chrome alum

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chrome alum

A violet-red crystalline compound, CrK(SO₄)₂·12H₂O, used in tanning, as a mordant, and in photography.

chrome alum

(Chemistry / Elements & Compounds) a violet-red crystalline substance, used as a mordant in dyeing. Formula: KCr(SO₄)₂.12H₂O

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Noun

chrome alum - a violet-colored salt used in hide tanning and as a mordant in dyeing

mordant - a substance used to treat leather or other materials before dyeing; aids in dyeing process

salt - a compound formed by replacing hydrogen in an acid by a metal (or a radical that acts like a metal)

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