JSIERT

soap, paints, pen, tooth-paste, cooking oil, potable water are the six products of daily use.

Chemicals which help increasing food production are fertilisers like, sodium nitrate, potash, ammonium phosphate, urea,calcium nitrate etc. Pesticides like aldrin, malathion which are used to kill pests. Insecticides like D.D.T., B.H.C. fungicides like sulphur, etc.

Alchemy was both scientific and spiritual. They never separated them. It also lacked a common language for its concepts and processes i.e. there was no standardized scientific practice.

The goal of alchemy was to find a mythical and magical substance called “philosopher’s stone” not a literal stone but wax, liquid or powder which has magical power, which on heating with a base, iron and copper metals would turn into gold, the purest form of matter which would bring wealth, health and immortality.

‘Alchemists’ early were considered as chemists. They used all general techniques of chemistry in healing humans. Their contribution proved valuable to the society and also in the advancement of civilization. They had also contributed to an incredible number of future uses of chemicals, cosmetic, metals, ink, paints, medicines, etc.

Alchemy has its origin in a Greek word ‘Khemeia’ means “the art of transmuting metals”. It was based on experimentations and partly on spiritual discipline.

Chemistry is helpful in improving the health of human beings by providing Antibiotics, Pencilin, Tetracycline, Pain killers etc. It also provide us with Vitamins, Enzymes, Minerals and Anesthesia

The substances which produce heat energy on burning are called fuels.

“The branch of science that deals with the study of the composition and physical and chemical properties of various forms of matter is called Chemistry.”

It is the systematic effort by human beings to control nature through experiments and observation for their use.