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Calcium is a chemical element; it has symbol Ca and atomic number 20. As an alkaline earth metal, calcium is a reactive metal that forms a dark oxide-nitride layer when exposed to air. Its physical and chemical properties are most similar to its heavier homologues strontium and barium. It is the fifth most abundant element in Earth's crust, and ...
Calcium carbonate is the active ingredient in agricultural lime and is produced when calcium ions in hard water react with carbonate ions to form limescale. It has medical use as a calcium supplement or as an antacid, but excessive consumption can be hazardous and cause hypercalcemia and digestive issues.
Calcium acetate is a chemical compound which is a calcium salt of acetic acid. It has the formula Ca (C 2 H 3 O 2) 2. Its standard name is calcium acetate, while calcium ethanoate is the systematic name. An older name is acetate of lime. The anhydrous form is very hygroscopic; therefore the mono hydrate (Ca (CH 3 COO) 2 •H 2 O) is the common ...
Yogurt. It’s no secret that dairy products are a great source of calcium: Take plain, low-fat yogurt for example. The average serving size of 8 ounces (or 1 cup) has a whopping 448 mg of calcium.
Calcium propionate is used as a preservative in a wide variety of products, including: bread, other baked goods, processed meat, whey, and other dairy products. [2] In agriculture, it is used, amongst other things, to prevent milk fever in cows and as a feed supplement. [3] Propionates prevent microbes from producing the energy they need, like ...
Calcium phosphate is the usual constitution of microcalcifications of the breast, particularly dystrophic calcifications. Microcalcifications as can be seen on mammography can be an early sign of breast cancer. Based on morphology, it is possible to classify by radiography how likely microcalcifications are to indicate cancer. [7]
Calcium lactate is a less concentrated forms of calcium than calcium carbonate. Calcium lactate contains 13% elemental calcium. It is often used as a food additive to enhance the calcium content of foods, replace other salts, or increase the overall pH (that is, decrease the acidity) of the food.
Calcium citrate is the calcium salt of citric acid. It is commonly used as a food additive , usually as a preservative, but sometimes for flavor. In this sense, it is similar to sodium citrate. Calcium citrate is also found in some dietary calcium supplements (e.g. Citracal or Caltrate). Calcium makes up 24.1% of calcium citrate (anhydrous) and ...