molecular chlorine

Cl2

CAS7782-50-5

Danger

Consulting for molecular chlorine

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Identification

CAS Number: 7782-50-5
EC Number: 231-959-5
UN Number: 1017
Index Number: 017-001-00-7
PubChem CID: 24526

Physical-chemical properties

Molecular Formula: Cl2
Molar Mass: 70.90 g/mol
IUPAC Name: molecular chlorine

Chemical Identifiers

InChI: InChI=1S/Cl2/c1-2
InChI Key: KZBUYRJDOAKODT-UHFFFAOYSA-N

Overview

molecular chlorine (CAS: 7782-50-5) is a chemical compound widely used in industry. The molecular formula is Cl2. The molar mass is 70.90 g/mol.

Safety & Classification

Danger

Classification:

Ox. Gas 1; Press. Gas; Acute Tox. 3 *; STOT SE 3; Skin Irrit. 2; Eye Irrit. 2; Aquatic Acute 1

GHS Pictograms

Flame Over Circle

GHS03

Oxidizing. May cause or intensify fire.

Gas Cylinder

GHS04

Gases under pressure. May explode if heated.

Skull and Crossbones

GHS06

Acute toxicity. Fatal if swallowed, in contact with skin, or if inhaled.

Environment

GHS09

Environmental hazard. Toxic to aquatic life with long lasting effects.

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H270

May cause or intensify fire; oxidiser.

H331

Toxic if inhaled.

H335

May cause respiratory irritation.

H315

Causes skin irritation.

H319

Causes serious eye irritation.

H400

Very toxic to aquatic life.

Classification according to CLP Regulation (EC) No 1272/2008. The complete list of hazard and precautionary statements can be found in the Safety Data Sheet (SDS).

First Aid Measures

Inhalation

Toxic

Measures if vapours or dust are inhaled

First Aid Actions

+P304IF INHALED:
+P340Remove person to fresh air and keep comfortable for breathing.
+P311Call a POISON CENTER/doctor.

Related hazard statements:

H331 H335

Skin Contact

Irritant

Measures if substance contacts the skin

First Aid Actions

+P302IF ON SKIN:
+P352Wash with plenty of water.
+P361Take off immediately all contaminated clothing.
+P313Get medical advice/attention.

Related hazard statements:

H315

Eye Contact

Irritant

Measures if substance gets into the eyes

First Aid Actions

+P305IF IN EYES:
+P351Rinse cautiously with water for several minutes.
+P338Remove contact lenses, if present and easy to do. Continue rinsing.
+P313Get medical advice/attention.

Related hazard statements:

H319

General Measures

Emergency 112 | Poison Control: +49 30 19240 (DE), +33 1 45 42 59 59 (FR), +31 30 274 88 88 (NL)

First aid measures are based on CLP classification and associated P-statements. They do not replace the Safety Data Sheet (SDS). In case of emergency, always consult the full SDS and a physician.

Transport (ADR)

UN Number	1017
ADR Class	2
Packing Group
Tunnel Code	C/D
Proper Shipping Name	Chlor, unter Druck verflüssigt
Marine Pollutant	No

Frequently Asked Questions

What is molecular chlorine?

molecular chlorine (CAS 7782-50-5) is a chemical substance with the formula Cl2 used in various industrial applications.

What are the properties of molecular chlorine?

molecular chlorine has a molar mass of 70.90 g/mol. It is classified as Ox. Gas 1; Press. Gas; Acute Tox. 3 *; STOT SE 3; Skin Irrit. 2; Eye Irrit. 2; Aquatic Acute 1. See the technical data above for more details.

How to store molecular chlorine safely?

molecular chlorine should be stored according to the Safety Data Sheet instructions. Follow the GHS labeling and keep the substance in a cool, dry and well-ventilated place.

Is molecular chlorine dangerous?

molecular chlorine carries the signal word "Danger". 4 GHS pictograms apply. Always follow the safety instructions in the data sheet.

Where can I buy molecular chlorine?

You can order molecular chlorine (CAS 7782-50-5) from OYSI. We deliver across Europe and offer technical consulting as well as complete compliance documentation.