Calcium silicate |
Synonyms & Trade Names Calcium hydrosilicate, Calcium metasilicate, Calcium monosilicate, Calcium salt of silicic acid |
CAS No. 1344-95-2 |
RTECS No. VV9150000 |
DOT ID & Guide |
FormulaCaSiO3 |
Conversion |
IDLH N.D.
See: IDLH INDEX |
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) |
Measurement Methods
NIOSH 7020;
OSHA ID121
See: NMAM or OSHA Methods |
Physical Description White or cream-colored, free-flowing powder. [Note: The commercial product is prepared from diatomaceous earth & lime.] |
MW: 116.2 |
BP: ? |
MLT: 2804°F |
Sol: 0.01% |
VP: 0 mmHg (approx) |
IP: NA |
Sp.Gr: 2.9 |
Fl.P: NA |
UEL: NA |
LEL: NA |
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| Noncombustible Solid |
Incompatibilities & Reactivities None reported [Note: After prolonged contact with water, solution reverts to soluble calcium salts & amorphous silica.] |
Exposure Routes inhalation, skin and/or eye contact |
Symptoms irritation eyes, skin, upper respiratory system |
Target Organs Eyes, skin, respiratory system |
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Personal Protection/Sanitation (See protection codes)
Skin: No recommendation
Eyes: No recommendation
Wash skin: No recommendation
Remove: No recommendation
Change: No recommendation
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First Aid (See procedures)
Eye: Irrigate immediately
Skin: Soap wash
Breathing: Fresh air
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Respirator Recommendations Not available.
Important additional information about respirator selection |
| See also: INTRODUCTION See ICSC CARD: 1401
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