BENZAL CHLORIDE Chemical Properties

Melting point:

-16 °C

Boiling point:

207 °C

Density 

1.254

vapor pressure 

60Pa at 25℃

refractive index 

1.5500

Flash point:

92°C

Water Solubility 

Insoluble in water

form 

clear liquid

color 

Very refractive liquid

Merck 

14,1057

BRN 

1099407

Stability:

Stable, but moisture sensitive. Combustible. Incompatible with strong bases, strong oxidizing agents, most metals. Readily hydrolyzes in acidic or basic conditions.

LogP

2.97

CAS DataBase Reference

98-87-3(CAS DataBase Reference)

IARC

2A (Vol. 29, Sup 7, 71) 1999

EPA Substance Registry System

Benzal chloride (98-87-3)

Safety Information

Hazard Codes 

T

Risk Statements 

22-23-37/38-40-41

Safety Statements 

23-26-36/37/39-45-38-36/37

RIDADR 

1886

RTECS 

CZ5075000

HazardClass 

6.1

PackingGroup 

II

HS Code 

29036990

Hazardous Substances Data

98-87-3(Hazardous Substances Data)

Toxicity

LD50 orl-rat: 3249 mg/kg NTIS** PB214-270

MSDS

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BENZAL CHLORIDE Usage And Synthesis

Chemical Properties

colourless oily liquid

Chemical Properties

Benzal chloride is a combustible, fuming, colorless, oily liquid; fumes on exposure to air. Faint, pungent odor.

Uses

α,α-Dichlorotoluene has been useds as initiator during the atom transfer radical polymerization (ATRP) of styrene and methyl methacrylate.

Uses

manufacture of benzaldehyde, cinnamic acid.

Synthesis Reference(s)

The Journal of Organic Chemistry, 15, p. 795, 1950 DOI: 10.1021/jo01150a012
Tetrahedron Letters, 9, p. 4951, 1968

General Description

A colorless oily liquid with a faint aromatic odor. Insoluble in water and denser than water. Strongly irritates skin and eyes. Used to manufacture dyes.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

BENZAL CHLORIDE is incompatible with strong oxidizers and strong bases. BENZAL CHLORIDE readily hydrolyzes under acid or alkaline conditions. BENZAL CHLORIDE reacts with metals (except nickel and lead). .

Hazard

Strong irritant and lachrymator. Probable carcinogen.

Health Hazard

Acute: vapors are highly irritating to eyes. May be fatal if inhaled, swallowed, or absorbed through skin.

Fire Hazard

Fire may produce irritating or poisonous gases. Runoff from fire control water may give off poisonous gases and may cause pollution. Cylinder may explode in the heat of fire. Reacts with water to release hydrochloric acid.

Safety Profile

Confirmed carcinogen with experimental carcinogenic and neoplastigenic data. Poison by inhalation. Moderately toxic by ingestion. A strong irritant and lachrymator. Causes central nervous system depression. Mutation data reported. When heated to decomposition it emits toxic fumes of Cl-. See also CHLORINATED HYDROCARBONS, AROMATIC.

Potential Exposure

Benzal chloride is used almost exclusively for the manufacture of benzaldehyde. It can also be used to prepare cinnamic acid and benzoyl chloride.

Shipping

UN1886 Benzylidene chloride, Hazard class 6.1; Label 6.1—Poisonous materials.

Incompatibilities

May form explosive mixture with air. Reacts with water, air, or heat, forming fumes of hydrochloric acid. Reacts (possibly violently) with acids, bases, strong oxidizers; many metals; potassium, sodium, aluminum. Attacks plastics and coatings.

Waste Disposal

Incineration @ 816 C, 0.5 second minimum for primary combustion; 1204 C, 1.0 second for secondary combustion; elemental chlorine formation may be alleviated through injection of steam or methane into the combustion process.

BENZAL CHLORIDE(98-87-3)Related Product Information

• 2,4-DICHLOROBENZOTRICHLORIDE
• 4-(DICHLOROMETHYL)BENZONITRILE
• Diphenyldichloromethane
• 3-FLUOROBENZOTRICHLORIDE
• ALPHA,ALPHA,ALPHA,ALPHA',ALPHA',ALPHA'-HEXACHLORO-M-XYLENE
• 2-CHLORO-6-FLUOROBENZOTRICHLORIDE
• 2-FLUOROBENZAL CHLORIDE
• alpha,alpha,alpha',alpha'-Tetrachloro-p-xylene
• 3-(DICHLOROMETHYL)BENZOYL CHLORIDE
• 4-FLUOROBENZOTRICHLORIDE
• 9,9-DICHLOROFLUORENE
• 2-Chlorobenzotrichloride
• P-TRICHLOROMETHYLTHIOBENZAL CHLORIDE
• ALPHA,ALPHA,2-TRICHLORO-6-FLUOROTOLUENE
• 3-CHLORO BENZOTRICHLORIDE
• 4-FLUOROBENZAL CHLORIDE
• ALPHA,ALPHA,2,4-TETRACHLOROTOLUENE
• 1-NITRO-3-(TRICHLOROMETHYL)BENZENE