铬黄

[ noun ]
any of several yellow pigments consisting of normal lead chromate and other lead compounds
<noun.substance>

Yellow \Yel"low\, n.
1. A bright golden color, reflecting more light than any
other except white; the color of that part of the spectrum
which is between the orange and green. ``A long motley
coat guarded with yellow.'' --Shak.

2. A yellow pigment.

{Cadmium yellow}, {Chrome yellow}, {Indigo yellow}, {King's
yellow}, etc. See under {Cadmium}, {Chrome}, etc.

{Naples yellow}, a yellow amorphous pigment, used in oil,
porcelain, and enamel painting, consisting of a basic lead
metantimonate, obtained by fusing together tartar emetic
lead nitrate, and common salt.

{Patent yellow} (Old Chem.), a yellow pigment consisting
essentially of a lead oxychloride; -- called also
{Turner's yellow}.


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.

{Chrome green}
(a) The green oxide of chromium, {Cr2O3}, used in enamel
painting, and glass staining.
(b) A pigment made by mixing chrome yellow with Prussian
blue.

{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
by painters.