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calcium carbonate wikipedia the free

Calcium carbonate - Simple English Wikipedia, the free

Calcium carbonate is a chemical compound, with the chemical formula Ca C O 3. The elements involved are calcium (Ca), carbon (C) and oxygen (O). It is a common substance found as rock in all parts of the world, and is the main component of seashells, snails, and eggshell. Calcium carbonate. Calcium carbonate is usually the main cause of hard water.

Calcium carbonate - Wikipedia

Calcium carbonate is a chemical compoond wi the formula Ca C O 3. It is a common substance foond in rocks in aw pairts o the warld, an is the main component o shells o marine organisms , snails , coal balls , pairls , an eggshells .

Calcite - Simple English Wikipedia, the free encyclopedia

Calcite is one of the most common minerals on the Earth 's surface. It is a often part of sedimentary rocks, especially limestone. It is also the primary mineral in metamorphic marble . It is a chemical or biochemical calcium carbonate with the formula CaCO 3. It is a carbonate mineral.

Calcium supplement - Wikipedia

Calcium carbonate is the most common and least expensive calcium supplement. It should be taken with food, and depends on low pH levels (acidic) for proper absorption in the intestine. Some studies suggests that the absorption of calcium from calcium carbonate is similar to the absorption of calcium from milk.

Calcium - Wikipedia

The most common calcium compound on Earth is calcium carbonate, found in limestone and the fossilised remnants of early sea life; gypsum, anhydrite, fluorite, and apatite are also sources of calcium. The name derives from Latin calx " lime ", which was obtained from heating limestone.

Calcium bicarbonate - Wikipedia

Calcium bicarbonate, also called calcium hydrogen carbonate, has a chemical formula Ca (HCO 3) 2. The term does not refer to a known solid compound; it exists only in aqueous solution containing the calcium (Ca 2+ ), bicarbonate ( HCO. 3 ), and carbonate ( CO2. 3)

Calcium citrate - Wikipedia

Biological role. In many individuals, bioavailability of calcium citrate is found to be equal to that of the cheaper calcium carbonate. However, alterations to the digestive tract may change how calcium is digested and absorbed. Unlike calcium carbonate, which is basic and neutralizes stomach acid, calcium citrate has no effect on stomach acid. Calcium carbonate is harder to digest than

Portland limestone - Simple English Wikipedia, the free

Formation Origin. Portland limestone was formed in a shallow, warm, sub-tropical sea on the continental shelf of what is now western Europe. Limestones are mostly made of calcium carbonate.This comes originally from the bodies of many small organisms which build their shells or framework out of CaCO 3 crystals. An example is the type of protist called coccolithophores.

CALCIUM CARBONATE | Medicinal forms | BNF content

Calcium carbonate 1.25g chewable tablets sugar free (Phoenix Healthcare Distribution Ltd) Active ingredients Size Unit NHS indicative price Drug tariff Drug tariff price; Calcium carbonate 1.25 gram; 100: tablet Calcium carbonate 1.25 gram; 100:

Sodium carbonate - Wikipedia

Sodium carbonate, Na2CO3, is the inorganic compound with the formula Na2CO3 and its various hydrates. All forms are white, water-soluble salts that yield moderately alkaline solutions in water. Historically it was extracted from the ashes of plants growing in sodium-rich soils. Because the ashes of these sodium-rich plants were noticeably different from ashes of wood, sodium carbonate became

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