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Purified Annotto

To a boiling 2613. Dyeing with Fuchsine on Wool or Silk. Fuchsine (the crystals of acetate of rosaniline), or the solution, is mixed with cold water for silk, or in water of 130° to 140° solution of pearlash add as much annotto as it Fahr. for wool, which temperature is kept up. will dissolve. When cold, decant the clear For silk, a few drops of acetic acid are also solution, and neutralize with diluted sulphuric added. The strength of the dye regulates acid, avoiding any excess. the quantity which is required. The goods Wash the precipitate with a little cold water, and dry it.