Calcium arsenate (as As)
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CAS
7778-44-1
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Ca3(AsO4)2
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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).]
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DOT ID & Guide
1573 / 151
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Exposure
Limits
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NIOSH REL: Ca C 0.002 mg/m3 [15-minute] See Appendix A
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OSHA PEL: [1910.1018] TWA 0.010 mg/m3
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IDLH
Ca [5 mg/m3 (as As)]
See: 7778441
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Conversion
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Physical Description
Colorless to white, odorless solid. [insecticide/herbicide]
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MW: 398.1
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BP: Decomposes
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MLT: ?
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Sol(77°F): 0.01%
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VP: 0 mmHg (approx)
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IP: NA
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Sp.Gr: 3.62
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Fl.P: NA
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UEL: NA
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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 |
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
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First Aid (See procedures)
Eye: Irrigate immediately
Skin: Soap wash promptly
Breathing: Respiratory support
Swallow: Medical attention immediately
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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 with 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
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Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
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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 |
