NIOSH Pocket Guide to Chemical Hazards


CAS 106-99-0


RTECS EI9275000
Synonyms & Trade Names
Biethylene, Bivinyl, Butadiene, Divinyl, Erythrene, Vinylethylene
DOT ID & Guide
1010 116P (inhibited)


NIOSH REL: Ca See Appendix A
OSHA PEL: [1910.1051] TWA 1 ppm ST 5 ppm
IDLH Ca [2000 ppm] [10%LEL] See: 106990 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
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
See: NMAM or OSHA Methods
Personal Protection & Sanitation (See protection)
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

Important additional information about respirator selection
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
(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   See ICSC CARD: 0017   See MEDICAL TESTS: 0254