3,5-Dichlorophenyl isocyanate Property

Melting point:

32-34 °C (lit.)

Boiling point:

243 °C

Density 

1.38 g/mL at 25 °C (lit.)

vapor pressure 

4.7-8.1Pa at 25℃

refractive index 

1.6000 (estimate)

Flash point:

>230 °F

storage temp. 

-20°C Freezer

solubility 

decomposes

form 

Low Melting Solid

color 

White to slightly yellow

Water Solubility 

decomposes

Sensitive 

Moisture Sensitive

BRN 

510282

LogP

3.88

CAS DataBase Reference

34893-92-0(CAS DataBase Reference)

NIST Chemistry Reference

3,5-Dichlorophenyl isocyanate(34893-92-0)

EPA Substance Registry System

3,5-Dichlorophenyl isocyanate (34893-92-0)

Safety

Hazard Codes 

T,T+

Risk Statements 

23/24/25-36/37/38-42-26

Safety Statements 

26-27-36/37/39-45-38-37/39-28A

RIDADR 

UN 2250 6.1/PG 2

WGK Germany 

3

F 

19-21

TSCA 

Yes

HazardClass 

6.1

PackingGroup 

II

HS Code 

29291090

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H315Causes skin irritation

H317May cause an allergic skin reaction

H319Causes serious eye irritation

H330Fatal if inhaled

H334May cause allergy or asthma symptoms or breathing difficulties if inhaled

H335May cause respiratory irritation

H411Toxic to aquatic life with long lasting effects

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

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

3,5-Dichlorophenyl isocyanate Chemical Properties,Usage,Production

Chemical Properties

white to slightly yellow low melting solid

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

Uses

3,5-Dichlorophenyl isocyanate is used as an intermediate for medicine and in iprodione. It is also useful for proteomic research.

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