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Safety Information

295132

Sigma-Aldrich

Chlorine

≥99.5%

Synonym(s):

Chlorine gas

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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

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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
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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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

PDSCL

Deleterious substance

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

295132-BULK:
295132-500G:
295132-PZ:
295132-500G-EU:
295132-454G-PW:
295132-454G:

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Certificates of Analysis (COA)

Lot/Batch Number
MKCP5069
MKCN8715
MKCM6670
STBJ2471
MKCL6854

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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)
Suhail Ahmad et al.
Environmental research, 133, 20-26 (2014-06-07)
Invasive aspergillosis due to triazole-resistant Aspergillus fumigatus, a common airborne fungal pathogen, has emerged in some European and Asian countries, likely due to exposure to azole fungicides in the environment. This study determined the occurrence of triazole-resistant A. fumigatus in
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