Important: Safety Warning
This page describes trade processes that use dangerously toxic materials such as cyanide solutions, mercury amalgams, or strong acids. These processes require training, equipment, and precautions far beyond what the text describes.
This information has been left in for historical purposes but should not be acted upon.
Home › Cements And Uniting Bodies › White Table Glass
White Table Glass
Fuse toble, and fusible; but it sometimes exhibits othexhibits other qualities. The principle of its production is gether 40 pounds potashes, 11 chalk, 76 sand, very simple, although skill and experience are 1/2 part manganese, 95 white cullet. Or: 50 necessary to insure excellence. Silica (com- parts purified potashes, 100 sand, 20 chalk, monly under the form of sand) is heated with and 2 saltpetre. 2 saltpetre. 2347.
Crystal Glass. Take 60 parts pucarbonate of potassa or soda and slaked lime or oxide of lead, until the mixture fuses and rified potashes, 120 sand, 24 chalk, 2 saltpetre, combination takes place. When the mass be- 2 arsenious acid, 16 part manganese. Or: comes perfectly limpid and free from air bub- Purified pearlashes, 70 parts; 120 white sand; bles, it is allowed to cool until it assumes the 10 saltpetre; 1/2 part arsenious acid; and 1 the 10 saltpetre; & part arsenious acid; and peculiar tenacious condition for working. part manganese. Or: 67 parts sand, 23 puri GLASS. fied pearlashes, 10 sifted slacked lime, + part parts; dry carbonate of soda, 26½ parts; manganese, 5 to 8 red lead. lime, 4 parts; nitre, 1½ parts; broken plate White glass, 25 parts.