Green chemistry is the design of chemical products and processes that reduce or eliminate the use or generation of hazardous substances. Green chemistry applies across the life cycle of a chemical product, including its design, manufacture, use, and ultimate disposal
Green Chemistry is the utilisation of a set of principles that reduces or eliminates the use or generation of hazardous substances in the design, manufacture and application of chemical products .
It's a power packed presentation which can be used to win prizes and rewards for benefits of nature .It deals about the use of green chemistry,what is the use of green chemistry.The green chemistry is the base of future which enables us to switch from the harmful,toxic bases such as plastic to other nature enhancement promoting substance use.
Green Chemistry is the utilisation of a set of principles that reduces or eliminates the use or generation of hazardous substances in the design, manufacture and application of chemical products .
It's a power packed presentation which can be used to win prizes and rewards for benefits of nature .It deals about the use of green chemistry,what is the use of green chemistry.The green chemistry is the base of future which enables us to switch from the harmful,toxic bases such as plastic to other nature enhancement promoting substance use.
Presentation.pptx. Green Chemistry and principal of green ChemistryHajira Mahmood
A complete and comprehensive approach towards green chemistry & its applications. it plays significance role to sustain user friendly environment by reducing waste and enhance energy efficiency & atom economy. It leads less hazardous chemicals that are easy to discard.
Green chemistry – The Chemical Industries' Way To Go GreenTariq Tauheed
At a time when everyone seems to be concerned about the environment, how exactly would the chemical industries play their part? A sneak peek into the fundamentals of how the chemical industries can adapt, and/or restructure.
We need the earth, the
The design of chemical products and processes that reduce or eliminate the use and generation of hazardous substances. Green Chemistry moves our consideration of how to deal with environmental, health and safety problems from the circumstantial to the intrinsic.
Power Point Presentation on GREEN CHEMISTRY
(info on pollution, causes and its prevention)
Friends if you found this helpful please click the like button. and share it :)
Presentation.pptx. Green Chemistry and principal of green ChemistryHajira Mahmood
A complete and comprehensive approach towards green chemistry & its applications. it plays significance role to sustain user friendly environment by reducing waste and enhance energy efficiency & atom economy. It leads less hazardous chemicals that are easy to discard.
Green chemistry – The Chemical Industries' Way To Go GreenTariq Tauheed
At a time when everyone seems to be concerned about the environment, how exactly would the chemical industries play their part? A sneak peek into the fundamentals of how the chemical industries can adapt, and/or restructure.
We need the earth, the
The design of chemical products and processes that reduce or eliminate the use and generation of hazardous substances. Green Chemistry moves our consideration of how to deal with environmental, health and safety problems from the circumstantial to the intrinsic.
Power Point Presentation on GREEN CHEMISTRY
(info on pollution, causes and its prevention)
Friends if you found this helpful please click the like button. and share it :)
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptxEduSkills OECD
Andreas Schleicher presents at the OECD webinar ‘Digital devices in schools: detrimental distraction or secret to success?’ on 27 May 2024. The presentation was based on findings from PISA 2022 results and the webinar helped launch the PISA in Focus ‘Managing screen time: How to protect and equip students against distraction’ https://www.oecd-ilibrary.org/education/managing-screen-time_7c225af4-en and the OECD Education Policy Perspective ‘Students, digital devices and success’ can be found here - https://oe.cd/il/5yV
The Art Pastor's Guide to Sabbath | Steve ThomasonSteve Thomason
What is the purpose of the Sabbath Law in the Torah. It is interesting to compare how the context of the law shifts from Exodus to Deuteronomy. Who gets to rest, and why?
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
2. GREENCHEMISTRY
GREENCHEMISTRY : is the branch of chemistry that
deals with the design and optimization of
processes and products in order to lower, or
remove altogether, the production and use of
toxic substances. Green chemistry is not the
same as environmental chemistry.
The former focuses on the environmental
impact of chemistry and the development of
sustainable practices that are environment-
friendly (such as a reduction in the
consumption of non-renewable resources
and strategies to control environmental
pollution). The latter focuses on the effects
3. green chemistry
(THE 12 KEY PRINCIPLESOF GREENCHEMISTRY)
The twelve principles put forward by the American chemists Paul
Anastas and John Warner in the year 1998 to lay the foundation
for green chemistry are listed below.
Prevention of waste: Preventing the formation of waste
products is always preferable to the clean-up of the waste
once it is generated.
Atom economy: The synthetic processes and methods that
are devices through green chemistry must always try to
maximise the consumption and incorporation of all the raw
materials into the final product. This must strictly be followed in
order to minimise the waste generated by any process.
Avoiding the generation of hazardous
chemicals: Reactions and processes that involve the
synthesis of certain toxic substances that pose hazards to
human health must be optimised in order to prevent the
generation of such substances.
4. process must be minimized to
the maximum possible extent.
Incorporation of renewable feedstock: The use of renewable
feedstock and renewable
raw materials must be preferred over the use of non-
renewable ones.
Incorporation of renewable feedstock: The use of renewable
feedstock and renewable raw
materials must be preferred over the use of non-renewable
ones.
Reduction in the generation of derivatives: The unnecessary
use of derivatives must be
minimalized since they tend to require the use of additional
reagents and chemicals,
resulting in the generation of excess waste.
Incorporation of Catalysis: In order to reduce the energy
requirements of the chemical
reactions in the process, the use of chemical catalysts and
catalytic reagents must be
advocated.
5. Incorporating real-time analysis: Processes and analytical
methodologies must be developed to the point that they can offer
real-time data for their monitoring. This can enable the involved
parties to stop or control the process before toxic/dangerous
substances are formed
Incorporation of safe chemistry for the prevention of
accidents: While designing chemical processes, it is important to
make sure that the substances that are used in the processes are
safe to use. This can help prevent certain workplace accidents,
such as explosions and fires. Furthermore, this can help develop
a safer environment for the process to take place in.
6. Examples of the Impact of Green Chemistry
Use of Green Solvents
Many chemical synthesis reactions that are carried out on an
industrial scale require large amounts of chemical solvents.
Furthermore, these solvents are also used industrially for
degreasing and cleaning purposes. However, many traditional
solvents that have been used for such purposes in the past are
known to be toxic to human beings. Some such solvents are also
known to be chlorinated.
Click here to learn about the different examples of solvents.
The advancement of green chemistry has brought many
alternatives to these toxic solvents. The green solvents that are
coming up as alternatives are known to be derived from
renewable sources and are also known to be biodegradable.
Thus, green chemistry has great potential to lower the toxicity of
certain industrial environments by developing safer alternatives.
7. Development of Specialised Synthetic Techniques
The development of specialised synthetic techniques can
optimise processes in order to make them more environmentally
friendly by making them adhere to the principles of green
chemistry. An important example of such an enhanced synthetic
technique is the development of the olefin metathesis reaction in
the field of organic chemistry. This reaction, developed by Robert
Grubbs, Richard Schrock, and Yves Chauvin, won the Nobel
Prize for Chemistry in the year 2005.
Other notable developments brought forward by advancements in
green chemistry include:
The employment of supercritical carbon dioxide as a green
solvent (as an alternative to other toxic solvents).
Incorporating the use of hydrogen in enantioselective synthesis
reactions (also known as asymmetric synthesis).
Incorporating aqueous solutions of hydrogen peroxide (a
chemical compound with the formula H2O2) to drive relatively
clean oxidation reactions.
8. Production of Hydrazine
Initially, the most popular method for the production of
hydrazine (an inorganic chemical compound with the
chemical formula N2H4) was the Olin Raschig process,
which involved the use of ammonia and sodium
hypochlorite. However, with the development of green
chemistry, a more environment-friendly alternative to this
process was discovered.
In the peroxide process for the production of hydrazine,
ammonia is reacted with hydrogen peroxide. In this
alternate method, water is produced as the only side
product. It can also be noted that the peroxide process
does not require any auxiliary extracting solvents.
To learn more about green chemistry and other important
branches of chemistry such as stereochemistry, register
with BYJU’S and download the mobile application on your
smartphone.
9. thank you
I have enough confidence and knowledge about
this project that I will become a perfect fit there.
I hope I will play an important role in the project
and it will open doors for me to work on different
projects.