Important: Safety Warning
This page directs the use of hazardous substances — such as benzine, gasoline, lye, or strong acids — for household tasks. These materials are highly flammable, corrosive, or poisonous, and the practices described have caused fires, burns, and poisonings.
This information has been left in for historical purposes but should not be acted upon.
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Table Of Relative Value Of Disinfectants
Chloride of lime with sulphuric acid, Chloride of lime with sulphate of iron, Carbolic acid, disinfecting powder, Slaked lime, Alum, Sulphate of iron, • • • Sulphate of magnesia, 99 • 85.6 84.6 80.4 76.7 • 57.1 51.3 Permanganate of potash, with sulphuric acid, Hence, if nothing better is available, use air-slaked lime freely in powder whenever epidemic and contagious diseases are present. For cesspools use sulphate of iron in solution.
XX. Tests for Impurities in Water.
To tell if water be hard or soft, dissolve soap in alcohol, and drop a little in a glass of the water; it will become more or less milky, according to the hardness of he water.