PERIODIC TABLE

Chlorine

Atomic No. 17 Cl Chlorine

About Chlorine

Chlorine is a halogen with atomic number 17 that normally exists as a reactive diatomic gas. Its compounds include metal chlorides used as chemical reagents and precursors, while chlorine itself is important in the manufacture of polymers such as PVC. Tin(II) chloride, for example, is used as a reducing agent in chemical processing.

Properties

Atomic Number
17
Atomic Symbol
Cl
Atomic Mass
35.453
CAS No.
7782-50-5
Density
3.214 g/l
Series
halogen
Melting Point
-101.5°C
Boiling Point
-34.04°C
Thermal Conductivity
0.000089 W/cm °C
Heat of Fusion
3.2 kJ/mol
Heat of Vaporization
10.2 kJ/mol
Electronegativity
3.16 pauling
Crystal Structure
Orthorhombic
Electrical Conductivity
0.01 S/m

Chlorine Products

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