Product Identification

Product Name

4-Methylacetonitrile

Synonyms

(p-Methylphenyl)acetonitrile
2-(4-Methylphenyl)acetonitrile
4-Methylbenzeneacetonitrile
4-Methylbenzyl cyanide
4-Methylphenylacetonitrile
p-Methylbenzyl cyanide

CAS

2947-61-7

Formula

C9H9N

Molecular Weight

131.18

EINECS

220-963-2

Beilstein/Gmelin

1099645

Beilstein Reference

4-09-00-01796

EC Class

irritant

Physical and Chemical Properties

Appearance

Colorless - light yellow liquid.

Solubility in water

Slightly soluble

Melting Point

18

Boiling Point

243

Vapor Pressure

.03

Density

0.9922 g/cm3 (22 C)

Partition Coefficient

1.91

Heat Of Vaporization

48.0 kJ/mol

Refractive Index

1.5190 (20 C)

First Aid Measures

Ingestion

Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.

Inhalation

Remove from exposure to fresh air immediately.

Skin

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

Eyes

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

Handling and Storage

Storage

Store in a cool, dry place. Store in a tightly closed container.

Handling

Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Use only in a chemical fume hood.

Hazards Identification

Ingestion

Harmful if swallowed.

Inhalation

Harmful if inhaled.

Skin

May cause skin irritation. Harmful if absorbed through the skin.

Eyes

Lachrymator.

Hazards

When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.

EC Risk Phrase

R 20/21/22 36

EC Safety Phrase

S 26 36/37/39

UN (DOT)

2810

Exposure Controls/Personal Protection

Personal Protection

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.

Fire Fighting Measures

Flash Point

106

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.

Fire Potential

Combustible material: may burn but does not ignite readily.

Accidental Release Measures

Small spills/leaks

Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container.

Stability and Reactivity

Disposal Code

6

Stability

No data.

Incompatibilities

Strong oxidizing agents, strong reducing agents, strong acids, strong bases.

Decomposition

Nitrogen oxides, carbon monoxide, carbon dioxide.

Combustion Products

Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number

2810

Hazard Class

6.1

Packing Group

I; II; III

HS Code

2926 90 95