方解石

Description

CALCITE · CAS 13397-26-7 · CaCO3. UNII H0G9379FGK. Solubility: 0.001 % (NIOSH, 2024); Solubility: 0.001%; Density: 2.8 g/cm³.

Identification

CAS Registry Number	13397-26-7
PubChem CID	10112
Molecular formula	CaCO3
IUPAC name	calcium carbonate
UNII (FDA)	H0G9379FGK

Computed Descriptors

Molecular Weight	100.09
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	3
Rotatable Bond Count	0
Exact Mass	99.9473347
Monoisotopic Mass	99.9473347
Topological Polar Surface Area	63.2
Heavy Atom Count	5
Formal Charge	0
Complexity	18.8

Physical & Chemical Properties

Solubility	0.001 % (NIOSH, 2024)
Solubility	0.001%
Density	2.8 g/cm³
Density	2.7-2.95
Density	2.93 @25 °C
Vapor Pressure	0 mmHg (approx) (NIOSH, 2024)
Vapor Pressure	0 mmHg (approx)
Decomposition	825 °C
pH	pH = 8 to 9
Color Additive Status	73.70

Physical description & handling notes

• Dry Powder; Large Crystals; Liquid; Wet Solid; Other Solid; Wet Solid; Other Solid; Dry Powder; Wet Solid; Other Solid; Large Crystals; CBI; Dry Powder; Wet Solid; Dry Powder; Large Crystals; Wet Solid; Other Solid; Liquid; Dry Powder; Liquid; Liquid; Other Solid
• White crystalline or amorphous, odourless and tasteless powder
• White, odorless powder or colorless crystals; [NIOSH]
• WHITE POWDER OR PELLETS.
• White, odorless powder or colorless crystals. Calcium carbonate is soluble in concentrated mineral acids.
• White, odorless powder or colorless crystals.

Regulatory Status

Regulatory & Food Contact	FDA Regulatory Status of Color Additives: Foods, Drugs FDA Substance added to food: Use unspecified FDA Substance added to food: ANTICAKING AGENT OR FREE-FLOW AGENT, COLOR OR COLORING ADJUNCT, DRYING AGENT, FO FDA Cumulative Estimated Daily Intake (CEDI): FCS FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS ANTICAKING_AGENT: Food Additives
GHS notification summary	100% (12 / 12)

GHS Hazard Classification

GHS notification summary	100% (12 / 12)

Documented Uses

• CIR ingredient: Calcium Carbonate
• Smelting Copper or Lead [Category: Industry]
• Cement Producing [Category: Industry]
• Glass Manufacturing [Category: Industry]
• Metal Extraction and Refining [Category: Industry]
• Glassblowing [Category: Hobbies]

Synonyms

CALCIUM CARBONATE; 471-34-1; Aeromatt; Calcium carbonate (1:1); Carbonic acid calcium salt (1:1); Calofort U; Albaglos; Aragonite; Calcicoll; Calseeds; Caltrate; Calwhite; Chemcarb; Duramite; Hydrocarb; Kotamite

Frequently Asked Questions

What are the CAS number and molecular formula of CALCITE?

CAS 13397-26-7; molecular formula CaCO3; molecular weight — g/mol.

What other names is CALCITE known by?

CALCIUM CARBONATE, 471-34-1, Aeromatt, Calcium carbonate (1:1), Carbonic acid calcium salt (1:1), Calofort U.

What is the regulatory status of CALCITE?

Documented regulatory listings: FDA Regulatory Status of Color Additives: Foods, Drugs; FDA Substance added to food: Use unspecified; FDA Substance added to food: ANTICAKING AGENT OR FREE-FLOW AGENT, COLOR OR COLORING ADJUNCT, DRYING AGENT, FO.

Is CALCITE classified as hazardous?

100% of GHS notifications report no hazard classification (12 of 12).

What are the key physical properties of CALCITE?

Solubility: 0.001 % (NIOSH, 2024); Solubility: 0.001%; Density: 2.8 g/cm³; Density: 2.7-2.95.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.