CHROME n.
.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 p…
COBALT n.
rite. -- Cobalt blue, a dark blue pigment consisting of some salt of cobalt, as the phosphate, ignited with alumina; -- called also cobalt ultramarine, and Thenard's blue. -- Cobalt crust, earthy arseniate of cobalt. -- Cobalt glance. (Min.) See Cobaltite. -- Cobalt green, a pigment consisting essentially of the ox…