PENTAHYDRATE Definition & Meaning

pentahydrate

[ pen-tuh-hahy-dreyt ]

Phonetic (Standard)IPA

noun

Chemistry.

a hydrate that contains five molecules of water, as potassium molybdate, KMoO 4 ⋅5�� 2 O.

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Other 51�Թ� Forms

��t��·��d��·�� adjective

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51�Թ� History and Origins

Origin of pentahydrate¹

First recorded in 1915–20; penta- + hydrate

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Example Sentences

Examples have not been reviewed.

The pentahydrate is deposited between 79� C. and 56� C.; below this temperature the decahydrate or ordinary borax, Na2B4O7�10H2O, is deposited.

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From a supersaturated aqueous solution of borax, the pentahydrate, Na2B4O7�5H2O, is deposited when evaporation takes place at somewhat high temperatures.

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