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| Calcium arsenate (as As) | CAS 7778-44-1 | ||
| Ca3(AsO4)2 | RTECS CG0830000 | ||
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Synonyms & Trade Names Calcium salt (2:3) of arsenic acid, Cucumber dust, Tricalcium arsenate, Tricalcium ortho-arsenate [Note: Also see specific listing for Arsenic (inorganic compounds, as As).] |
DOT ID & Guide 1573 151 |
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Exposure Limits |
NIOSH REL: Ca C 0.002 mg/m3 [15-minute] See Appendix A | ||
| OSHA PEL: [1910.1018] TWA 0.010 mg/m3 | |||
| IDLH Ca [5 mg/m3 (as As)] See: 7778441 | Conversion | ||
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Physical Description Colorless to white, odorless solid. [insecticide/herbicide] |
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MW: 398.1 |
BP: Decomposes |
MLT: ? |
Sol(77°F): 0.01% |
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VP: 0 mmHg (approx) |
IP: NA |
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Sp.Gr: 3.62 |
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Fl.P: NA |
UEL: NA |
LEL: NA |
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| Noncombustible Solid | |||
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Incompatibilities & Reactivities None reported [Note: Produces toxic fumes of arsenic when heated to decomposition.] |
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Measurement Methods NIOSH 7900; OSHA ID105 See: NMAM or OSHA Methods |
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Personal Protection & Sanitation 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 promptly Breathing: Respiratory support Swallow: Medical attention immediately |
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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 Escape: (APF = 50) Any air-purifying, full-facepiece respirator with a high-efficiency particulate filter/Any appropriate escape-type, self-contained breathing apparatus |
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| Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact | |
| Symptoms Lassitude (weakness, exhaustion); gastrointestinal disturbance; peripheral neuropathy; skin hyperpigmentation, palmar planter hyperkeratoses; dermatitis; [potential occupational carcinogen]; in animals: liver damage | |
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Target Organs
Eyes, respiratory system, liver, skin, central nervous system, lymphatic system Cancer Site [lymphatic & lung cancer] |
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| See also: INTRODUCTION See ICSC CARD: 0765 |