Chemistry

Chemistry History


Start

The principle of chemistry begins, according to anthropologists, with the principle of man on earth. The discovery of fire was of great importance. In this way man could cook his food and obtain a source of light to warm and protect himself from wild animals.

The kitchen was then the first chemistry laboratory, since food was preserved by cooking.

It was in the kitchen that the Chinese discovered black powder during the tenth century in the Han Dynasty. The discovery was made by accident, as the alchemists of the time tried to find the elixir of long life.

Elements

For the Greek philosopher Aristotle (384 BC - 322 BC), substances were made up of four elements: earth, fire, water, and air. But at the same time, he believed in the existence of a fundamental particle, the atom.

Since ancient times, some elements have been known to man, such as carbon, iron, sulfur, gold, silver, copper, mercury, tin.


Some metals known from ancient times: gold, mercury and iron

Later the elements were discovered: arsenic, antimony, bismuth, zinc, cobalt and phosphorus.

From the 16th century, platinum, zinc, nickel, nitrogen, fluorine and hydrogen were discovered. In 1771 Joseph Priestley first isolated oxygen. At the same time, chlorine, manganese, molybdenum, tellurium and tunsgene were discovered.

Later they discovered uranium, zirconium, strontium, titanium, chromium. Around 1800, cerium, rhodium, palladium, osmium, iridium and magnesium were discovered.


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