 | Science - 1895 - 1104 pages
...distilled water with nearly twice its weight of crystals of pure zinc sulphate and adding zinc oxide in the proportion of about 2 per cent, by weight of the zinc sulphate crystals to neutralize any free acid. The crystals should be dissolved with the aid of gentle heat, but the temperature... | |
 | National Academy of Sciences (U.S.) - Science - 1888 - 840 pages
...distilled water with nearly twice its weight of crystals of pure Kino sulphate and Adding nine oxide in the proportion of about 2 per cent, by weight of the zinc sulphate crystals to neutralize any free acid. The crystals should be dissolved with the aid of gentle heat, but the tem|teratnro... | |
 | National Academy of Sciences (U.S.) - Science - 1890 - 682 pages
...zinc oxide in the proportion of about 2 per cent by weight of the zinc sulphate crystals to nentralize any free acid. The crystals should be dissolved with...but the temperature to which the solution is raised must not exceed 30° C. Mercurous sulphate, treated as described in 3, shall be added in the proportion... | |
 | Great Britain - Law - 1894 - 610 pages
...water with nearly twice its weight of crystals of pure zinc sulphate, and adding zinc oxide in the proportion of about 2 per cent, by weight of the zinc...which the solution is raised should not exceed 30' C. Mercurous sulphate treated as described in 3 should be added in the proportion of about 12 per cenc.... | |
 | Electrical engineering - 1893 - 630 pages
...water with nearly twice its weight of crystals of pure zinc sulphate, and adding zinc oxide in the proportion of about 2 per cent, by weight of the zinc...acid.* The crystals should be dissolved with the aid of a gentle heat, but the temperature to which the solution is raised should not exceed SOdeg. C. Mercurous... | |
 | American Institute of Electrical Engineers - Electric engineering - 1893 - 780 pages
...water with nearly twice its weight of crystals of pure zinc sulphate, and adding zinc oxide in the proportion of about 2 per cent, by weight of the zinc sulphate crystals to neutralize any free acid. (See notes below.) The crystals should be dissolved with the aid of gentle... | |
 | Electric engineering - 1893
...water with nearly twice its weight of crystals of pure zinc sulphate, and adding zinc oxide in the proportion of about 2 per cent, by weight of the zinc sulphate crystals to neutralize any free acid. (See notes below.) The crystals should be dissolved with the aid of gentle... | |
 | Silvanus Phillips Thompson - Electric power - 1894 - 666 pages
...zinc oxide in the proportion of abeut 2 per cent by weight of the zinc sulphate crystals to neutralize any free acid. The crystals should be dissolved with...which the solution is raised should not exceed 30° C. Mercurous sulphate treated as deseribed in 3 should he added in the proportion of about 12 per rent... | |
 | British Association for the Advancement of Science - Science - 1894 - 1272 pages
...water with nearly twice its weight of crystals of pure zinc sulphate, and adding zinc oxide in the proportion of about 2 per cent, by weight of the zinc sulphate crystals to neutralise any free acid.1 The crystals should be dissolved with the aid of gentle heat, but the temperature to which the... | |
 | Silvanus Phillips Thompson - Electric power - 1894 - 668 pages
...water with nearly twice its weight of crystals of pure zinc sulphate, and adding zinc oxide in the proportion of about 2 per cent by weight of the zinc sulphate crystals to nentralize any free acid. The crystals should be 58S) dissolved with the aid of gentle best, but the... | |
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... any free acid. The crystals should be dissolved with the aid of gentle heat, but the temperature to which the solution is raised should not exceed 30 
