p-Xenylcarbimide

  • 4-Biphenyl isocyanate
  • 4-Biphenylyl isocyanate
  • 4-Phenylphenyl isocyanate
  • p-Diphenyl isocyanate
Formula
C6H5C6H4NCO
Structure
Uses
Used as a a reagent for the identification of hydroxy compounds, with which it gives crystalline derivatives of definite melting point.

Registry Numbers and Inventories.
CAS
92-95-5
20/21/22 36/37/38
UN (DOT)
3335
Merck
13,10130
Beilstein/Gmelin
389296
Beilstein Reference
3-12-00-03182

Properties.
Formula
C13H9NO
Formula mass
195.22
Melting point, °C
59 - 62
Boiling point, °C
283
Solubility in water
Insoluble
Heat of vaporization
55.4 kJ/mol

Hazards and Protection.
Storage
Keep tightly closed. Store at 2-8 C
Protection
Wear appropriate government approved respirator, chemical-resistant gloves, safety goggles, other protective clothing.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pickup is complete.
Stability
Stable at normal temperatures and pressures. Sensitive to moisture.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, Carbon dioxide, Nitrogen oxides, Hydrogen cyanide.

Fire.
Flash Point,°C
115
Fire fighting
Extinguish using Water spray. Carbon dioxide, dry chemical powder, or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Fire potential
May burn but does not ignite readily.
Hazards
Emits toxic fumes under fire conditions.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Exposure effects
Harmful. Harmful by inhalation, in contact with skin and if swallowed. Irritating to eyes, respiratory system and skin. Lachrymator. Possible sensitizer.
   Inhalation
Inhalation of material may be harmful.
   Skin
Contact may cause burns.
   Eyes
See Skin.

First aid
 
   Ingestion
If swallowed, wash out mouth with water provided person is conscious. Call a physician.
   Inhalation
If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.
   Skin
Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes.
   Eyes
Assure adequate flushing of the eyes by separating the eyelids with fingers.

Transport.
UN number
3335
Response guide
Hazard class
9
Packing Group
III