Product Identification

Product Name

N,N'-Diphenylurea

Synonyms

1, 3-Diphenylurea
1,3-Di(phenyl)urea
1,3-Diphenylcarbamide
Carbanilide
N-Phenyl-N'-phenylurea

CAS

102-07-8

Formula

C13H12N2O

Molecular Weight

212.25

EINECS

203-003-7

RTECS

FD9800000

RTECS Class

Other

Merck

13,1792

Beilstein/Gmelin

782650

Beilstein Reference

4-12-00-00741

Physical and Chemical Properties

Appearance

White crystalline solid.

Solubility in water

Slightly soluble.

Melting Point

240

Boiling Point

410

Vapor Pressure

0.011 (25 C)

Density

1.23 g/cm3

Partition Coefficient

2.86

Heat Of Combustion

-6752 kJ/mol

Usage

In organic synthesis.

First Aid Measures

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.

Handling and Storage

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.

Hazards Identification

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.

EC Risk Phrase

R 22

EC Safety Phrase

S 22 36/37

Exposure Controls/Personal Protection

Personal Protection

Protective gloves, clothing and goggles.

Respirators

NIOSH/MSHA approved respirator.

Poison Class

4

Fire Fighting Measures

Fire Fighting

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

Accidental Release Measures

Small spills/leaks

Evacuate area. Wear approprate protective equipment. Sweep up and place in a container for later disposal.

Stability and Reactivity

Stability

Stable at normal temperatures and pressures.

Incompatibilities

Strong bases, strong acids and strong oxidizing agents.

Decomposition

Produces toxic fumes.