Skip to Content
Merck

295132

Chlorine

≥99.5%

Synonym(s):

Chlorine gas

Sign In to View Organizational & Contract Pricing.

Select a Size

All Photos(1)

About This Item

Empirical Formula (Hill Notation):
Cl2
CAS Number:
7782-50-5
Molecular Weight:
70.91
UNSPSC Code:
12142100
NACRES:
NA.22
PubChem Substance ID:
24857762
EC Number:
231-959-5
Beilstein/REAXYS Number:
3902968
MDL number:
MFCD00010934
assay:
≥99.5%
bp:
−34 °C (lit.)
vapor pressure:
4800 mmHg ( 20 °C)

Product Name

Chlorine, ≥99.5%

InChI key

KZBUYRJDOAKODT-UHFFFAOYSA-N

InChI

1S/Cl2/c1-2

SMILES string

ClCl

vapor density

2.48 (vs air)

vapor pressure

4800 mmHg ( 20 °C)

assay

≥99.5%

form

gas (compressed)

resistivity

1E9 μΩ-cm, 20°C

pH

1.8 (20 °C, 6.4 g/L)

bp

−34 °C (lit.)

mp

−101 °C (lit.)

Quality Level

100

Looking for similar products? Visit Product Comparison Guide

Application

Chlorine gas has been used to generate chlorine atoms via photolysis for molecular halogen photochemical experiments.

It can be used:
  • As a reactant for the extraction of gold from an alluvial material via a pyrometallurgical process.
  • To synthesize carbide-derived carbons (CDC) from zirconium carbide.

Other Notes

See Technical Information Bulletin AL-151 Gas Regulators: Selection, Installation, and Operation

Packaging

Supplied in a carbon steel lecture bottle with a CGA180M/CGA110F needle valve installed.

Compatible with the following:
  • Aldrich® lecture-bottle station systems
  • Aldrich® lecture-bottle gas regulators

Legal Information

Aldrich is a registered trademark of Sigma-Aldrich Co. LLC

signalword

Danger

Hazard Classifications

Acute Tox. 2 Inhalation - Aquatic Acute 1 - Eye Irrit. 2 - Ox. Gas 1 - Press. Gas Compr. Gas - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

2A - Gases

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, multi-purpose combination respirator cartridge (US)

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKCX8193
MKCX0958
MKCW5160
MKCV4001
MKCV8133

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Zilong Mi et al.
Journal of environmental sciences (China), 37, 200-205 (2015-11-18)
Disinfectants are commonly applied to control the growth of microorganisms in drinking water distribution systems. However, the effect of disinfection on drinking water microbial community remains poorly understood. The present study investigated the impacts of different disinfectants (chlorine and chloramine)
Superactivated carbide-derived carbons with high hydrogen storage capacity.
Sevilla M, et al.
Energy & Environmental Science, 3(2), 223-227 (2010)
Halogenation processes of secondary organic aerosol and implications on halogen release mechanisms
Ofner J, et al.
Atmospheric Chemistry and Physics, 12(13), 5787-5806 (2012)
Gold extraction by chlorination using a pyrometallurgical process
Ojeda M W, et al.
Minerals Engineering, 22(4), 409-411 (2009)
Xinming Li et al.
Nanoscale, 5(5), 1945-1948 (2013-01-30)
We demonstrated the p-type chemical doping by chlorine and nitrate anions to enhance the Schottky junction in the solar cell. Nitrate ions were found to be more effective for reducing the sheet resistance and enlarging the work function of graphene
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service