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Whiting

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Key Data

Formula: CaCO3
CAS: 1317-65-3
Other names: Calcium carbonate
Appearance: White powder
Solubility in water:
Thermal decomposition: Beginning at 675°C and accelerating towards 800°C, CaCO₃ → CaO + CO₂(g)
Oxidation:
Softening Point:
Melting Point:
Boiling Point:
Dustiness:

Composition/Impurities

Uses

Radioactivity

Exposure Routes

Skin and Eye Exposure

Skin Absorption

Inhalation

Ingestion

Toxicity

Acute

Skin

Inhalation

Ingestion

Repeat Dose

Skin

Inhalation

Ingestion

Genotoxicity

Carcinogenicity

Reproductive Toxicity

Fire Hazard

Health and Safety Practice

Disposal

Regulatory Requirements

Dust Limits

_Regulator_	_8hr TWA mg/m³_	_15min TWA mg/m³_	_Notes_
UK HSE	10		Inhalable dust
UK HSE	4		Respirable dust
USA NIOSH REL	10		Total dust
USA NIOSH REL	5		Respiratory dust
USA OSHA PEL	15		Total dust
USA OSHA PEL	5		Respiratory dust