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| Calcium hydroxide | CAS 1305-62-0 | ||
| Ca(OH)2 | RTECS EW2800000 | ||
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Synonyms & Trade Names Calcium hydrate, Caustic lime, Hydrated lime, Slaked lime |
DOT ID & Guide |
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Exposure Limits |
NIOSH REL: TWA 5 mg/m3 | ||
| OSHA PEL: TWA 15 mg/m3 (total) 5 mg/m3 (resp) | |||
| IDLH N.D. | 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 |
BP: Decomposes |
MLT: 1076°F (Decomposes) (Loses H2O) |
Sol(32°F): 0.2% |
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VP: 0 mmHg (approx) |
IP: NA |
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Sp.Gr: 2.24 |
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Fl.P: NA |
UEL: NA |
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; ID121 |
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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 flush immediately Breathing: Respiratory support Swallow: Medical attention immediately |
| Respirator Recommendations To be added later | |
| Exposure Routes inhalation, ingestion, skin and/or eye contact | |
| 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 |