NIOSH Publication No. 2005-151:

NIOSH Pocket Guide to Chemical Hazards

September 2005




Synonyms & Trade Names

Antimony hydride, Antimony trihydride, Hydrogen antimonide
DOT ID & Guide
2676 / 119


NIOSH REL: TWA 0.1 ppm (0.5 mg/m3)
OSHA PEL: TWA 0.1 ppm (0.5 mg/m3)
5 ppm See: 7803523
1 ppm = 5.10 mg/m3
Physical Description
Colorless gas with a disagreeable odor like hydrogen sulfide.
MW: 124.8
BP: -1°F
FRZ: -126°F
Sol: Slight
VP: >1 atm
IP: 9.51 eV
RGasD: 4.31

Fl.P: NA (Gas)
UEL: ?
LEL: ?

Flammable Gas
Incompatibilities & Reactivities

Acids, halogenated hydrocarbons, oxidizers, moisture, chlorine, ozone, ammonia
Measurement Methods
NIOSH 6008
See: NMAM or OSHA Methods
Personal Protection & Sanitation
(See protection)
Skin: No recommendation
Eyes: No recommendation
Wash skin: No recommendation
Remove: No recommendation
Change: No recommendation

First Aid
(See procedures)

Breathing: Respiratory support

Respirator Recommendations
Up to 1 ppm:
(APF = 10) Any supplied-air respirator
Up to 2.5 ppm:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode
Up to 5 ppm:
(APF = 50) Any supplied-air respirator that has a tight-fitting facepiece and is operated in a continuous-flow mode
(APF = 50) Any self-contained breathing apparatus with a full facepiece
(APF = 50) Any supplied-air respirator with a full facepiece
Emergency or planned entry into unknown concentrations or IDLH conditions:
(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
Important additional information about respirator selection
Exposure Routes
Headache, lassitude (weakness, exhaustion); nausea, abdominal pain; lumbar pain, hematuria (blood in the urine), hemolytic anemia; jaundice; pulmonary irritation
Target Organs
Blood, liver, kidneys, respiratory system
See also: INTRODUCTION   See ICSC CARD: 0776   See MEDICAL TESTS: 0211