Home > Technical Articles > Calcium Carbonate
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Home > Technical Articles > Calcium Carbonate
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| Calcium carbonate is used in a large variety
of products: antacids, adhesives, cement, paint, plastics, paper,
pharmaceuticals, mineral supplements, and much more.
Calcium carbonate is one of the materials we test most frequently. Originally we started when CA Prop 65 limited the lead (Pb) in calcium supplements. Now we perform all kinds of tests for calcium carbonate, from assay to impurities, for producers and users. The methods we use are summarized below. |
(Calcite Mineral) |
Testing Calcium Carbonate
Tests per USP, EP, FCC, ACS, and other monographs
Identification wet chemistry tests for calcium and carbonate Assay by EDTA titration Fluoride by ion selective electrode Heavy metals by sulfide precipitation As, Ba, Fe, and Pb by various wet chemistry and spectroscopic methods Organic Volatile Impurities by headspace GC-FID Chlorides and Sulfates by various wet chemistry and spectroscopic methods Magnesium and alkali salts by wet chemistry test Acid insoluble substances by wet chemistry test Tests per WCAS Methods
Lead (Pb) for CA Prop 65 by isotope dilution - ICPMS* >60 Element Screen by ICPMS* As, Hg, Cd, etc. by ICPMS* % Composition by XRF *These methods have been validated per ICH guidelines for
Elements Calibration Range Major Elements: Fe, Mg, K, and Na 20-20,000 ug/g Trace Elements As, Sb, Ba, Bi, Cd, Cu, Pb, Mo, Ag, Sn, and Sr 0.2-200 ug/g Hg 0.05-10 ug/g
Other Links:
- Encylopedia.com
- Omya - leading producer
- Medline
- Ca Prop 65, Pb in Calcium
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9240 Santa Fe Springs
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562.948.2225 Fax 562.948.5850 |
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Formerly West Coast Analytical Service (WCAS) and Bodycote Testing Group |
