Should a rouge be needed to put a specially brilliant polish upon any object its manufacture ought to be conducted according to the following formula: Dissolve commercial green vitriol in water; dissolve also a like weight of sorrel salt in water; filter both solutions; mix them well, and warm to 140° F.; a yellow precipitate, which on account of its weight, will settle immediately; decant the fluid, dry out the residue, and afterwards heat it as before in an iron dish in a moderately hot furnace till it glows red.
By this process an exceptionally smooth, deep-red powder is obtained, which, if proper care has been exercised in the various steps, will need no elutriation, but can be used for polishing at once. With powders prepared in this wise our optical glasses and lenses of finest quality are polished.
POLISHES FOR THE LAUNDRY: See Laundry Preparations.
POMADE, PUTZ: See Cleaning Preparations and Methods.
POMADES: See Cosmetics.
POMEGRANATE ESSENCE: See Essences and Extracts.
PORCELAIN:
See also Ceramics.