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What is Chlorine? Facts about the
Discovery and
History of the Chlorine
Element
Chlorine was discovered by
Carl Wilhelm Scheele
in 1774. While studying the action of hydrochloric acid upon the
mineral pyrolusite, in 1774, Scheele obtained a yellowish,
gaseous substance to which he gave a name in keeping with the
phlogiston theory then current. Later it was supposed to be a
compound containing
Oxygen. In 1810, however, the English
chemist Sir Humphry Davy proved it to be an element and named it
chlorine.
Carl Wilhelm
Scheele
Carl Scheele (9 December
1742 – 21 May 1786) was a German chemist who made a number of
important chemical discoveries before many others but was rarely
given the credit for his findings. For instance, although
Scheele discovered oxygen Joseph Priestley published his
findings first so was given the credit. Carl Scheele also
identified molybdenum,
Tungsten, barium,
Hydrogen
and chlorine
before Humphry Davy and other scientists.
Carl Scheele (1742 - 1786)
Sir Humphry
Davy
Sir Humphry Davy (1778-1829) isolated sodium,
Lithium,
Potassium, barium, strontium, and
Calcium by means of
electrolysis; demonstrated the elementary nature of chlorine;
invented the safety lamp; discovered the stupefying effects of
nitrous oxide.
Sir Humphry Davy (1778 - 1829)
Chlorine as on the
Periodic Table
Check out Chlorine on the Periodic Table which arranges each chemical
element according to its atomic number, as based on the
Periodic Law, so that chemical elements with similar properties are in the
same column. Our Periodic Table is simple to use - just click on
the symbol for Chlorine as on the Periodic Table for additional information and for an instant
comparison of the Atomic Weight, Melting Point, Boiling Point and
Mass - G/cc with any other element. An invaluable source of facts
and information as a Chemistry reference guide.
Other elements classified as
Halogens
The other elements contained in
this classification are as follows:
What is Chlorine - IUPAC and the
Modern Standardised Periodic Table
The Standardised Periodic Table in use today was agreed by the
International Union of Pure Applied Chemistry, IUPAC, in 1985 and
now recognises more periods and elements than
Dimitri
Mendeleev knew in his day in his day but still all fitting into his concept of
the "Periodic Table" in which
Chlorine is just one element
that can be found.
Learn about what is
Chlorine
with these fast facts...
These articles
contain facts and information relating to Chlorine and each
of the other elements including the
Periodic Symbol, group, classification, properties and atomic
number which is often referred to as the
Periodic Table Number.
Test your knowledge of chemistry and the Periodic Table by
completing the Element Symbols and Atomic Numbers on our
Blank Periodic Table.
Chemistry students will also find a helpful section on
Chemical Formulas. |
