent years, Selleck has emphasized the importance of flexibility and mobility in his fitness regimen. Understanding the natural decline in muscle mass and joint flexibility with age. he includes stretching and yoga in his routine. These practices help prevent injuries, improve posture, and maintain mobilit
Acute scrotum is a general term referring to an emergency condition affecting the contents or the wall of the scrotum.
There are a number of conditions that present acutely, predominantly with pain and/or swelling
A careful and detailed history and examination, and in some cases, investigations allow differentiation between these diagnoses. A prompt diagnosis is essential as the patient may require urgent surgical intervention
Testicular torsion refers to twisting of the spermatic cord, causing ischaemia of the testicle.
Testicular torsion results from inadequate fixation of the testis to the tunica vaginalis producing ischemia from reduced arterial inflow and venous outflow obstruction.
The prevalence of testicular torsion in adult patients hospitalized with acute scrotal pain is approximately 25 to 50 percent
Prix Galien International 2024 Forum ProgramLevi Shapiro
June 20, 2024, Prix Galien International and Jerusalem Ethics Forum in ROME. Detailed agenda including panels:
- ADVANCES IN CARDIOLOGY: A NEW PARADIGM IS COMING
- WOMEN’S HEALTH: FERTILITY PRESERVATION
- WHAT’S NEW IN THE TREATMENT OF INFECTIOUS,
ONCOLOGICAL AND INFLAMMATORY SKIN DISEASES?
- ARTIFICIAL INTELLIGENCE AND ETHICS
- GENE THERAPY
- BEYOND BORDERS: GLOBAL INITIATIVES FOR DEMOCRATIZING LIFE SCIENCE TECHNOLOGIES AND PROMOTING ACCESS TO HEALTHCARE
- ETHICAL CHALLENGES IN LIFE SCIENCES
- Prix Galien International Awards Ceremony
- Video recording of this lecture in English language: https://youtu.be/lK81BzxMqdo
- Video recording of this lecture in Arabic language: https://youtu.be/Ve4P0COk9OI
- Link to download the book free: https://nephrotube.blogspot.com/p/nephrotube-nephrology-books.html
- Link to NephroTube website: www.NephroTube.com
- Link to NephroTube social media accounts: https://nephrotube.blogspot.com/p/join-nephrotube-on-social-media.html
Hemodialysis: Chapter 3, Dialysis Water Unit - Dr.Gawad
Pharmaceutical analysis II (Practical) MANIK up
1. 1
INDEX
Sl. No. Date Name of the experiment Page No.
01 06.02.12
Estimation of aspirin in a preparation by UV-spectrometric
method.
2 – 3
02 07.02.12 Assay of milk of magnesia from the supplied sample. 4 – 7
03 08.02.12 Assay of ferrous fumerate from the supplied sample. 8 – 11
2. 2
Experiment No. 01 Date: 06.02.12
Name of the experiment: Estimation of aspirin in a preparation by UV-spectrometric
method.
Principle:
UV Spectroscopic method is one of the instrumental analytical methods. It is widely used
in industry research and in the clinical evaluation of many pharmaceuticals. It is relatively
quick process.
The principle of UV spectrophotometer is based on the Beer-Lambert law. This law states
that absorbance or optical density is directly proportional to the concentration. The law is
valid only for dilute solution.
By UV spectroscopic method we can either find out the amount of drug or chemical
present in the sample by taking absorbance of standard substance and sample.
Amount of the substance =
dardsofAbsorbance
dardsofAmountsampleofAbsorbance
tan
tan
Reagent:
0.1 N NaOH solution: For preparing 500 ml 0.1 N NaOH solution, 2 gm of NaOH is
taken in a 500 ml volumetric flask and the volume make up to the mark by adding distilled
water.
This solution is used as blank solution and solvent for preparing standard and sample
solution.
Procedure:
Preparation of standard solution:
1. 150 mg of standard aspirin was dissolved in 0.1 N NaOH in a 100 ml volumetric
flask and the solution was made 100 ml. No filtration was required for this solution.
2. 1 ml of prepared solution was taken in a volumetric flask and made the volume
100 ml with 0.1 N NaOH. This solution was used as standard solution. The final
concentration of this solution would be 15 g/ml.
Preparation of sample solution:
3. The supplied tablet was grinded into powder in a mortar and the powder was
divided into two equal portions. One portion of powder which was equivalent to 150 mg of
aspirin was taken in a 100 ml volumetric flask. After addition of 40–60 ml 0.1 N NaOH
solution, the flask was heated in water bath at 37–40C for 30 minutes.
4. Then the solution was cooled and by adding 0.1 N NaOH solution, it was made up
to 100 ml. The prepared solution was filtered.
3. 3
5. Again, 1 ml of filtered solution was taken in a volumetric flask and made the
volume 100 ml with 0.1 N NaOH. This solution was used as sample solution. The final
concentration of this solution also would be 15 g/ml.
6. Absorbance was taken for standard and sample solution at 292 nm.
Data:
Absorbance of blank solution, a =
Absorbance of standard solution, b =
Absorbance of sample solution, c =
Calculation:
Amount of sample =
b
c 150
mg
Tablet weight = mg
mg of aspirin powder contains = mg aspirin
” ” ” ” = ”
= (P) mg of aspirin
Potency =
300
100P
=
= %
Result:
The potency of supplied aspirin tablet was %.
Comments:
4. 4
Experiment No. 02 Date: 07.02.12
Name of the experiment: Assay of milk of magnesia from the supplied sample.
Principle:
Back titration is frequently used when a reaction proceeds slowly or when the substance
to be assayed does not give a distinct, sharp end point with an indicator by direct titration.
Back titration or Residual titration is carried out by dissolving the substance under
examination in an accurately measured quantity of standard solution in excess or by heating
the reaction mixture.
To know the volume of the analyte solution, a known excess (100% to 200%) of the
reagent is added. The reaction mixture is heated or kept sometimes so that the reaction is
complete. Then, the unreacted reagent is determined by titration with another suitable
standard reagent.
The Milk of Magnesia is dissolved in an accurately measured excess of 1 N H2SO4
solution to ensure complete neutralization of all the Mg(OH)2 with the formation of the
soluble MgSO4.
The excess acid is then determined by residual titration with 1 N NaOH using methyl red
as indicator.
Knowing the amount of the reagent consumed, the quantity of the analyte is calculated by
stoichiometric calculation.
The reaction which takes place when the milk of magnesia is dissolved and upon residual
titration are as follows:
Mg(OH)2 + H2SO4 MgSO4 + 2H2O
H2SO4 + 2NaOH Na2SO4 + 2H2O
1 ml of 1 N H2SO4 = 29.17 mg of Mg(OH)2
The percent of Mg(OH)2 present in the sample can be calculated from the following
formula:
10042
sampletheofweight
sampleofweightmEqNNaOHofmlNSOHofml
The USP requires that milk of magnesia contains not less than 7% and not more than
8.5% of Mg(OH)2.
5. 5
Reagent and their preparation:
1. 1 N 250 ml H2SO4 solution: 6.78 ml of 98.08% of conc. H2SO4 was taken into 100
ml of water in a 250 ml volumetric flask and then add water up to mark 250 ml.
2. 1 N 100 ml Na2CO3 solution: 5.3 gm of Na2CO3 was taken into 7 ml of distilled
water in a 100 ml volumetric flask. Finally volume was adjusted up to mark by adding
distilled water.
3. 1 N 250 ml NaOH solution: 10 gm of NaOH was taken into 125 ml of distilled water
in a 250 ml volumetric flask. Finally volume was adjusted up to mark by adding distilled
water.
Standardization of 1N H2SO4 solution by 1 N Na2CO3 solution:
i. 10 ml of Na2CO3 was taken in a conical flask. 1-2 drops of methyl red indicator was
added to it.
ii. The titration was performed using 1 N H2SO4 solution which was previously kept on
burette. When the yellow color disappeared, addition of H2SO4 was stopped and red color
appeared.
iii. The experiment was repeated for three times.
Data for standardization of H2SO4 solution:
No. of
observation
Volume of Na2CO3
(V1 ml)
Volume of H2SO4
solution (ml)
Difference
(ml)
Mean
volume
(V2 ml)IBR FBR
1 10
2 10
3 10
Calculation of strength of H2SO4 solution:
We know that, V1S1 = V2S2 Here, V1 = 10 ml
S2 =
2
11
V
SV
S1 = N
V2 = ml
= S2 = ?
= N
6. 6
Standardization of 1 N NaOH by H2SO4:
i. 10 ml H2SO4 was taken in a conical flask and 1-2 drops of methyl red indicator was
added to it.
ii. The titration was performed using 1 N NaOH solution which was preciously kept on
burette. When the red colour disappeared, addition of NaOH was stopped and yellow colour
appeared.
iii. The experiment was repeated for three times.
Data for standardization of NaOH solution:
No. of
observation
Volume of H2SO4
solution
(V1 ml)
Volume of NaOH
solution (ml)
Difference
(ml)
Mean
volume
(V2 ml)IBR FBR
1 10
2 10
3 10
Calculation of strength of NaOH solution:
We know that, V1S1 = V2S2 Here, V1 = 10 ml
S2 =
2
11
V
SV
S1 = N
V2 = ml
= S2 = ?
= N
Procedure for sample preparation and titration:
i. 5 ml of milk of magnesia was taken in a conical flask.
ii. 25 ml of 1 N H2SO4 solution was added to it.
iii. After solution is complete, methyl red indicator 1-2 drops were added.
iv. The excess acid was titrated with 1 N NaOH which was previously kept on
burette. When yellow colour appeared, addition of NaOH solution was stopped.
v. The experiment was done for two times.
7. 7
Data for standardization of Na2S2O3:
No. of
observation
Volume of added
H2SO4 solution
(V1 ml)
Volume of NaOH
solution (ml)
Difference
(ml)
Mean
volume
(V2 ml)IBR FBR
1 25
2 25
Calculation of percentage of Mg(OH)2:
=
100
02917.042
sampletheofweight
NNaOHofmlNSOHofml
=
100
02917.0
sampletheofweight
= 100
5
02917.0
= %
Result:
The percentage of Mg(OH)2 present in sample was %.
Comments:
8. 8
Experiment No. 03 Date: 08.02.12
Name of the experiment: Assay of ferrous fumerate from the supplied sample.
Principle:
Assay of ferrous fumerate is done by carrying out an oxidation-reduction titration method
using 0.1 N cerric ammonium sulfate [NH4(Ce) (SO4)2 . 2H2O] as a titrant and phenanthroline
ferrous complex as an indicator.
At the end of the titration color of the titration medium changes into bluish green color.
The supplied 0.1 N cerric ammonium sulfate solutions are previously standardized with
Na2S2O3 solution, which in turn was standardized by K2Cr2O7 solution.
1 ml of cerric ammonium sulfate = 16.99 mg of ferrous fumerate.
Reagent and their preparation:
1. 1 N 100 ml HCl solution: 8.5 ml 36.5% concentrated HCl (specific gravity 1.16) was
taken in a volumetric flask and added water q. s. to 100ml.
2. 0.1 N 250 ml Cerric ammonium sulfate solution: 16.5 gm of this reagent was taken
into 150 ml of distilled water in a 250 ml of volumetric flask, 7.5 ml of concentrated H2SO4
was added and the flask was shaken for dissolving. Then the solution was heated at 37-40C
at water bath until a fresh color of the solution was obtained. Finally volume was adjusted up
to the mark by adding distilled water.
3. 0.1 N 500 ml Na2S2O3 solution: 12.4 gm of Na2S2O3 was taken into 500 ml
volumetric flask. About 300 ml distilled water was added and shake well to dissolve. After
that distilled water was added up to the mark.
4. 0.1 N 100 ml K2Cr2O7 solution: 0.49 gm of K2Cr2O7 was taken in a 100 ml conical
flask and mark up to with distilled water.
5. Kl solution: 10 gm of KI was taken into 100 ml volumetric flask and water was
added q. s. to 100 ml.
6. Starch solution: 0.2 gm of starch was taken into 100 ml of water and heated up to
complete the solution.
7. Phenanthroline complex: 0.7 ml of ferrous sulfate was taken into a 100 ml
volumetric flask and 1.5 gm of phenanthroline was added and water q. s. to 100 ml was
added.
9. 9
Standardization of 0.1 N Na2S2O3 solution by 0.1 N K2Cr2O7 solution:
i. 10 ml of K2Cr2O7 solution was taken in a conical flask. 2 gm of NaHCO3 and 3 gm of
KI was added to it and finally 5 ml conc. HCl was added.
ii. The conical flask was covered with a watch glass and kept for 5 minutes in a dark
place.
iii. The watch glass was washed down with distilled water and the solution was diluted
with about 50 ml of distilled water.
iv. The titration was performed by using 0.1 N Na2S2O3 solution which was previously
kept on burette. When light yellow color appeared, the addition of thiosulfate solution was
stopped and few drops of starch solution were added. It was again titrated with thiosulfate
solution until blue color disappeared.
v. The same experiment was done for three times.
Data for standardization of Na2S2O3:
No. of
observation
Volume of K2Cr2O7
(V1 ml)
Volume of Na2S2O3
solution (ml) Difference
(ml)
Mean
volume
(V2 ml)IBR FBR
1 10
2 10
3 10
Calculation of strength of Na2S2O3 solution:
We know that, V1S1 = V2S2 Here, V1 = 10 ml
S2 =
2
11
V
SV
S1 = N
V2 = ml
= S2 = ?
= N
Standardization of Cerric ammonium sulfate by Na2S2O3 solution:
i. 10 ml of cerric ammonium sulfate was taken in a 250ml conical flask and 15 ml KI
solution was added.
ii. The titration was performed by using 0.1 N Na2S2O3 solution which was previously
kept in burette. When light yellow color was appeared, addition of thiosulfate was stopped
and 1ml of starch solution was added as an indicator. It was again titrated with this thiosulfate
solution until blue color disappeared.
iii. The experiment was repeated for three times.
10. 10
Data for standardization of Cerric ammonium sulfate:
No. of
observation
Volume of cerric
ammonium sulfate
(V2 ml)
Volume of Na2S2O3
solution (ml) Difference
(ml)
Mean
volume
(V1 ml)IBR FBR
1 10
2 10
3 10
Calculation of strength of cerric ammonium sulfate:
We know that, V1S1 = V2S2 Here, V1 = 10 ml
S2 =
2
11
V
SV
S1 = N
V2 = ml
= S2 = ?
= N
Assay of ferrous fumerate in supplied sample by standard cerric
ammonium sulfate:
Procedure:
i. The supplied sample (i.e. average of 10 ferrous fumerate) was taken into a 50 ml
volumetric flask.
ii. 10 ml of 1 N HCl was added to it and then boiled until the solid substance dissolves
completely in a water bath.
iii. After cooling the volume was adjusted by adding distilled water.
iv. 25ml of resulting solution was transferred into a 250 ml conical flask and 3-4 drops of
phenanthroline complex was added and titrated against 0.1 N cerric ammonium sulfate until
bluish green color was appeared.
v. The experiment was repeated for two times.
Table for final titration:
No. of
observation
Volume of supplied
solution
(ml)
Volume of cerric
ammonium sulfate
(ml)
Difference
(ml)
Mean
(ml)
IBR FBR
1 25
2 25
11. 11
Calculation:
1 ml of cerric ammonium sulfate = 16.99 mg of ferrous fumerate
of ” ” ” =
1.0
99.16
” ”
= mg of ferrous fumerate
Now, 25 ml solution contains = mg of ferrous fumerate
50 ” ” ” = ” ” ” ”
= (P) mg of ferrous fumerate
Potency =
200
100P
=
= %
Result:
The potency of ferrous fumerate was %.
Comments: