2-Chlorostyrene Chemical Properties

Melting point:

-63.1 °C

Boiling point:

58-60 °C/7 mmHg (lit.)

Density 

1.08 g/mL at 25 °C (lit.)

refractive index 

n20/D 1.565(lit.)

Flash point:

138 °F

storage temp. 

2-8°C

form 

Liquid

color 

Colorless to Almost colorless

Water Solubility 

Insoluble in water.

BRN 

2038863

Exposure limits

ACGIH: TWA 50 ppm; STEL 75 ppm
NIOSH: TWA 50 ppm(285 mg/m3); STEL 75 ppm(428 mg/m3)

CAS DataBase Reference

2039-87-4(CAS DataBase Reference)

NIST Chemistry Reference

2-Chlorostyrene(2039-87-4)

EPA Substance Registry System

o-Chlorostyrene (2039-87-4)

Safety Information

Hazard Codes 

T,Xi

Risk Statements 

45-20/22-36/37/38

Safety Statements 

53-23-36/37/39-45-37/39-26-36

RIDADR 

UN 1993 3/PG 3

OEB

A

OEL

TWA: 50 ppm (285 mg/m3), STEL: 75 ppm (428 mg/m3)

WGK Germany 

3

RTECS 

WL4160000

Hazard Note 

Harmful

HazardClass 

3

PackingGroup 

III

HS Code 

29039990

Hazardous Substances Data

2039-87-4(Hazardous Substances Data)

MSDS

• Language:English Provider:2-Chlorostyrene
• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

2-Chlorostyrene Usage And Synthesis

Chemical Properties

2-Chlorostyrene, also called o-Chlorostyrene, is a flammable liquid that ranges in color from colorless to light yellow. It is used in the manufacture of polychlorostyrene which is a clear, colorless plastic with good foaming, heat distortion and flame-retardant properties.

Uses

2-Chlorostyrene is an important raw material and intermediate used in organic Synthesis, pharmaceuticals, agrochemicals and dyestuff.

Preparation

o-Chlorostyrene is commercially produced as a monomer from o-chloroethylbenzene by an oxidation technique. p-Chlorostyrene is also produced as a mixture with o-chlorostyrene.

Air & Water Reactions

Highly flammable. Insoluble in water.

Reactivity Profile

2-Chlorostyrene may be sensitive to heat or prolonged exposure to light. 2-Chlorostyrene may polymerize.

Hazard

Central nervous system impairment and peripheral neuropathy.

Health Hazard

By analogy to styrene, ochlorostyrene is expected to cause central nervous system depression at extremely high concentrations and possibly irritation of the eyes, nose, and mucous membranes.
There are no reports of adverse effects in humans.

Fire Hazard

2-Chlorostyrene is combustible.

Safety Profile

A skin and eye irritant. When heated to decomposition it emits toxic fumes of Cl-. See also CHLORINATED HYDROCARBONS, AROMATIC .

Potential Exposure

In organic synthesis; in the preparation of specialty polymers.

Shipping

UN1993 Flammable liquids, n.o.s., Hazard Class: 3; Labels: 3-Flammable liquid, Technical Name Required.

Incompatibilities

Contact with elevated temperatures, strong oxidizers, strong bases; or acids may cause fire or explosion. May form peroxides; explosive polymerization may occur.

2-Chlorostyrene(2039-87-4)Related Product Information

• 2-Chlorobenzonitrile
• 2-Chlorobenzaldehyde
• TRANS-BETA-METHYLSTYRENE
• 2-Chlorophenylacetic acid
• Vinylbenzyl chloride
• CITRATE SYNTHASE
• 2-Chlorobenzoic acid
• 2-Chlorophenol
• Styrene
• 2-Chlorochalcone
• Mordant Blue 29
• OCTACHLOROSTYRENE
• 3-Chlorostyrene, stabilized, 98%,3-CHLOROSTYRENE , STABILIZED WITH 0.1% 4-TERT-BUTYLCATECHOL,3-CHLOROSTYRENE,meta-chlorostyren
• TRANS-2,4-DICHLOROCINNAMIC ACID
• 2,6-DICHLOROCINNAMIC ACID
• 2,6-DICHLOROSTYRENE
• 2-Chlorophenyl cyclopentyl ketone
• 2-CHLORO-4'-FLUOROCHALCONE