Product Identification

Product Name

2-Methyl butyric acid

Synonyms

2-Methylbutanoic acid

CAS

116-53-0

Formula

C5H10O2

Molecular Weight

102.13

EINECS

204-145-2

RTECS

EK7897000

RTECS Class

Other

Beilstein/Gmelin

1720486

Beilstein Reference

0-02-00-00305

EC Class

harmful, corrosive

Physical and Chemical Properties

Solubility in water

20 g/L (20 C)

Melting Point

-70

Boiling Point

177

Vapor Pressure

7.5 (20 C)

Density

0.938 g/cm3 (20 C)

pKa/pKb

4.8(at 25℃) (pKa)

Refractive Index

1.41 (20 C)

First Aid Measures

Ingestion

Seek medical assistance.

Inhalation

Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult.

Skin

Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin.

Eyes

Immediately flush with running water for at least 20 minutes.

Hazards Identification

Ingestion

See Inhalation.

Inhalation

TOXIC; inhalation, ingestion, or skin contact with material may cause severe injury or death. Effects of contact or inhalation may be delayed.

Skin

Contact with molten substance may cause severe burns to skin and eyes. See Inhalation.

Eyes

See Inhalation.

Hazards

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

EC Risk Phrase

R 21/22 34

EC Safety Phrase

S 26 36/37/39 45

UN (DOT)

3265

Exposure Controls/Personal Protection

Personal Protection

Wear appropriate protective gloves, clothing and goggles.

Respirators

Wear positive pressure self-contained breathing apparatus (SCBA).

Fire Fighting Measures

Flash Point

80

Autoignition

420

Fire Fighting

Small Fires: Dry chemical, carbon dioxide or water spray. Large Fires: Dry chemical, carbon dioxide, alcohol-resistant foam or water spray.

Upper exp. limit

5.7

Lower exp. limit

1.2

Fire Potential

Combustible material: may burn but does not ignite readily.

Accidental Release Measures

Small spills/leaks

ELIMINATE all ignition sources. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.

Stability and Reactivity

Disposal Code

4

Combustion Products

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

Transport Information

UN Number

3265

HS Code

2915 60 90