chromous

[ kroh-muhs ]

adjective

1. containing chromium in the divalent state, as chromous carbonate, CrCO 3 .

chromous

/ ˈkrəʊməs /

adjective

1. of or containing chromium in the divalent state

Word History and Origins

Origin of chromous¹

First recorded in 1830–40; chrom(ium) + -ous

Example Sentences

Intensities of emerald green, chromous oxide, and terre verte 103 22.

From Project Gutenberg

Chromium forms three series of compounds, namely the chromous salts corresponding to CrO, chromous oxide, chromic salts, corresponding to Cr2O3, chromium sesquioxide, and the chromates corresponding to CrO3, chromium trioxide or chromic anhydride.

From Project Gutenberg

Chromous chloride, CrCl2, is prepared by reducing chromic chloride in hydrogen; it forms white silky needles, which dissolve in water giving a deep blue solution, which rapidly absorbs oxygen, forming basic chromic salts, and acts as a very strong reducing agent.

From Project Gutenberg

Chromous sulphate, CrSO4�7H2O, isomorphous with ferrous sulphate, results on dissolving the metal in dilute sulphuric acid or, better, by dissolving chromous acetate in dilute sulphuric acid, when it separates in blue crystals on cooling the solution.

From Project Gutenberg

On pouring a solution of chromous chloride into a saturated solution of sodium acetate, a red crystalline precipitate of chromous acetate is produced; this is much more permanent in air than the other chromous salts and consequently can be used for their preparation.

From Project Gutenberg