The DICT Development Group
2 definitions found
for Chrome alum
From The Collaborative International Dictionary of English v.0.48 :
Chrome \Chrome\, n.
Same as Chromium.
Chrome alum (Chem.), a dark violet substance,
(SO4)3Cr2.K2SO4.24H2O, analogous to, and crystallizing
like, common alum. It is regarded as a double sulphate of
chromium and potassium.
(a) The green oxide of chromium, Cr2O3, used in enamel
painting, and glass staining.
(b) A pigment made by mixing chrome yellow with Prussian
Chrome red, a beautiful red pigment originally prepared
from the basic chromate of lead, but now made from red
oxide of lead.
Chrome yellow, a brilliant yellow pigment, PbCrO4, used
From WordNet (r) 3.0 (2006) :
n 1: a violet-colored salt used in hide tanning and as a mordant
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