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1,3-Butadiene

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Synonyms & Trade Names
Biethylene, Bivinyl, Butadiene, Divinyl, Erythrene, Vinylethylene
CAS No.
106-99-0
RTECS No.
EI9275000
DOT ID & Guide
1010 116P(inhibited)
Formula
CH₂=CHCH=CH₂
Conversion
1 ppm = 2.21 mg/m³
IDLH
Ca [2000 ppm] [10%LEL]
See: 106990
Exposure Limits
NIOSH REL
Ca See Appendix A
OSHA PEL
[1910.1051] TWA 1 ppm ST 5 ppm
Measurement Methods
NIOSH 1024;
OSHA 56
See: NMAM or OSHA Methods
Physical Description
Colorless gas with a mild aromatic or gasoline-like odor. [Note: A liquid below 24°F. Shipped as a liquefied compressed gas.]
Molecular Weight
54.1
Boiling Point
24°F
Freezing Point
-164°F
Solubility
Insoluble
Vapor Pressure
2.4 atm
Ionization Potential
9.07 eV
Specific Gravity
0.65 (Liquid at 24°F)
Flash Point
NA (Gas) -105°F (Liquid)
Upper Explosive Limit
12.0%
Lower Explosive Limit
2.0%
Relative Gas Density
1.88
Flammable Gas
Incompatibilities & Reactivities
Phenol, chlorine dioxide, copper, crotonaldehyde [Note: May contain inhibitors (such as tributylcatechol) to prevent self-polymerization. May form explosive peroxides upon exposure to air.]
Exposure Routes
inhalation, skin and/or eye contact (liquid)
Symptoms
irritation eyes, nose, throat; drowsiness, dizziness; liquid: frostbite; teratogenic, reproductive effects; [potential occupational carcinogen]
Target Organs
Eyes, respiratory system, central nervous system, reproductive system
Cancer Site
[hemato cancer]
Personal Protection/Sanitation
(See protection codes)
Skin:Frostbite
Eyes:Frostbite
Wash skin:No recommendation
Remove:When wet (flammable)
Change:No recommendation
Provide:Frostbite wash
First Aid
(See procedures)
Eye:Frostbite
Skin:Frostbite
Breathing:Respiratory support
Respirator Recommendations

(See Appendix E)

NIOSH

At concentrations above the NIOSH REL, or where there is no REL, at any detectable concentration:


(APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus

Escape:
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted canister providing protection against the compound of concern
Any appropriate escape-type, self-contained breathing apparatus

Important additional information about respirator selection

See also
INTRODUCTION   ICSC CARD: 0017   MEDICAL TESTS: 0254
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health