Calcium hydroxide
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CAS
1305-62-0
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Ca(OH)2
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RTECS
EW2800000
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Synonyms & Trade Names
Calcium hydrate, Caustic lime, Hydrated lime, Slaked lime
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DOT ID & Guide
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Exposure
Limits
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NIOSH REL: TWA 5 mg/m3
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OSHA PEL: TWA 15 mg/m3 (total) 5 mg/m3 (resp)
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IDLH
N.D.
See: IDLH INDEX
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Conversion
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Physical Description
White, odorless powder. [Note: Readily absorbs CO2 from the air to form calcium carbonate.]
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MW: 74.1
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BP: Decomposes
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MLT: 1076°F (Decomposes) (Loses H2O)
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Sol(32°F): 0.2%
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VP: 0 mmHg (approx)
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IP: NA
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Sp.Gr: 2.24
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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
Maleic anhydride, phosphorus, nitroethane, nitromethane, nitroparaffins, nitropropane [Note: Attacks some metals.]
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Measurement Methods
NIOSH 7020; OSHA ID121
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 flush immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
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Respirator Recommendations
Not available.
Important additional information about respirator selection
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Exposure Routes
inhalation, ingestion, skin and/or eye contact
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Symptoms
Irritation eyes, skin, upper respiratory system; eye, skin burns; skin vesiculation; cough, bronchitis, pneumonitis
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Target Organs
Eyes, skin, respiratory system
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See also: INTRODUCTION
See ICSC CARD: 0408 |
