calcium carbonatenoun [ U ]
uk/ˌkæl.si.əm ˈkɑː.bən.eɪt/us/ˌkæl.si.əm ˈkɑːr.bən.eɪt/specializeda common, white chemical compound found naturally as chalk, marble, and limestone, and in bones and shells, etc.
Thesaurus: synonyms and related words
Chemicals, chemical compounds & gases
- acrolein
- adenine
- aldehyde
- alkaline earth metal
- alkane
- ammonia
- ammonium
- ammonium sulphate
- butane
- calcium sulphate
- iodide
- limewater
- lye
- nitrate
- octane
- paraben
- phenolphthalein
- sodium chloride
- starch
- sulphur dioxide
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Examples from literature
- During the fermentation it is necessary to neutralize the acetic acid formed with sodium or calcium carbonate.
- If a thin white crust appears on the limewater solution it is due to the formation of calcium carbonate coming in contact with the air and consequently does no harm.
- Many white pigments, such as zinc oxide, zinc sulphide, calcium carbonate, barium carbonate, calcium sulphate, lead white, etc., turn brown to black, and no white lacquer can be obtained with them.
- Sewage will be thoroughly nitrified only when a sufficient supply of calcium carbonate, or some other base, is available.
- The chief materials forming the mineral matter are calcium phosphate and calcium carbonate.