Silver Ink
Silver ink is prepared in the same way, from silver leaf, as the goll in last receipt. assumes a beautiful green color. After the addition of a small quantity of gum-arabic, it is ready for use. 2497. Violet, Magenta, and Solferino Ink. Inks of these, and such other bright aniline colors may be made as follows: Mix 1 drachm of the proper aniline color with 14 ounces alcohol (see No. 2578) in a glass or enameled iron vessel; let it stand for 3 hours. Then add 13 ounces distilled water, and subject the whole to a gentle heat until the alcohol has evaporated, that is, until no odor of alcohol is perceptible; then add 4 drachms gum-arabic dissolved in 3 ounces water. Mix and strain.
As the aniline colors of commerce vary a great deal in quality, the amount of dilution must vary with the sample used, and the shade determined by trial.