Heat water to boiling, and add first turpentine, next ammonia, and then carbolic crystals. Stir well until thoroughly dissolved, and add lyes and sugar solution.
Disinfecting Powders.
| I.— | Sulphate of iron | 100 parts |
|---|---|---|
| Sulphate of zinc | 50 parts | |
| Oak bark, powder | 40 parts | |
| Tar | 5 parts | |
| Oil | 5 parts |
II.—Mix together chloride of lime and burnt umber, add water, and set on plates. {263}
Blue Sanitary Powder.—
| Powdered alum | 2 pounds |
| Oil of eucalyptus | 12 ounces |
| Rectified spirits of tar | 6 ounces |
| Rectified spirit of turpentine | 2 ounces |
| Ultramarine blue (common) | 3/4 ounces |
| Common salt | 14 pounds |
Mix alum with about 3 pounds of salt in a large mortar, gradually add oil of eucalyptus and spirits, then put in the ultramarine blue, and lastly remaining salt, mixing all well, and passing through a sieve.
Carbolic Powder.
Color with aniline dye and then pass through a moderately fine sieve and put into tins or casks and keep air-tight.