5. (Labarraque’s Disinfecting Solution; Liquor sodæ chlorinatæ, Ph. L. & D.) A solution of chlorinated soda, or, as it is commonly called, ‘chloride of soda.’ M. Labarraque made known this valuable disinfectant in 1822, and obtained the prize of the French ‘Society for Encouraging National Industry’ for its introduction.
6. (Ledoyen’s Disinfecting Fluid.) A solution of nitrate of lead, 1 part, in about 8 parts of water; or, of litharge, 131⁄2 oz., in nitric acid (sp. gr. 1·38), 12 oz., previously diluted with water, 6 pints. Sp. gr. 1·40.
7. (Siret’s Disinfecting Compounds.)—a. A mixture of sulphate of lime, 53 lbs., sulphate of iron, 40 lbs., sulphate of zinc, 7 lbs., and peat charcoal, 2 lbs., made into balls.
b. Sulphate of iron, 20 parts; sulphate of zinc, 10 parts; tan or waste oak-bark (in powder), 4 parts; tar and oil, of each 1 part; as before. Used for deodorising cesspools, &c.
8. (Bisulphide of Carbon.) This generates, when burnt, sulphurous acid, and is, therefore, a very valuable disinfectant. Its highly inflammable nature, however, renders the adoption of certain precautions necessary in its use. A method of employing it in the form of fumigation will be found under the article “Fumigation.”
9. Dry salicylic acid volatilised from a hot plate purifies the air, and perfectly disinfects the walls of a closed room. (Von Heyden.)
10. “Sanitas” is the name given by Mr Kingzett, its discoverer, to a new liquid antiseptic and disinfectant, containing peroxide of hydrogen and camphoric acid, and obtained by the atmospheric oxidation of turpentine. Sanitas is said by its inventor to possess the great advantages of being non-poisonous, and to exercise no injurious effects either on clothing or furniture. It is stated that its antiseptic power is distributed between the peroxide of hydrogen and camphoric acid, the peroxide of hydrogen being able to evolve large quantities of oxygen, which in this state is nascent, and of a powerful and oxidising character.
11. Cooper’s Universal Disinfecting Powder. According to Professor Wanklyn this powder contains 70 per cent. of mixed chloride of sodium and chloride of calcium, and about 6 per cent. of anhydrous sulphate of zinc (equal to about 12 per cent. of hydrated sulphate), a little insoluble matter, and 15 per cent. of moisture.
12. Dr Bond’s Cupralum and Ferralum. The first of these disinfectants is stated to be a mixture of the sulphates of copper and aluminium, with potassic dichromate and turpentine. Its inventor claims for it that it possesses great power of coagulating albumen and high value both as an antiseptic and deodorant. Ferralum is a mixture of ferrous and aluminic sulphates, turpentine, and carbolic acid. Its chief use is for flushing sewers and in deodorising cesspools, urinals, &c.
13. Bayard’s Disinfectant. A mixture of sulphate of iron, clay, lime, and coal tar.