Arsine |
Synonyms & Trade Names Arsenic hydride, Arsenic trihydride, Arseniuretted hydrogen, Arsenous hydride, Hydrogen arsenide |
CAS No. 7784-42-1 |
RTECS No. CG6475000 |
DOT ID & Guide 2188 119 |
FormulaAsH3 |
Conversion 1 ppm = 3.19 mg/m3 |
IDLH Ca [3 ppm]
See: 7784421 |
Exposure Limits NIOSH REL: Ca C 0.002 mg/m3 [15-minute] See Appendix A
OSHA PEL: TWA 0.05 ppm (0.2 mg/m3) |
Measurement Methods
NIOSH 6001;
OSHA ID105
See: NMAM or OSHA Methods |
Physical Description Colorless gas with a mild, garlic-like odor. [Note: Shipped as a liquefied compressed gas.] |
MW: 78.0 |
BP: -81°F |
FRZ: -179°F |
Sol: 20% |
VP(70°F): 14.9 atm |
IP: 9.89 eV |
|
Fl.P: NA (Gas) |
UEL: 78% |
LEL: 5.1% |
RGasD: 2.69 |
|
| Flammable Gas |
Incompatibilities & Reactivities Strong oxidizers, chlorine, nitric acid [Note: Decomposes above 446°F. There is a high potential for the generation of arsine gas when inorganic arsenic is exposed to nascent (freshly formed) hydrogen.] |
Exposure Routes inhalation, skin and/or eye contact (liquid) |
Symptoms headache, malaise (vague feeling of discomfort), lassitude (weakness, exhaustion), dizziness; dyspnea (breathing difficulty); abdominal, back pain; nausea, vomiting; bronze skin; hematuria (blood in the urine); jaundice; peripheral neuropathy; liquid: frostbite; [potential occupational carcinogen] |
Target Organs Blood, kidneys, liver |
Cancer Site[lung & lymphatic cancer] |
Personal Protection/Sanitation (See protection codes)
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
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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
Important additional information about respirator selection |
| See also: INTRODUCTION See ICSC CARD: 0222 See MEDICAL TESTS: 0018 |
