Calcio carbonato, precipitato, Pharmpur®, Ph Eur, BP, USP

- Synonyms: Lime, Chalk, Marble
- CaCO3
- M = 100,09 g/mol
- CAS [471-34-1]
- EINECS-No.: 207-439-9
- Solub. in water: (20 ºC): 14 mg/l
- Melting point: 825 ºC (decomposes)
- LD 50 (oral, rat): 6450 mg/kg
- Tariff number: 2836 50 00 00
- Applications: painting, in the rubber industry, plasticizer, dentifrices, in porcelain industry, insecticide, in food industry, cosmetics, for pharmaceutical use.

SPECIFICATIONS
assay (complexometric, on dried sample): 98,5 - 100,5 %
Identification A (EP): passes test
identification B (EP): passes test
insoluble in CH3COOH: max. 0,2 %
insoluble in HCl : max. 0,2 %
chlorides (Cl): max. 330 ppm
sulfates (SO4): max. 0,25 %
arsenic (As): max. 3 ppm
barium (Ba): passes test
mercury (Hg): max. 0,5 ppm
fluorides (F): max. 50 ppm
lead (Pb): max. 3 ppm
iron (Fe): max. 200 ppm
magnesium and alkali metals: max. 1,0 %
loss on drying (200ºC, 4 h): max. 2,0 %