N,N'-Diphenylurea

  • Carbanilide
Formula
C6H5NHCONHC6H5
Structure
Description
White crystalline solid.
Uses
In organic synthesis.

Registry Numbers and Inventories.
CAS
102-07-8
EC (EINECS/ELINCS)
203-003-7
S 22 36/37
RTECS
FD9800000
RTECS class
Other
Merck
13,1792
Beilstein/Gmelin
782650
Beilstein Reference
4-12-00-00741
Swiss Giftliste 1
G-8202
Canada DSL/NDSL
DSL
US TSCA
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C13H12N2O
Formula mass
212.25
Melting point, °C
240
Boiling point, °C
410
Vapor pressure, mmHg
0.011 (25 C)
Density
1.23 g/cm3
Solubility in water
Slightly soluble.
Partition coefficient, pKow
2.86
Heat of combustion
-6752 kJ/mol

Hazards and Protection.
Storage
Keep in a tightly closed container, in a cool dry location. Store only with compatible chemicals.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Protective gloves, clothing and goggles.
Respirators
NIOSH/MSHA approved respirator.
Small spills/leaks
Evacuate area. Wear approprate protective equipment. Sweep up and place in a container for later disposal.
Stability
Stable at normal temperatures and pressures.
Incompatibilities
Strong bases, strong acids and strong oxidizing agents.
Decomposition
Produces toxic fumes.

Fire.
Fire fighting
Use NIOSH/MSHA approved SCBA and full protective equipment. Fight fire with carbon dioxide, dry chemical powder or water spray.

Health.
Poison_Class
4
Exposure effects
   Ingestion
May be harmful if ingested. Causes irritation.
   Inhalation
May be harmful if inhaled. Causes irritation.
   Skin
May cause irritation. May be harmful on contact.
   Eyes
May cause irritation.

First aid
 
   Ingestion
The possible benefit of early removal of some ingested material by cautious gastric lavage must be weighed against potential complications of bleeding or perforation. Activated charcoal activated charcoal binds most toxic agents and can decrease their systemic absorption if administered soon after ingestion. Activated charcoal: administer charcoal as a slurry (240 ml water/30 g charcoal). Usual dose: 25 to 100 g in adults/adolescents.
   Inhalation
Move patient to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation, bronchitis, or pneumonitis. Administer oxygen and assist ventilation as required. Treat bronchospasm with beta2 agonist and corticosteroid aerosols.
   Skin
Flush with water for 15 minutes. If no burns have occurred, use soap and water to clean area.
   Eyes
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.

Transport.