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red, etc. By extension, any one of the series of substances derived from, or related to, rosaniline proper.

A yellow substance obtained as a by-product in the manufacture of rosaniline. It dyes silk a fine golden-yellow color.

when dissolved forming a brilliant dark red. It consists of a hydrochloride or acetate of rosaniline. See Rosaniline.

sting essentially of a basic hydrate of chromium. -- Methyl green (Chem.), an artificial rosaniline dyestuff, obtained as a green substance having a brilliant yellow luster; -- called also light-green. -- Mineral green. See under Mineral. -- Mountain green. See Green earth, under Green, a. -- Paris green (Chem.), a…

A colorless, crystalline, organic base, obtained from rosaniline by reduction, and also from other sources. It forms colorless salts.

yl violet (Chem.), an artificial dye, consisting of certain methyl halogen derivatives of rosaniline.

spida) with handsome clusters of rose-colored blossoms. -- Rose aniline. (Chem.) Same as Rosaniline. -- Rose apple (Bot.), the fruit of the tropical myrtaceous tree Eugenia Jambos. It is an edible berry an inch or more in diameter, and is said to have a very strong roselike perfume. -- Rose beetle. (Zoöl.) (a) A sma…

ng to, or designating, a complex red dyestuff (called rosolic acid) which is analogous to rosaniline and aurin. It is produced by oxidizing a mixture of phenol and cresol, as a dark red amorphous mass, C20H16O3, which forms weak salts with bases, and stable ones with acids. Called also methyl aurin, and, formerly, cora…