Chapter Chowchow to Chromic of C by Webster's Dictionary (1913 Edition)

Chromatype
(Chro"ma*type) n. [Gr. color + type.]

1. (Photog.) A colored photographic picture taken upon paper made sensitive with potassium bichromate or some other salt of chromium.

2. The process by which such picture is made.

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.

Chromic
(Chro"mic) a. (Chem.) Pertaining to, or obtained from, chromium; — said of the compounds of chromium in which it has its higher valence.

Chromic acid, an acid, H₂CrO₄, analogous to sulphuric acid, not readily obtained in the free state, but forming well known salts, many of which are colored pigments, as chrome yellow, chrome red, etc. — Chromic anhydride, a brilliant red crystalline substance, CrO₃, regarded as the anhydride of chromic acid. It is one of the most powerful oxidizers known.