CHEMISTRY- AN IMPORTANT ASPECT OF ENGINEERING
This is my maiden attempt to share my views with the Engineering world. However, what I am
going to discuss is not about engineering. It’s about chemistry and its role in engineering. Being
a Chemistry lecturer in a technical institute, I have seen the lack of interest in students in the
mentioned subject. They study it half heartedly as a mandatory subject, not as a choice.
In the present scenario, the students aiming at being technical professionals need to know the
importance of chemistry in their respective fields. They need to be aware of chemistry in their
daily life.
Before I make the topic technical, am discussing the chemistry in daily life. Anyone, anyhow,
anywhere starts his day chemistry. It is mandatory and irresistible part of our life. One can find
chemistry in daily life in the foods we eat, the air we breathe, cleaning chemicals, our emotions
and literally every object we can see or touch. Here's a look at examples of everyday chemistry.
Some common chemistry may be obvious, but others might surprise us.
Our body is made up of chemical compounds, which are combinations of elements.
The emotions that you feel are a result of chemical messengers, primarily
neurotransmitters. Love, jealousy, envy, infatuation and infidelity all share a basis in
chemistry.
They sit there, so harmless-looking on the kitchen counter. Yet as soon as we cut an
onion, the tears begin to fall. What is it in an onion that makes them burn our eyes? We
can be sure everyday chemistry is the guilty party.
Soap is a chemical that mankind has been making for a very long time. You can form a
crude soap by mixing ashes and animal fat. How can something so nasty actually make
you cleaner? The answer has to do with the way soap interacts with oil-based grease and
grime. The discussion also deals with the chemistry of coffee, drinks, lactose intolerance,
smoking and chemistry of sleep.
Let us simplify it more:
The day we start with: Toothpaste:
Ever wonder where toothpaste and mouthwash came from? What people used for toothpaste before the invention of Colgate, Pepsodent or Aquafresh? Below are some interesting point and recipes that may help satisfy our curiosity!! Back in the Days of Buddha…. It has been recorded that he would use a "tooth stick" from the God Sakka as part of his personal hygiene regimen. Ever wonder where toothpaste and mouthwash came from? What people used for toothpaste Before the invention of Colgate, Pepsodent or Aquafresh? Below are some interesting points
and recopies’ that may help satisfy our curiosity!!
Back in the Days of Buddha….
It has been recorded that he would use a "tooth stick" from the God Sakka as part of his
personal hygiene regimen.
So….what's in the toothpaste of the 90s?
Sodium monofluorophosphate color flavoring Fluoride foaming agents (Sodium Lauryl
Sulfate).
Herbal toothpastes have gained popularity for people looking for”natural" toothpaste or for
those who don't want fluoride in their dental cleansers. Some herbal toothpaste contain
Peppermint oil plant extracts (strawberry extract) special oils
and cleansing agents
The 21st Century….
If the trends of the 20th century continue we should see more
toothpaste that whiten and brighten the teeth, and give us the
ultimate brushing or rinsing experience.
The more things change, the more they stay the same!
Precipitated Chalk- 58.75%,
Glycerin-28.60%,
Water-5.60%,
Starch-1.10%,
Soap- 5%,
Mineral oil- 0.25%,
Saccharin- 0.03%,
Hydrochloride- .0015%,
Thymol- 0.015%,
Menthol- 0.03%,
Oil of eucalyptus- 0.11%,
Methyl Salicylate- 0.11%,
Oil of Peppermint- 0.40%
The Chemistry of Soaps/Detergents:
“Surfactants allow us to protect a water surface and blow beautiful soap bubbles which delight
our children” P.-G. DeGennes. SOFT MATTER, Nobel Lecture, 1991.
There are substances which can be dissolved in water (salt for example), and others that can't (for
example oil). Water and oil don't mix together, so if we try to clean an oily stain from a
cloth or from the skin, water is not enough. We need soap.Soap cleans by acting as an emulsifier.
It allows oil and water to mix so that oily grime can be removed during rinsing.
Soap cleans by acting as an emulsifier. It allows oil and water to mix so that oily grime can be
removed during rinsing.
Well this is just a very minute but fresh start of applications of chemistry in our daily life.
Many more applications will be highlighted in the next edition.
Ever wonder where toothpaste and mouthwash came from? What people used for toothpaste before the invention of Colgate, Pepsodent or Aquafresh? Below are some interesting point and recipes that may help satisfy our curiosity!! Back in the Days of Buddha…. It has been recorded that he would use a "tooth stick" from the God Sakka as part of his personal hygiene regimen. Ever wonder where toothpaste and mouthwash came from? What people used for toothpaste before the invention of Colgate, Pepsodent or Aquafresh? Below are some interesting point and recipes that may help satisfy our curiosity!! Back in the Days of Buddha…. It has been recorded that he would use a "tooth stick" from the God Sakka as part of his personal hygiene regimen. er wonder where toothpaste and mouthwash came from? What people used for toothpaste before the invention of Colgate, Pepsodent or Aquafresh? Below are some interesting point and recipes that may help satisfy our curiosity!! Back in the Days of Buddha…. It has been recorded that he would use a "tooth stick" from the God Sakka as part of his personal hygiene regimen. So….what's in the toothpaste of the 90s? Sodium monofluorophosphate color flavoring Fluoride foaming agents (Sodium Lauryl Sulfate). Herbal toothpastes have gained popularity for people looking for a "natural" toothpaste or for those who don't want fluoride in their dental cleansers. Some herbal toothpastes contain:
SHWETA KHURANA
M. Phill (Chemistry)