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| Limestone | CAS 1317-65-3 | ||
| CaCO3 | RTECS EV9580000 | ||
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Synonyms & Trade Names Calcium carbonate, Natural calcium carbonate [Note: Calcite & aragonite are commercially important natural calcium carbonates.] |
DOT ID & Guide |
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Exposure Limits |
NIOSH REL: TWA 10 mg/m3 (total) TWA 5 mg/m3 (resp) | ||
| OSHA PEL: TWA 15 mg/m3 (total) TWA 5 mg/m3 (resp) | |||
| IDLH N.D. | Conversion | ||
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Physical Description Odorless, white to tan powder. |
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MW: 100.1 |
BP: Decomposes |
MLT: 1517-2442°F (Decomposes) |
Sol: 0.001% |
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VP: 0 mmHg (approx) |
IP: NA |
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Sp.Gr: 2.7-2.9 |
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Fl.P: NA |
UEL: NA |
LEL: NA |
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| Noncombustible Solid | |||
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Incompatibilities & Reactivities Fluorine, magnesium, acids, alum, ammonium salts |
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Measurement Methods NIOSH 0500, 0600 |
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Personal Protection & Sanitation Skin: No recommendation Eyes: No recommendation Wash skin: No recommendation Remove: No recommendation Change: No recommendation |
First Aid (See procedures) Eye: Irrigate immediately Skin: Soap wash Breathing: Fresh air |
| Respirator Recommendations To be added later | |
| Exposure Routes inhalation, skin and/or eye contact | |
| Symptoms Irritation eyes, skin, mucous membrane; cough, sneezing, rhinorrhea (discharge of thin mucus); lacrimation (discharge of tears) | |
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Target Organs
Eyes, skin, respiratory system |
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| See also: INTRODUCTION |