chrome alum
noun
Also called ammonium chrome alum, ammonium chromic sulfate.
a green, crystalline, water-soluble powder, chromium ammonium sulfate, CrNH4(SO4)2⋅12H2O, used chiefly as a mordant in dyeing.
a violet, crystalline, water-soluble powder, potassium chromium sulfate, CrK(SO4)2⋅12H2O, used chiefly as a mordant in dyeing.
Words nearby chrome alum
chromatophobia,
chromatophore,
chromatopsia,
chromaturia,
chrome,
chrome alum,
chrome dioxide,
chrome dome,
chrome green,
chrome leather,
chrome red
British Dictionary definitions for chrome alum
chrome alum
noun
a violet-red crystalline substance, used as a mordant in dyeing. Formula: KCr(SO 4) 2 .12H 2 O