NIOSH Publication No. 2005-151:

NIOSH Pocket Guide to Chemical Hazards

September 2005




Synonyms & Trade Names

1-Chloro-2,3-dibromopropane; DBCP; Dibromochloropropane
DOT ID & Guide
2872 / 159


NIOSH REL: Ca See Appendix A
OSHA PEL: [1910.1044] TWA 0.001 ppm
1 ppm = 9.67 mg/m3
Physical Description
Dense yellow or amber liquid with a pungent odor at high concentrations. [pesticide] [Note: A solid below 43°F.]
MW: 236.4
BP: 384°F
FRZ: 43°F
Sol: 0.1%
VP: 0.8 mmHg
IP: ?

Sp.Gr: 2.05
Fl.P(oc): 170°F
UEL: ?
LEL: ?

Class IIIA Combustible Liquid: Fl.P. at or above 140F and below 200F.
Incompatibilities & Reactivities

Chemically-active metals such as aluminum, magnesium & tin alloys [Note: Corrosive to metals.]
Measurement Methods
None available
See: NMAM or OSHA Methods
Personal Protection & Sanitation
(See protection)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated/Daily
Remove: When wet or contaminated
Change: Daily
Provide: Eyewash, Quick drench
First Aid
(See procedures)
Eye: Irrigate immediately
Skin: Soap wash immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
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 organic vapor canister having an N100, R100, or P100 filter. Click here for information on selection of N, R, or P filters./Any appropriate escape-type, self-contained breathing apparatus
Important additional information about respirator selection
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
Irritation eyes, skin, nose, throat; drowsiness; nausea, vomiting; pulmonary edema; liver, kidney injury; sterility; [potential occupational carcinogen]
Target Organs
Eyes, skin, respiratory system, central nervous system, liver, kidneys, spleen, reproductive system, digestive system

Cancer Site
[in animals: cancer of the nasal cavity, tongue, pharynx, lungs, stomach, adrenal & mammary glands]
See also: INTRODUCTION   See ICSC CARD: 0002   See MEDICAL TESTS: 0064