NIOSH Pocket Guide to Chemical Hazards

Marble CAS 1317-65-3
CaCO3 RTECS EV9580000
Synonyms & Trade Names
Calcium carbonate, Natural calcium carbonate [Note: Marble is a metamorphic form of calcium carbonate.]
DOT ID & Guide
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. See: IDLH INDEX Conversion
Physical Description
Odorless, white powder.
MW: 100.1
BP: Decomposes
MLT: 1517-2442°F (Decomposes)
Sol: 0.001%
VP: 0 mmHg (approx)
IP: NA

Sp.Gr: 2.7-2.9
Fl.P: NA
UEL: NA
LEL: NA

Noncombustible Solid
Incompatibilities & Reactivities
Fluorine, magnesium, acids, alum, ammonium salts
Measurement Method
Filter; none; Gravimetric; IV [Particulates NOR: #0500 (total), #0600 (respirable)] See: NMAM INDEX
Personal Protection & Sanitation
Skin: N.R.
Eyes: N.R.
Wash skin: N.R.
Remove: N.R.
Change: N.R.

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, upper respiratory system; cough, sneezing, rhinorrhea (discharge of thin nasal mucous); lacrimation (discharge of tears)
Target Organs Eyes, skin, respiratory system
See also: INTRODUCTION   See ICSC CARD: 0503