selenious acid

noun

Chemistry.

1. a colorless, crystalline, water-soluble, poisonous powder, H 2 SeO 3 , used chiefly as a reagent.

selenious acid

noun

1. a white soluble crystalline strong dibasic acid analogous to sulphurous acid. Formula: H 2 SeO 3

Word History and Origins

Origin of selenious acid¹

First recorded in 1825–35

Example Sentences

Selenious acid, 6 parts; cupric sulphate, 10 parts; water 1,000 parts; nitric acid, 5 parts.

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Selenious acid, 10 parts; nitric acid, 5 parts; cupric sulphate; water, 1,000 parts.

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