NIOSH Pocket Guide to Chemical Hazards

Ethylene dibromide

CAS 106-93-4


RTECS KH9275000
Synonyms & Trade Names
1,2-Dibromoethane; Ethylene bromide; Glycol dibromide
DOT ID & Guide
1605 154


NIOSH REL: Ca TWA 0.045 ppm C 0.13 ppm [15-minute] See Appendix A
OSHA PEL: TWA 20 ppm C 30 ppm 50 ppm [5-minute maximum peak]
IDLH Ca [100 ppm] See: 106934 Conversion 1 ppm = 7.69 mg/m3
Physical Description
Colorless liquid or solid (below 50°F) with a sweet odor. [fumigant]
MW: 187.9
BP: 268°F
FRZ: 50°F
Sol: 0.4%
VP: 12 mmHg
IP: 9.45 eV

Sp.Gr: 2.17
Fl.P: NA

Noncombustible Liquid
Incompatibilities & Reactivities
Chemically-active metals such as sodium, potassium, calcium, hot aluminum & magnesium; liquid ammonia; strong oxidizers
Measurement Methods
NIOSH 1008; OSHA 2
See: NMAM or OSHA Methods
Personal Protection & Sanitation (See protection)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet or contaminated
Change: No recommendation
Provide: Eyewash, Quick drench
First Aid (See procedures)
Eye: Irrigate immediately
Skin: Soap wash immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
Important additional information about respirator selection
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
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister/Any appropriate escape-type, self-contained breathing apparatus
Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms Irritation eyes, skin, respiratory system; dermatitis with vesiculation; liver, heart, spleen, kidney damage; reproductive effects; [potential occupational carcinogen]
Target Organs Eyes, skin, respiratory system, liver, kidneys, reproductive system

Cancer Site [in animals: skin & lung tumors]
See also: INTRODUCTION   See ICSC CARD: 0045   See MEDICAL TESTS: 0103