2,3-Dichlorophenyl isocyanate Property

Boiling point:

58°C 1mm

Density 

1.424 g/mL at 25 °C(lit.)

refractive index 

1.5774-1.5794

Flash point:

>110°C

storage temp. 

0-6°C

form 

clear liquid

color 

Colorless to Light yellow to Light orange

Water Solubility 

decomposes

Sensitive 

Moisture Sensitive

BRN 

4669222

CAS DataBase Reference

41195-90-8(CAS DataBase Reference)

EPA Substance Registry System

Benzene, 1,2-dichloro-3-isocyanato- (41195-90-8)

Safety

Hazard Codes 

T

Risk Statements 

42-36/37/38-23/24/25

Safety Statements 

45-38-36/37/39-28A-26-23

RIDADR 

2250

HazardClass 

6.1

PackingGroup 

II

HS Code 

29291000

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H300Fatal if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H330Fatal if inhaled

H334May cause allergy or asthma symptoms or breathing difficulties if inhaled

H335May cause respiratory irritation

Precautionary statements

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P320Specific treatment is urgent (see … on this label).

P330Rinse mouth.

P405Store locked up.

2,3-Dichlorophenyl isocyanate Chemical Properties,Usage,Production

Chemical Properties

clear colorless liquid after melting

Chemical Properties

The dichlorophenyl isocyanates are combustible, crystalline (sugar or sand-like) solids. In general, they are white to yellow in color, but the 1,4-dichloro-2-phenyl isomer is white to light green. Their flash points are generally .113C but that of the 1,3-dichloro-2-phenyl isomer is reported as 77C. These chemicals are insoluble in water, and some may be reactive. 1,2-dichloro-4-isomer (CAS 102-36-3) is the isomer of regulatory focus

Potential Exposure

Those materials used as chemical intermediates

Shipping

UN2250 Dichlorophenyl isocyanates, Hazard Class: 6.1; Labels: 6.1-Poisonous materials.

Incompatibilities

May form explosive mixture with air. Isocyanates are highly flammable and reactive with many compounds, even with themselves. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Reaction with moist air, water or alcohols may form amines and insoluble polyureas and react exothermically, releasing toxic, corrosive or flammable gases, including carbon dioxide; and, at the same time, may generate a violent release of heat increasing theconcentration of fumes in the air. Incompatible with amines, aldehydes, alkali metals, ammonia, carboxylic acids, caprolactum, alkaline materials, glycols, ketones, mercaptans, hydrides, organotin catalysts, phenols, strong acids, strong bases, strong reducing agents such as hydrides, urethanes, and ureas. Elevated temperatures or contact with acids, bases, tertiary amines, and acylchlorides may cause explosive polymerization. Contact with metals may evolve flammable hydrogen gas. Attacks some plastics, rubber, and coatings.

Waste Disposal

Combustion in an incinerator equipped with afterburner and fume scrubber