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| Arsine | CAS 7784-42-1 | ||
| AsH3 | RTECS CG6475000 | ||
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Synonyms & Trade Names Arsenic hydride, Arsenic trihydride, Arseniuretted hydrogen, Arsenous hydride, Hydrogen arsenide |
DOT ID & Guide 2188 119 |
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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) | |||
| IDLH Ca [3 ppm] | Conversion 1 ppm = 3.19 mg/m3 | ||
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Physical Description Colorless gas with a mild, garlic-like odor. [Note: Shipped as a liquefied compressed gas.] |
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MW: 78.0 |
BP: -81°F |
FRZ: -179°F |
Sol: 20% |
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VP(70°F): 14.9 atm |
IP: 9.89 eV |
RGasD: 2.69 |
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Fl.P: NA (Gas) |
UEL: 78% |
LEL: 5.1% |
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| Flammable Gas | |||
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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.] |
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Measurement Methods NIOSH 6001; OSHA ID105 |
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Personal Protection & Sanitation Skin: Frostbite Eyes: Frostbite Wash skin: No recommendation Remove: When wet (flammable) Change: No recommendation Provide: Frostbite |
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 |
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| 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] | |
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Target Organs
Blood, kidneys, liver Cancer Site [lung & lymphatic cancer] |
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| See also: INTRODUCTION |