carbonate


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.

carbonate

carbonate (kärˈbənātˌ, –nət), chemical compound containing the carbonate radical or ion, CO3−2. Most familiar carbonates are salts that are formed by reacting an inorganic base (e.g., a metal hydroxide) with carbonic acid. Normal carbonates are formed when equivalent amounts of acid and base react; bicarbonates, also called acid carbonates or hydrogen carbonates, are formed when the acid is present in excess. Sodium carbonate, Na2CO3, sodium bicarbonate, NaHCO3, and potassium carbonate, K2CO3, are widely used. Smelling salts is ammonium carbonate. Calcium carbonate is found in shells of animals and in Iceland spar, limestone, and marble; it is used in the production of lime (calcium oxide). Barium carbonate occurs as the mineral witherite. Magnesium carbonate occurs as magnesite and in dolomite (with calcium carbonate). Iron carbonate is a ferrous compound that occurs in nature as siderite. White lead used as a pigment in paints is basic lead carbonate. Only ammonium, potassium, and sodium carbonates are readily soluble in water. Alkali metal carbonates are stable when heated, but other carbonates decompose, releasing carbon dioxide. Carbonates also give off carbon dioxide when treated with dilute acids, e.g., hydrochloric acid.
The Columbia Electronic Encyclopedia™ Copyright © 2022, Columbia University Press. Licensed from Columbia University Press. All rights reserved.

carbonate

[′kär·bə·nət]
(chemistry)
An ester or salt of carbonic acid.
A compound containing the carbonate (CO32-) ion.
Containing carbonates.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

carbonate

a salt or ester of carbonic acid. Carbonate salts contain the divalent ion CO32-- FORMULA
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
Key players in the industry are developing and utilizing molten carbonate fuel cell technologies in cooperation with end users.
However, while pH and local variability is relatively straightforward to measure in the field, carbonate concentration is difficult to measure directly.
Huber Carbonates launched a series of ground calcium carbonates earlier this year at The Precast Show in Denver, underscoring the powders' capacity to replace fly ash; improve concrete mix workability; contribute to self-consolidating mix spread profile; and, maintain consistent white color without impacting fresh or hardened concrete properties.
As a matter of fact, a natural marine product, namely, the cockle (Anadara granosa) shell, has been widely reported to have good quality and pure calcium carbonate aragonite polymorph content [1, 4, 7, 9, 10, 26].
View Calcium Carbonate Market Report with Table Of Content @ http://www.grandviewresearch.com/industry-analysis/calcium-carbonate-market
[2] used an aqueous solution of calcium carbonate to enhance the strength of soft ground.
There are many ways to compose calcium carbonate including carbonization, precipitate method, and high gravity method.
- In-house carbonate Exploration Target of 24.5Mt to 40.8Mt sufficient to support flux requirements for a 1Mtpa pig iron operation for a minimum of 50 years.
Calcium carbonate can also be used in steel production, the manufacturing of paper, paints and dyes, water and industrial waste treatment, sugar extraction and the reduction of acidity of soil used for agricultural purposes.
2009); however, dry combustion does not provide a direct measurement of OC in soils that contain substantial quantities of carbonate. This is because carbonate is unstable at the temperatures required to efficiently combust organic matter and convert OC to CO2.
For processes (such as dissolution, adsorption and/or precipitation) that frequently occur in carbonate rock on contact with the reservoir fluid or injected chemicals such as chemical scale inhibitors to be correctly understood, it is necessary to have a good understanding of some basic chemistry related to the minerals and chemical compounds making up the carbonate rock, this is because, it is primarily these compounds that take parts in these reactions.
With the inclusion of cellulose polymers, fatty acids, xylitol and calcium carbonate, an all natural white coating system can now be offered to health-conscious individuals.