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HomeProduct name list2,6-Dichlorophenyl isocyanate

2,6-Dichlorophenyl isocyanate

  • CAS NO.:39920-37-1
  • Empirical Formula: C7H3Cl2NO
  • Molecular Weight: 188.01
  • MDL number: MFCD00002003
  • EINECS: 254-699-4
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2023-04-23 13:52:06
2,6-Dichlorophenyl isocyanate Structural

What is 2,6-Dichlorophenyl isocyanate?

Chemical properties

white to yellow crystalline mass

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

The Uses of 2,6-Dichlorophenyl isocyanate

2,6-Dichlorophenyl isocyanate has been used in the preparation of pyridine-urea analog.

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

Properties of 2,6-Dichlorophenyl isocyanate

Melting point: 43-45°C
Boiling point: 101°C 5mm
Density  1,015 g/cm3
refractive index  1.5500 (estimate)
Flash point: 76 °C
solubility  soluble in Toluene
form  powder to lump to clear liquid
color  White or Colorless to Almost white or Almost colorless
Water Solubility  decomposes
Sensitive  Moisture Sensitive
BRN  608323
CAS DataBase Reference 39920-37-1(CAS DataBase Reference)
EPA Substance Registry System Benzene, 1,3-dichloro-2-isocyanato- (39920-37-1)

Safety information for 2,6-Dichlorophenyl isocyanate

Signal word Danger
Pictogram(s)
ghs
Skull and Crossbones
Acute Toxicity
GHS06
ghs
Health Hazard
GHS08
GHS Hazard Statements H300:Acute toxicity,oral
H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
H330:Acute toxicity,inhalation
H334:Sensitisation, respiratory
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P311:Call a POISON CENTER or doctor/physician.
P320:Specific treatment is urgent (see … on this label).
P330:Rinse mouth.
P301+P310:IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405:Store locked up.

Computed Descriptors for 2,6-Dichlorophenyl isocyanate

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