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Calcium carbonate

Synonyms & Trade Names
Calcium salt of carbonic acid [Note: Occurs in nature as as limestone, chalk, marble, dolomite, aragonite, calcite and oyster shells.]
CAS No.
471-34-1 (synthetic)
1317-65-3 (natural)
RTECS No.
EV9580000
DOT ID & Guide
Formula
CaCO3
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 , 7303;
OSHA ID121
See: NMAM or OSHA Methods
Physical Description
White, odorless powder or colorless crystals.
MW:
100.1
BP:
Decomposes		 MLT: 1517-2442°F (Decomposes)
Sol:
0.001%
VP:
0 mmHg (approx)
IP:
NA
Sp.Gr:
2.7-2.95
Fl.P:
NA
UEL:
NA
LEL:
NA
Noncombustible Solid
Incompatibilities & Reactivities
Acids, alum, ammonium salts, mercury & hydrogen, fluorine, magnesium
Exposure Routes
inhalation, skin and/or eye contact
Symptoms
irritation eyes, skin, respiratory system; cough
Target Organs
Eyes, skin, respiratory system
Personal Protection/Sanitation
(See protection codes)
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

Not available.

Important additional information about respirator selection

See also: INTRODUCTION   See ICSC CARD: 1193
 

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