Product Identification

Product Name

N-Methylurea

Synonyms

1-Methylurea
Monomethylurea
N-Methylurea

CAS

598-50-5

Formula

C2H6N2O

Molecular Weight

74.08

EINECS

209-935-0

RTECS

YT7175000

RTECS Class

Agricultural Chemical and Pesticide; Mutagen

Beilstein/Gmelin

878189

Beilstein Reference

4-04-00-00205

Physical and Chemical Properties

Appearance

White, crystalline needles.

Solubility in water

1000 g/L

Melting Point

98 - 102

Boiling Point

240

Vapor Pressure

0.2 (101 C)

Density

1.204 g/cm3

Partition Coefficient

-1.05

Heat Of Vaporization

71.4 kJ/mol

Heat Of Combustion

-1312 kJ/mol

First Aid Measures

Ingestion

Do NOT induce vomiting. Allow the victim to rinse his mouth and then to drink 2-4 cupfuls of water, and seek medical advice.

Inhalation

Remove from exposure to fresh air immediately.

Skin

Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.

Eyes

Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower lids.

Handling and Storage

Storage

Store in a cool, dry place. Keep container closed when not in use.

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

Harmful if swallowed. Danger of cumulative effects.

Hazards

During a fire, irritating and highly toxic gasesmay be generated by thermal decomposition or combustion.

EC Safety Phrase

S 22 24/25

Exposure Controls/Personal Protection

Personal Protection

Wear appropriate safety goggles, protective clothing and gloves.

Respirators

Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.

Poison Class

4

Fire Fighting Measures

Autoignition

> 240

Fire Fighting

Wear a self-contained breathing apparatus inpressure-demand, MSHA/NIOSH (approved or equivalent), and fullprotective gear. In case of fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.

Accidental Release Measures

Small spills/leaks

Evacuate area and ventilate. Wear protective equipment. If required, use an inert absrobent. Sweep up and place in an appropriate container for disposal. Wash contaminated surfaces.

Stability and Reactivity

Disposal Code

3

Incompatibilities

Keep away from strong oxidizing agents.

Stability

Stable under normal temperatures and pressures.

Transport Information

HS Code

2924 19 00