Deodorization Of Calcium Carbide.
CALCIUM SULPHIDE (LUMINOUS): See Paints.
CALFSKIN: See Leather.
CAMERA RENOVATION: See Photography.
CAMPHOR PREPARATIONS:
Fragrant Naphthalene Camphor.—
| Naphthalene white, in scales | 3,000 parts |
| Camphor | 1,000 parts |
| Melt on the steam bath and add to the hot mass: | |
| Coumarin | 2 parts |
| Mirbane oil | 10 parts |
Cast in plates or compressed tablets. The preparation is employed as a moth preventive.
Powdered Camphor In Permanent Form.
II.—Take equal parts of strong ether and alcohol to reduce the camphor to powder. It is claimed for this method that it only takes one-half of the time required when alcohol alone is used, and that the camphor dries more quickly. Before sifting add 1 per cent of white vaseline and 5 per cent of sugar of milk. Triturate fairly dry, spread out in the air, say 15 minutes, then pass through a moderately fine wire sieve, using a stubby shaving brush to assist in working it through. {145}