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Calcium carbonate, secondary standard for volumetric titrations, Titrasure®

- Synonyms: Lime, Chalk, Marbler- CaCO3r- M = 100,09 g/molr- CAS [471-34-1]r- EINECS-No.: 207-439-9r- Solub. in water: (20 ºC): 14 mg/lr- Melting point: 825 ºC (decomposes)r- LD 50 (oral, rat): 6450 mg/kgr- Tariff number: 2836 50 00 00r- Applications: painting, in the rubber industry, plasticizer, dentifrices, in porcelain industry, insecticide, in food industry, cosmetics, for pharmaceutical use.rrSPECIFICATIONSrassay (on dried sample): 99,5 - 100,1 %rinsoluble in diluted HCl: max. 0,01 %rchlorides (Cl): max. 0,001 %rfluorides (F): max. 0,0015 %rsulfates (SO4): max. 0,005 %rammonium (NH4): max. 0,003 %rbarium (Ba): max. 0,01 %rheavy metals (as Pb): max. 0,001 %riron (Fe): max. 0,002 %rmagnesium (Mg): max. 0,01 %rpotassium (K): max. 0,01 %rsodium (Na): max. 0,01 %rstrontium (Sr) : max. 0,1 %rrThis standard solution is traceable to Standard Reference Material from NIST. r