Skip to Content
Merck
All Photos(1)

Key Documents

View All Documentation

295132

Sigma-Aldrich

Chlorine

≥99.5%

Synonym(s):

Chlorine gas

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Empirical Formula (Hill Notation):
Cl2
CAS Number:
7782-50-5
Molecular Weight:
70.91
Beilstein:
3902968
EC Number:
231-959-5
MDL number:
MFCD00010934
UNSPSC Code:
12142100
PubChem Substance ID:
24857762
NACRES:
NA.22

vapor density

2.48 (vs air)

Quality Level

100

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.)

SMILES string

ClCl

InChI

1S/Cl2/c1-2

InChI key

KZBUYRJDOAKODT-UHFFFAOYSA-N

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.

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

Other Notes

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

Legal Information

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

also commonly purchased with this product

Product No.
Description
Pricing

control valve

Product No.
Description
Pricing

hose barb

Product No.
Description
Pricing

purge valve

Product No.
Description
Pricing

recommended

Product No.
Description
Pricing

regulator

Product No.
Description
Pricing

Signal Word

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 Code

2A - Gases

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKCV4001
MKCV8133
MKCS0628
MKCS9242
MKCS5129

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

Gold extraction by chlorination using a pyrometallurgical process
Ojeda M W, et al.
Minerals Engineering, 22(4), 409-411 (2009)
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)
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)
Marie Deborde et al.
Water research, 42(1-2), 13-51 (2007-10-05)
Numerous inorganic and organic micropollutants can undergo reactions with chlorine. However, for certain compounds, the expected chlorine reactivity is low and only small modifications in the parent compound's structure are expected under typical water treatment conditions. To better understand/predict chlorine
View All Related Papers

Articles

MeOBIPHEP

Solvias MeOBIPHEP Ligands: State-of-the-art atropisomeric MeOBIPHEP ligands, also referred to as MeO-BIPHEP, originally developed by Roche, have an extraordinarily broad performance profile for many synthetic applications due to their modular ligand design.

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