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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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Stevens Indicator, Volumes 11-12

Engineering - 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 neutralize any free acid. The crystals should be dissolved with the aid of gentle heat, but the temperature...
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Report

British Association for the Advancement of Science - Science - 1894
...30 C. Mercurous sulphate treated as described in 3 should be added in the proportion of about 12 per cent, by weight of the zinc sulphate crystals to neutralise any free zinc oxide remaining, and the solution filtered, while still warm, into a stock bottle. Crystals should...
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Report of the Annual Meeting, Volume 64

British Association for the Advancement of Science - Science - 1894
...30 C. Mercurous sulphate treated as described in 3 should be added in the proportion of about 12 per cent, by weight of the zinc sulphate crystals to neutralise any free zinc oxide remaining, and the solution filtered, while still warm, into a stock bottle. Crystals should...
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Elementary Lessons in Electricity & Magnetism

Silvanus Phillips Thompson - Electricity - 1894 - 628 pages
...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 gontle heat, but the temperature to which the solution is raised should not exceed 80 C. Mercurous...
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Electrical Measurements: A Laboratory Manual

Henry Smith Carhart, George Washington Patterson (jr) - Electric measurements - 1895 - 344 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...
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Electric Lighting: A Practical Exposition of the Art, for the Use ..., Volume 1

Francis Bacon Crocker - Electric lighting - 1896
...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...but the temperature to which the solution is raised must not exceed -W* C. Mercurous sulphate, treated as described in •!, shall be added in the proportion...
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Elementary Lessons in Electricity & Magnetism

Silvanus Phillips Thompson - Electricity - 1896 - 634 pages
...per cent by weight of the zinc sulphate crystals to neutralize any free acid. The crystals should bo dissolved with the aid of gentle heat, but the temperature...to which the solution is raised should not exceed 30J C. Mercurous sulphate treated as described in .". should be added in the proportion of about 1U...
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Electric Lighting: A Practical Exposition of the Art, for the Use ..., Volume 1

Francis Bacon Crocker - Electric lighting - 1896
...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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Practical Electricity: A Laboratory and Lecture Course for First ..., Volume 1

William Edward Ayrton - Electricity - 1897 - 643 pages
...exceed 30C. Mercurons sulphate treated as described in 3 should be added in the proportion of about 12 per cent. by weight of the zinc sulphate crystals to neutralise any free zinc oxide remaining, and the solution filtered, while still warm, into a stock bottle. Crystals should...
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Practical Electricity: A Laboratory and Lecture Course for First ..., Volume 1

William Edward Ayrton - Electricity - 1897 - 643 pages
...water with nearly twice its weight of erystals of pure zinc sulphate, and adding zinc oxide in the proportion of about 2 per cent. by weight of the zinc sulphate erystals to neutralise any free acid. The crystals should be dissolved with the aid of gentle heat,...
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