# NIOSH Pocket Guide to Chemical Hazards
1,3-Butadiene | CAS 106-99-0
CH2=CHCH=CH2 | RTECS EI9275000
Synonyms & Trade Names Biethylene, Bivinyl, Butadiene, Divinyl, Erythrene, Vinylethylene | DOT ID & Guide 1010 116P (inhibited)
Exposure Limits | NIOSH REL: Ca See Appendix A
OSHA PEL: [1910.1051] TWA 1 ppm ST 5 ppm
IDLH Ca [2000 ppm] [10%LEL] | Conversion 1 ppm = 2.21 mg/m3
Physical Description Colorless gas with a mild aromatic or gasoline-like odor. [Note: A liquid below 24°F. Shipped as a liquefied compressed gas.]
MW: 54.1 | BP: 24°F | FRZ: -164°F | Sol: Insoluble
VP: 2.4 atm | IP: 9.07 eV | RGasD: 1.88 | Sp.Gr: 0.65 (Liquid at 24°F)
Fl.P: NA (Gas) -105°F (Liquid) | UEL: 12.0% | LEL: 2.0% |
Flammable Gas Class IA Flammable Liquid
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.]
Measurement Methods NIOSH 1024; OSHA 56
Personal Protection & Sanitation Skin: Frostbite Eyes: Frostbite Wash skin: No recommendation Remove: When wet (flammable) Change: No recommendation Provide: Frostbite | First Aid (See procedures) Eye: Frostbite Skin: Frostbite Breathing: Respiratory support
Respirator Recommendations 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
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 [hematopoietic cancer]
See also: INTRODUCTION