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anhydride
(redirected from Anhydrate)

    Also found in: Medical, Encyclopedia, Wikipedia 0.02 sec.

anhydride

Chemical compound obtained by the removal of water from another compound; usually a dehydrated acid. For example, sulphur(VI) oxide (sulphur trioxide, SO3) is the anhydride of sulphuric acid (H2SO4).

For monobasic acids, such as carboxylic acids, the formation of an anhydride involves the loss of a molecule of water from two molecules of acid or from two carboxylic groups within one molecule, the latter resulting in a ring closure.



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? Mentioned in ? References in periodicals archive
 
5 gives an example from a study on self-healing capacity of concrete due to anhydrate cement left after hydration (He et al.
Sampling concrete by too small elements; what should we do to get ... by Stroeven, Piet; Guo, Zhanqi / Image Analysis and Stereology
To ensure complete removal of water, approximately 5mg of anhydrate sodium sulfate was added to the methanolic fraction and the sample was filtered.
Bioavailability of the phenolic compounds of the fruits (drupes) of ... by Kountouri, A.M.; Mylona, A.; Kaliora, A.C.; Andrikopoulos, N.K. / Phytomedicine: International Journal of Phytotherapy & Phytopharmacology
In this region, where dependence on imported fuels (like oil and derivatives) is almost total, there are soils and climates suited to agricultural production of energy whose potential has been known for centuries, and it is paradoxical that ethanol anhydrate is not consumed internally and exported in growing volume.
REGION EMBRACES ETHANOL; A CAFTA COMPLICATION by NotiCen: Central American & Caribbean Affairs
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