Mosaic Gold.
The handsomest, purest, and most gold-like mosaic gold is obtained by melting 12 parts of pure tin, free from lead, and mixing with 6 parts of mercury to an amalgam. This is mixed with 7 parts of flowers of sulphur and 6 parts of sal ammoniac, whereupon the mass is subjected for several hours to a heat which at first does not attain redness, but eventually when no more fumes are generated is increased to dark-red heat. This operation is conducted either in a glass retort or in an earthenware crucible. The sal ammoniac escapes first on heating, next vermilion sublimates and some stannic chloride, while the mosaic gold remains on the bottom, the upper layer, consisting of lustrous, golden, delicately translucent leaflets, being the handsomest mosaic gold.
Genuine Silver Bronze.
Imitation Silver Bronze.
Mosaic Silver.
BRONZE VARNISHES: See Varnishes.
BRONZING SOLUTIONS FOR PAINTS: See Paints.
BRONZING OF WOOD: See Wood.
BROOCHES, PHOTOGRAPHS ON: See Photography.
BROWN OINTMENT: See Ointments.