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Biological calcium carbonate(oyster shell powder) CAS No.: 471-34-1

Eggshells, snail shells and most seashells are predominantly calcium carbonate and can be used as industrial sources of that chemical. Oyster shells have enjoyed recent recognition as a source of dietary calcium, but are also a practical industrial source.
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Biological calcium carbonate(oyster shell powder)

AppearanceWhite or almost white powder          

CAS No.:471-34-1 

Molecular FormulaCaCO3 

Molecular Weight:100.09

Usage:As a nutritional supplement, the natural source is safer, more suitable for human digestion and absorption, and is one of the best nutrient calcium sources. Biological calcium carbonate has a high calcium content. Its calcium content is 3 times that of calcium lactate and 4 times that of calcium gluconate. The three indicators of good nutrition, absorption rate, utilization rate and animal weight gain are better than calcium in milk. Moreover, it has no peculiar smell and small side effects; it can be widely used in food, medicine and other industries. In addition to being a nutritional enhancer, it can also be used as an alkaline agent, dough regulator or anti-caking agent.


Packaging and Storage25kg, inner packaging is food grade PE bag, outer packaging is composite paper bag, or customized packaging according to user requirements.


Storage conditions: Store in a dry, clean, cool and ventilated placeShelf Life: In conform to the specified storage conditions and packaging is complete, shelf life is 2 years.


项目 Items

指标 Specification

鉴别试验 Identification

Pass A

碳酸钙(干基)CaCO3(Dry base)

%

98.0~100.5

干燥失重(Loss on drying)

%

≤2.0

盐酸不溶物 Acid-insoluble substance

%

≤0.20

铁 Iron

%

≤0.1

镁盐及碱金属 Magnesium and alkali salts

%

≤1.0

钡 Barium


Pass

氟限量(Limit of fluoride)

ppm

≤50

重金属(以 Pb 计) Heavy metals

ppm

≤20

铅 Lead

ppm

≤3

砷 Arsenic

ppm

≤3

汞 Mercury

ppm

≤0.5


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