Term: chlorine (Cl)
Literally
meaning: “”
Origin: Anc Greek
χλωρός/cloros(=green-yellow)
Coined/History
Although sodium cloride was known since ancient times
it was not until in 1630 when Belgian
physician Jan Baptist van Helmont obtained for first time chlorine gas. In 1774
Swedish chemist Carl Wilhelm Scheele, synthesized and named it as “dephlogisticated myriatic acid air”
having thought that he synthesized an oxide. The suggestion that Scheele;s gas
was a simple element was made in 1809 by Joseph Louis Gay-Lussac and
Louis-Jacques. This confirmed by sir Humphry Davy in 1810, who named it chlorine. Chlorine is very
poisonous and was used as weapon during the First World War (1915).
Definition
Chlorine is the chemical element with atomic number 17
and atomic mass 35.453. Chlorine is very poisonous (respiratory irritant) and is made on a large scale from sodium
chloride through electrolysis. It is used for PVC plastic, household bleach and
for purifying drinking water.. Diatomic chlorine is a yellow-green gas that
has a distinctive strong odor, familiar to most from common bleach. Chlorine is not found uncombined in nature.
No comments:
Post a Comment