This document is a student project report on preparing a sample of cuprammonium rayon threads from filter paper. It includes an introduction to rayon and the cuprammonium process, a list of required apparatus and chemicals, the procedure, conclusions and bibliography. The student successfully prepared a sample of cuprammonium rayon threads by dissolving filter paper pieces in a solution of copper sulfate and ammonia, then extruding the viscous solution through a syringe into an acid bath to form fibers. Precautions are noted for the preparation and fiber formation.
Class 12th chemistry project on "Rayon and its manufacturing" Cuprammonium method used. Detailed and With Pictures. All the content present . Ready to be pasted. COMPLETE PROJECT . Follow me :-)
To prepare rayon from cotton wool.(class 12 )RithuJ
This is the project that outlines the preparation of artificial silk or RAYON from cotton wool with the help of syringe and other easy available chemicals in the lab.
Rithu
AECS kudankulam
Class 12th chemistry project on "Rayon and its manufacturing" Cuprammonium method used. Detailed and With Pictures. All the content present . Ready to be pasted. COMPLETE PROJECT . Follow me :-)
To prepare rayon from cotton wool.(class 12 )RithuJ
This is the project that outlines the preparation of artificial silk or RAYON from cotton wool with the help of syringe and other easy available chemicals in the lab.
Rithu
AECS kudankulam
Chemistry Investigatory Project (12th isc 2017):- Preparation of Soap, Nail ...Student
In this slide, we had discussed about the Preparation of Soap, Nail Polish, Boot Polish, Varnish, Nail Polish Remover, Shampoo and Scents. and some of uses, raw material used,their production method.
This one is my Physics Investigatory Project done on the topic 'Physics Principle In Medicine'. You and I both of us know, without physics advancement in biology especially in the medical field is impossible. So, in this project we are gonna investigate through the various principles of physics which are used in the medical field ( like X ray machines, CT scanners, MRI and other advancements like SPECTS scan).
Both for class 11th & 12th.
Especially for class 12th.
Thank You... Hope you find it useful...
I have uploaded the complete document, with all the pages including the cover page, the acknowledgement, certificate and contents along with the Project content. Just download it and modify it and your project is ready, if that is all you have wanted. Otherwise use it as a reference for your project. "!!! IF YOU FIND IT WORTHY AT ALL, THEN GIVE ME A LIKE !!!" - It will motivate me to upload more such documents. -THANK YOU
To estimate quantity_of_casein_in_milkZoha Hussain
THEORY
Milk is a nutrient-rich, white liquid food produced by the
mammary glands of mammals. It is the primary source of
nutrition for infant mammals (including humans who are
breastfed) before they are able to digest other types of food.
Early-lactation milk contains colostrum, which carries the
mother's antibodies to its young and can reduce the risk of many
diseases. It contains many other nutrients including protein and
lactose. Interspecies consumption of milk is not uncommon,
particularly among humans, many of whom consume the milk of
other mammals.
As an agricultural product, milk, also called dairy milk, is
extracted from farm animals during or soon after pregnancy.
Dairy farms produced about 730 million tonnes of milk in 2011,
from 260 million dairy cows. India is the world's largest
producer of milk, and is the leading exporter of skimmed milk
powder, yet it exports few other milk products. The ever
increasing rise in domestic demand for dairy products and a
large demand-supply gap could lead to India being a net importer
of dairy products in the future.
The United States, India, China and Brazil are the world's
largest exporters of milk and milk products. China and Russia
were the world's largest importers of milk and milk products
until 2016 when both countries became self-sufficient,
contributing to a worldwide glut of milk.
Throughout the world, more than six billion people consume
milk and milk products. Over 750 million people live in dairy
farming households.
This one is a Chemistry investigatory project done on the topic 'Which Shampoo Is The Best?'. We have so many brands of shampoos currently available in the market. So, using the basic knowledge of science (or chemistry), we can make sure to ourselves which kinda shampoo is the best. There's nothing but we have taken various brands of shampoos ( like L’Oreal®, Dove®, Head & Shoulders®, Garnier Fructis®, Sunsilk®, TreSemmé®.
Both for class 11th and 12th.
I have given you the outfit... experiment is up to you...ALL THE BEST...
Physics Investigatory project on Diffractionsaurabh yadav
Physics investigatory project on Diffraction. Kendriya Vidyalaya physics investigatory project on Diffraction made by Saurabh Yadav a student of class 12.
Chemistry Investigatory Project Class 12 - Green Chemistry - Bio Diesel And B...Dhananjay Dhiman
Chemistry investigatory project for class 12 CBSE on the topic Green chemistry - bio diesel and bio petrol. It includes all the necessary formats and the content is relevant for the CBSE practical examination.
Chemistry Investigatory Project (12th isc 2017):- Preparation of Soap, Nail ...Student
In this slide, we had discussed about the Preparation of Soap, Nail Polish, Boot Polish, Varnish, Nail Polish Remover, Shampoo and Scents. and some of uses, raw material used,their production method.
This one is my Physics Investigatory Project done on the topic 'Physics Principle In Medicine'. You and I both of us know, without physics advancement in biology especially in the medical field is impossible. So, in this project we are gonna investigate through the various principles of physics which are used in the medical field ( like X ray machines, CT scanners, MRI and other advancements like SPECTS scan).
Both for class 11th & 12th.
Especially for class 12th.
Thank You... Hope you find it useful...
I have uploaded the complete document, with all the pages including the cover page, the acknowledgement, certificate and contents along with the Project content. Just download it and modify it and your project is ready, if that is all you have wanted. Otherwise use it as a reference for your project. "!!! IF YOU FIND IT WORTHY AT ALL, THEN GIVE ME A LIKE !!!" - It will motivate me to upload more such documents. -THANK YOU
To estimate quantity_of_casein_in_milkZoha Hussain
THEORY
Milk is a nutrient-rich, white liquid food produced by the
mammary glands of mammals. It is the primary source of
nutrition for infant mammals (including humans who are
breastfed) before they are able to digest other types of food.
Early-lactation milk contains colostrum, which carries the
mother's antibodies to its young and can reduce the risk of many
diseases. It contains many other nutrients including protein and
lactose. Interspecies consumption of milk is not uncommon,
particularly among humans, many of whom consume the milk of
other mammals.
As an agricultural product, milk, also called dairy milk, is
extracted from farm animals during or soon after pregnancy.
Dairy farms produced about 730 million tonnes of milk in 2011,
from 260 million dairy cows. India is the world's largest
producer of milk, and is the leading exporter of skimmed milk
powder, yet it exports few other milk products. The ever
increasing rise in domestic demand for dairy products and a
large demand-supply gap could lead to India being a net importer
of dairy products in the future.
The United States, India, China and Brazil are the world's
largest exporters of milk and milk products. China and Russia
were the world's largest importers of milk and milk products
until 2016 when both countries became self-sufficient,
contributing to a worldwide glut of milk.
Throughout the world, more than six billion people consume
milk and milk products. Over 750 million people live in dairy
farming households.
This one is a Chemistry investigatory project done on the topic 'Which Shampoo Is The Best?'. We have so many brands of shampoos currently available in the market. So, using the basic knowledge of science (or chemistry), we can make sure to ourselves which kinda shampoo is the best. There's nothing but we have taken various brands of shampoos ( like L’Oreal®, Dove®, Head & Shoulders®, Garnier Fructis®, Sunsilk®, TreSemmé®.
Both for class 11th and 12th.
I have given you the outfit... experiment is up to you...ALL THE BEST...
Physics Investigatory project on Diffractionsaurabh yadav
Physics investigatory project on Diffraction. Kendriya Vidyalaya physics investigatory project on Diffraction made by Saurabh Yadav a student of class 12.
Chemistry Investigatory Project Class 12 - Green Chemistry - Bio Diesel And B...Dhananjay Dhiman
Chemistry investigatory project for class 12 CBSE on the topic Green chemistry - bio diesel and bio petrol. It includes all the necessary formats and the content is relevant for the CBSE practical examination.
STERELISATION OF WATER WITH BLEACHING POWDER VinayakSoni15
CHEMISTRY INVESTIGATORY PROJECT CLASS 12 [STERELISATION OF WATER WITH BLEACHING POWDER ] HOPE IT WILL HELP YOU FURTHER.
IMPORTANT:- RESULT MAY NOT BE ACCURATE TO SUBJECT.
THIS PROJECT MAERIAL HAS BEEN GATHERED FROM MANY INTERNET RESOURCES.
CBSE Investigatory Project For Class 11 Of Chemistry Subject.
Topic- To Study The Forming Capacity Of The Various Samples Of Soap.
.
Disclaimer- The Direct Downloading Of The File and Printing Without any Changes Is Violation Of the Copyright Issues Published On This File. Kindly Use It For Informative Purposes Only.
Thank You
You Can Also Download Complete File Via link-
https://drive.google.com/file/d/1xiJ4OeGgvMzd7kUjSxM2SZuTv2eBPUTS/view?usp=sharing
Introduction of Viscose Rayon Fiber, Properties: physical , chemical and biological properties of Viscose Rayon fiber, manufacturing : steeping, mercerization, ageing, xanthation, ripening and spinning & uses of Viscose Rayon Fiber
This project contains topic "Effect of sodium carbonate on foaming capacity of Soap" with several observations to help class XII students for their projects.
really helpful for your projects try to do some work on your own to make it look more presentable i guess this is is enough to make you all know the importance of this project
Indian Dental Academy: will be one of the most relevant and exciting training center with best faculty and flexible training programs for dental professionals who wish to advance in their dental practice,Offers certified courses in Dental implants,Orthodontics,Endodontics,Cosmetic Dentistry, Prosthetic Dentistry, Periodontics and General Dentistry.
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2. ‘XII’ ‘B’
SESSION: 2013-14
ROLL NO::- 12227
KENDRIYA VIDYALAYA B.E.G
CERTIFICATE
ThIs Is To CERTIFy ThAT MAsTER PRANAV GhILDIyAL
sTuDyING IN CLAss XII B oF KENDRIyA VIDyALAyA B.E.G
DuRING ThE ACADEMIC yEAR 2013-14 CoMPLETED ThE AssIGNED
PRojECT AND hAs suBMITTED A sATIsFACToRy ACCouNT oF hIs
PRojECT.
DATE:
sIGNATuRE oF INTERNAL
sIGNATuRE oF
EXTERNAL
EXAMINER
EXAMINER
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3. __________________
__________________
ACKNoWLEDGEMENT
This word acknowledgement is to express my deep sense of gratitude
towards those unseen hands which are my teacher Mrs. H.
JADHAV (CHEMISTRY), our principal Ms. N. GEETHA RAO
and my Parents who gave me the golden opportunity to do this
wonderful project on the fore mentioned topic without their contribution
the successful completion of this project would not have materialized.
The project helped me in doing a lot of Research and I came to know
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4. about so many new things I am really thankful to all of them for
assisting me and helping me finish this project in the limited time I had.
SINCERELY
PRANAV GHILDIYAL
AIM OF THE PROJECT:To prepare a sample of cuprammonium rayon threads from filter paper.
APPRATUS REQUIRED : Conical flask (preferably 250mL )
Funnel
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5. Glass rod
Beaker (preferably 250mL )
Water bath
Filter paper ( Preferably whatman paper or else ordinary filter paper sheets)
CHEMICALS REQUIRED : CuS04
NaOH solution.
Liquor ammonia solution
Dilute H2S04
Whatman paper
Distilled H20
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6. BACKGROUND :Rayon is a synthetic fiber produced from cellulose. Developed in an
attempt to produce silk chemically, it was originally called artificial silk
or wood silk. Rayon is regenerated fiber, because cellulose is
converted to a liquid compound and then back to cellulose in the form
of fiber. For example, cuprammonium rayon is made by dissolving
cellulose in an ammoniacal copper sulphate solution.
Characteristics Of Rayon Fibers: They are highly absorbent,
Soft and comfortable
Easy to dye &
Drape well .
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7. INTRODUCTION
:-
Cellulose is nature's own giant molecule. It is the fibrous
materials that every plant from sea weed to the sequoia made by
baking glucose molecules in long chains, the chains are bound
together in the fibers that gives plants their shape and strength. Wood
has now become the main source of cellulose. Since it contains only
40% to 50% cellulose, the substance must be extracted by "pulping".
The logs are flaked, and then simmered in chemicals that dissolve the
tarry lignin, resins and minerals. The remaining pulp, about 93%
cellulose, is dried and rolled into sheets-raw material for paper, rayon
and other products .
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8. It can be obtained in two ways:
1. VISCOSE PROCESS :-
Cellulose is soaked in 30% caustic soda solution for about 3hrs. The
alkali solution is removed and the product is treated with CS 2. This
gives cellulose xanthate, which is dissolved in NaOH solution to give
viscous solution. This is filtered and forced through a spinneret into a
dilute H2S04 solution, both of which harden the gum like thread into
rayon fibers. The process of viscose was discovered by C.F.Cross &
E.J.Bevan in the year1891.
2. CUPRAMMONIUM RAYON :-
Cuprammonium rayon is obtained by dissolving pieces of filter paper
in a deep blue solution containing tetra-ammine cupric hydroxide
[Cu(NH3)4](OH)2]. The latter is obtained from a solution of copper
sulphate [CuSO4] to it. NH40H solution is added to precipitate cupric
hydroxide which is then dissolved in excess of NH3.
Reactions: I. [Cu(NH3)4](OH)2 + pieces of filter paper left for 1 0-15 days
→ (give a viscous solution called VISCOSE )
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9. PROCEDURE
A. Preparation of schweitzer" s solution: a) Weigh 20g of CuS04.5H2O
b) Transfer this to a beaker having 100ml distilled water and add 15ml of dilute
H2S04 to prevent hydrolysis of CUS04.
c) Stir it with glass rod till a clear solution is obtained. Add l1inl of liquor ammonia
drop by drop with slow stirring. The precipitate of cupric hydroxide is separated
out.
d) Filter the solution containing cupric hydroxide through a funnel with filter paper
e) Wash the precipitate of cupric hydroxide with water until the filtrate fails to give
a positive test for sulphate ions with barium chloride solution. .
f) Transfer the precipitate to a beaker that contains 50mlliquor ammonia or wash it
down the funnel. The precipitate when dissolved in liquor ammonia gives a deep
blue solution of tetra ammine cupric hydroxide. This is known as SCHWEITZER'S
SOLUTION
B. Preparation of cellulose material: a) After weighing 2g of filter paper divide it into very fine pieces and then transfer
these pieces to the tetra ammine cupric hydroxide solution in the beaker.
b) Seal the flask and keep for 10-15 days, during this period the filter paper is
dissolved completely.
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10. C.RAYON THREADS FORMATION :a) Take 50ml of distilled water in glass container. To this add 20ml of conc.
H2S04.Cool the solution under tap water. In a big container pour some of the
solution.
b) Fill the syringe with cellulose solution prepared before.
c) Place the big glass container containing H 2S04 solution produced before in ice
(the reaction being spontaneous results in excess release of energy in the form of
heat which makes the fiber weak and breaks them).
d) Immerse the tip of the syringe in the solution and press gently. Notice the fibers
getting formed in acid bath. Continue to move your hand and keep pressing the
syringe to extrude more fibers into the bath.
e) Leave the fibers in solution till they decolourise and become strong enough.
f) Filter and wash with distilled water.
CONCLUSION
Sample of Cuprammonium Rayon Threads was successfully prepared.
PRECAUTIONS
a) Addition of excess NH3 should be avoided
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11. b) Before taking the viscose in the syringe make sure, it does not contain any
particle of paper otherwise, it would clog the needle of syringe.
c) Addition ofNH3 should be done in a fume cupboard and with extreme care. The
fumes if inhaled may cause giddiness.
d) Use a thick needle otherwise the fiber won't come out.
BIBLIOGRAPHY
www.icbse.com
DISCLAIMER :I HAVE ALSO MADE THIS PROJECT
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I EXPREE MY REGARDS WHO ARE
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