2587. Water-Glass as a Solvent of Coralline

2587.    Water-Glass as a Solvent of Coralline. Dissolve coralline in a boiling mixture of 1 part concentrated water-glass (silicate of soda or potassa of the consistency of a thick syrup), and 4 parts water, and, after cooling, apply this solution as a paint for wood (white woods containing little or no tannic acid are preferable), paper, toys, artificial flower tissues, etc., to all of which materials this solution of coralline imparts a beautiful carmine red tint.

2588. Preparation of Innoxious Coralline

2588.    Preparation of Innoxious Coralline. M. Guyot states that coralline is frequently poisonous, because the rosolic acid, used to obtain it, contains phenol (carbolic acid), and this dangerous quality in the product can only be avoided by using the exact proportions necessary, in manufacturing the compounds.

2589. To Prepare Aniline Brown for Dyeing

2589.    To Prepare Aniline Brown for Dyeing. This color may be used as a liquid dye, and for this purpose 1 pound of the brown may be dissolved in 2 gallons of spirit specific gravity 8200.

2590. To Dye with Aniline Brown

2590.      To Dye with Aniline Brown. Add a sufficient quantity of the dye, prepared according to the previous receipt, to the dye bath, and immerse the fabric. "Wool possesses a very strong affinity for this color, and no mordant is required. A snuff brown, more or less deep, is produced.

2591. To Prepare Bismarck Brown for Dyeing

2591.     To Prepare Bismarck Brown for Dyeing. Mix together 1 pound Bismarck, 5 pounds water, and 3/4 p6und sulphuric acid. This paste dissolves easily in hot water and may be used directly for dyeing. A liquid dye may bo prepared by making the bulk of the above mixture to 2 gallons with alcohol.

2592. To Dye Wool Bismarck Brown

2592.   To Dye Wool Bismarck Brown. Render the bath, prepared as in No. 2591, sour with sulphuric acid; add a quantity of sulphate of soda, immerse the wool, and add the color by small portions, keeping the temperature under 212° Fahr. Very interesting shades may be developed by combining the color with indigo paste or picric acid. (See No. 2601 (To Dye with Picric Acid).)

2593. To Dye Cotton Bismarck Brown

2593. To Dye Cotton Bismarck Brown. Cotton requires mordanting with sumach and acetate of alumina, and is dyed in a bath under 100° Fahr., prepared according to No. 2591. By the use of bichromate of potash redder shades may be obtained. The usual color inclines to cinnamon.

2594. To Dye with Vesuvine

2594.    To Dye with Vesuvine. This aniline color is prepared and used in the same manner as magenta. (See No. 2575 (To Prepare Magenta for Dyeing), etc.)

2595. To Dye with Aurine

2595.     To Dye with Aurine. Dissolve 1 pound aurine in 2 gallons alcohol specific gravity .8200. This color is used principally for silk. Dye in a bath containing a trace of sulphuric acid. By combining with magenta (see No. 2575 (To Prepare Magenta for Dyeing)), very bright colors are produced.