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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 C. "
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
...the solution is raised must not exceed 30 C. Mercurous sulphate, treated as described in 3, shall be added in the proportion of about 12 per cent by weight of the zinc sulphate crystals to neutralize the free zinc oxide remaining, and then the solution filtered, while still warm, into a...
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Report of the National Academy of Sciences

National Academy of Sciences (U.S.) - Science - 1890
...the solution is raised must not exceed 30 C. Mercurous sulphate, treated as described in 3, shall be added in the proportion of about 12 per cent by weight of the zinc sulphate crystals to nentralize the free zinc oxide remaining, and then the solution filtered, while still warm, into a...
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Statutory Rules and Orders Other Than Those of a Local, Personal Or ...

Great Britain - Law - 1894
...with the aid of gentle heat, but the temperature to 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. by weight of the zinc sulphate crystals to neutralise any free zinc oxide remaining, and the...
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Transactions, Volume 10

Electric engineering - 1893
...•solution is raised should not exceed 30 deg. C. Mercurous sulphate treated as described in paragraph 4 should be added in the proportion of about 12 per cent, by weight of the zinc sulphate crystals, and the solution filtered while still warm, into a stock bottle. Crystals should form as it cools....
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Transactions, Volume 10

American Institute of Electrical Engineers - Electric engineering - 1893
...solution is raised should not exceed 30 decj. C. Mercurous sulphate treated as describe'l in paragraph 4 should be added in the proportion of about 12 per cent, by weight of the zinc sulphate crystals, and the solution filtered while still warm, into a stock bottle. Crystals should form as it cools....
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The Electrical Engineer

Electrical engineering - 1893
...which the solution is raised should not exceed SOdeg. C. Mercurous sulphate, treated as described in 4, should be added in the proportion of about 12 per cent, by weight of the zinc sulphate crystals, and the solution filtered while still warm into a stock bottle. Crystals should form as it cools. 4....
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Elementary Lessons in Electricity & Magnetism

Silvanus Phillips Thompson - Electricity - 1894 - 638 pages
...the aid of gentle best, but the temperature to which the solution is raised should not exceed ;to-* C. Mercurous sulphate treated as described in 3 should...per cent by weight of the zinc sulphate crystals to neutralize any free zinc oxide remaining, and the solution Iiltered, while still warm, into a stock...
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Report of the Annual Meeting, Volume 63

British Association for the Advancement of Science - Science - 1894
...which the solution is raised should not exceed 30 C. Mercurons sulphate treated as described in 4 should be added in the proportion of about 12 per cent, by weight of the zinc sulphate crystals, and the solution filtered, while still warm, into a stock bottle. Crystals should form as it cools....
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Stevens Indicator, Volumes 11-12

Engineering - 1894
...the solution is raised must not exceed 30 C. Mercurous sulphate, treated as described in 3, shall be added in the proportion of about 12 per cent, by weight of the zinc sulphate crystals to neutralize the free zinc oxide remaining, and then the solution filtered, while still warm, into a...
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Report

British Association for the Advancement of Science - Science - 1894
...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. The crystals should be dissolved with the aid of gentle heat, but the temperature to which the...
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