21069

Calcium carbonate

tested according to Ph. Eur.

• Synonym(s): Calcii carbonas
• Linear Formula: CaCO₃
• CAS Number: 471-34-1
• Molecular Weight: 100.09
• Beilstein: 8008338
• EC Number: 207-439-9
• MDL number: MFCD00010906
• UNSPSC Code: 12352300
• PubChem Substance ID: 329751908
• NACRES: NA.21

Properties

• Agency: USP/NF; tested according to Ph. Eur.
• Quality Level: 200
• Assay: 99.3%
• form: powder
• solubility: 1 M acetic acid: soluble; alcohol: insoluble; hydrochloric acid: soluble (3 N); nitric acid: soluble (2 N)
• density: 2.93 g/mL at 25 °C (lit.)
• SMILES string: [Ca++].[O-]C([O-])=O
• InChI: 1S/CH2O3.Ca/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2
• InChI key: VTYYLEPIZMXCLO-UHFFFAOYSA-L

Description

Application

Calcium carbonate has been utilized by plants and animal for the formation of their skeletons and shells. It also facilitates the calcium carbonate crystal growth on a chitosan substrate.

Biochem/physiol Actions

Calcium carbonate is a naturally occurring compound that reduces T4 absorption and enhancess serum thyrotropin levels. It also precludes osteoporosis induced by thyrotropin-suppressive doses of levothyroxine in postmenopausal women. Additionally, it reduces diarrhea in individuals with protease inhibitor-induced HIV-infection.

Safety Information

• Storage Class Code: 13 - Non Combustible Solids
• WGK: nwg
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves