Green.—a. From sulphate of copper, 2 oz.;
bichromate of potash, 1 dr., or q. s.; water, 1 pint.—b. A solution of sulphate of copper, 2 oz.; chloride of sodium, 4 oz.; water, 1 pint, or q. s.—c. A solution of distilled verdigris in acetic acid, diluted with water, q. s.—d. Dissolve blue vitriol in water, and add nitric acid until it turns green.
Lilac.—a. Dissolve crude oxide of cobalt (zaffre) in nitric or hydrochloric acid, add sesquicarbonate of ammonia, in excess, and afterwards sufficient ammonio-sulphate of copper to strike the colour.—b. As the purple, but more diluted.
Magenta. Acetate of rosaniline, dissolved in water, q. s.
Olive. Dissolve sulphate of iron and oil of vitriol, equal weights, in water, and add of nitrate of copper, q. s. to strike the colour.
Orange.—a. A solution of bichromate of potash in water, either with or without the addition of some hydrochloric or sulphuric acid.—b. Dissolve gamboge or annotta in liquor of potassa; dilute with water, and add a little spirit.
Pink.—a. To a solution of chloride or nitrate of cobalt, in water, add sesquicarbonate of ammonia, q. s. to dissolve the precipitate at first formed.—b. From madder (washed with cold water), 1 oz.; sesquicarbonate of ammonia, 4 oz.; water, 3 pints; digest, with agitation, for 24 hours, then dilute with more water, and filter.
Purple.—a. A solution of sulphate of copper, 1 oz., in water, 1 quart, or q. s., with the addition of sesquicarbonate of ammonia, 11⁄2 oz.—b. To the last add a sufficient quantity of the first pink (above) to turn the colour.—c. To an infusion of logwood, add carbonate of ammonia or of potassa, q. s.—d. Sugar of lead, 3 oz.; powdered cochineal, 1 dr.; water, q. s.—e. Add sulphate of indigo, nearly neutralised with chalk, to an infusion of cochineal, till it turns purple.
Red.—a. Dissolve carmine in liquor of ammonia, and dilute with water.—b. Digest powdered cochineal in a weak solution of ammonia or of sal ammoniac, and afterwards dilute with water.—c. Add oil of vitriol, 4 oz., to water, 1 gall., and digest dried red rose leaves, 8 oz., in the mixture for 24 hours.—d. Dissolve madder lake in a solution of sesquicarbonate of ammonia, and dilute the solution with water.
Violet. To a solution of nitrate of cobalt in a solution of sesquicarbonate of ammonia, add solution of ammonio-sulphate of copper, q. s. to strike the colour.