n-Butane
Synonyms & Trade Names
normal-Butane, Butyl hydride, Diethyl, Methylethylmethane
[Note: Also see specific listing for Isobutane.]
Exposure Limits
Measurement Methods
Physical Description
Colorless gas with a gasoline-like or natural gas odor.
[Note: Shipped as a liquefied compressed gas. A liquid below 31°F.]
Molecular Weight
58.1
Boiling Point
31°F
Freezing Point
-217°F
Solubility
Slight
Vapor Pressure
2.05 atm
Ionization Potential
10.63 eV
Specific Gravity
0.6 (Liquid at 31°F)
Flash Point
NA (Gas)
Upper Explosive Limit
8.4%
Lower Explosive Limit
1.6%
Relative Gas Density
2.11
Flammable Gas
Incompatibilities & Reactivities
Strong oxidizers (e.g., nitrates & perchlorates), chlorine, fluorine, (nickel carbonyl + oxygen)
Exposure Routes
inhalation, skin and/or eye contact (liquid)
Symptoms
drowsiness, narcosis, asphyxia; liquid: frostbite
Target Organs
central nervous system
Personal Protection/Sanitation
(See protection codes)
Skin:Frostbite
Eyes:Frostbite
Wash skin:No recommendation
Remove:When wet (flammable)
Change:No recommendation
Provide:Frostbite wash
Skin:Frostbite
Eyes:Frostbite
Wash skin:No recommendation
Remove:When wet (flammable)
Change:No recommendation
Provide:Frostbite wash
First Aid
Respirator Recommendations
Not available.
See also
INTRODUCTION
ICSC CARD: 0232
Page last reviewed: October 30, 2019
Content
source: National Institute for Occupational Safety and Health