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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 "
Guide to the Practical Elements of Electrical Testing - Page 39
by J. Warren - 1901 - 186 pages
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The American Journal of Science

Science - 1895
...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...
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Report of the National Academy of Sciences

National Academy of Sciences (U.S.) - Science - 1888
...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...
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Report of the National Academy of Sciences

National Academy of Sciences (U.S.) - Science - 1890
...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...
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Statutory Rules and Orders Other Than Those of a Local, Personal Or ...

Great Britain - Law - 1894
...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....
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The Electrical Engineer

Electrical 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...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...
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Transactions of the American Institute of Electrical Engineers

American Institute of Electrical Engineers - Electrical 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...
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Transactions, Volume 10

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...
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Elementary Lessons in Electricity & Magnetism

Silvanus Phillips Thompson - Electricity - 1894 - 638 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...
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Report of the Annual Meeting, Volume 63

British Association for the Advancement of Science - Science - 1894
...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...
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Elementary Lessons in Electricity & Magnetism

Silvanus Phillips Thompson - Electricity - 1894 - 638 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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