Chemical Name:

Isobutane

Formula:

CH3CH(CH3)2

CAS #:

75-28-5

Synonyms:

2-Methylpropane

Exposure Limits:

MAK: 1000 ppm; 2350 mg/m3 (STEL); IV (MAK 1991)
OSHA PEL: none
NIOSH REL: TWA 800 ppm (1900 mg/m3)
NIOSH IDLH: No data

Uses:

Propellant in aerosol products.

Routes of Exposure:

Inhalation, skin and/or eye contact (liquid)

Symptoms:

Vapor: Drowsiness, narcosis, asphyxia, burning sensation; liquid: frostbite

Target Organs:

Central nervous system

Inhalation risk:

A harmful concentration of this gas in the air will be reached very quickly on loss of containment.

Effects of short-term exposure:

The substance irritates. The liquid may cause frostbite. Exposure could cause lowering of consciousness.

Effects of long-term or repeated exposure:

Repeated or prolonged contact with skin may cause dermatitis.

Special Warnings:

 

05/10/01

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2001, Health & Environment Resource Center . The information contained in this factsheet may be printed for personal use, but may not be reproduced or distributed in any form without permission.