Product Identification

Product Name

N-Methylacetamide

Synonyms

Methylacetamide
Monomethylacetamide
n-Monomethylacetamide

CAS

79-16-3

Formula

C3H7NO

Molecular Weight

73.09

EINECS

201-182-6

RTECS

AC5960000

RTECS Class

Mutagen; Reproductive Effector

Beilstein/Gmelin

1071255

Beilstein Reference

4-04-00-00176

EC Index Number

616-053-00-3

EC Class

Toxic for reproduction Category 2

Physical and Chemical Properties

Appearance

Needle-like crystals.

Solubility in water

Miscible

Melting Point

27 - 30

Boiling Point

204

Vapor Pressure

0.4 (40 C)

Density

1.043 g/cm3 (-23.15 C)

Partition Coefficient

-1.05

Heat Of Vaporization

69.87 kJ/mol

Heat Of Combustion

-1862 kJ/mol

Refractive Index

1.4301 (20 C)

First Aid Measures

Ingestion

If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.

Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.

Skin

Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.

Eyes

Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Handling and Storage

Storage

Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed.

Handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.

Exposure Controls/Personal Protection

Personal Protection

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.

Respirators

Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

Exposure Effects

The toxicological properties of this material have not been investigated.

Poison Class

4

Fire Fighting Measures

Flash Point

108

Autoignition

490

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.

Upper exp. limit

18.1

Lower exp. limit

3.2

Accidental Release Measures

Small spills/leaks

Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Provide ventilation.

Stability and Reactivity

Disposal Code

1

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents.

Decomposition

Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, nitrogen.

Transport Information

UN Number

2811

HS Code

2924 19 00

Hazards Identification

EC Risk Phrase

R 61

EC Safety Phrase

S 53 45

UN (DOT)

2811