 | Royal Society (Great Britain) - Electronic journals - 1892 - 626 pages
...crystals should be dissolved with the aid of gentle heat, ie, not exceeding a temperature of 80° C., and the solution filtered, while still warm, into a stock bottle. Crystals should form as it cools. 4. The Mercurout Sulphate. — Take mercurous sulphate, purchased as pure, and wash it thoroughly with... | |
 | Science - 1895 - 1104 pages
...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... | |
 | National Academy of Sciences (U.S.) - Science - 1888 - 840 pages
...cent by weight of the /.inc sulphate crystals to neutralize the free zinc oxide remaining, and then the solution filtered, while still warm, into a stock bottle. Crystals should form as it cools. 5. I'tvpanition of the mcrniram tudphate and r»'»c milpliatc pattf. — For making the paste, two or... | |
 | National Academy of Sciences (U.S.) - Science - 1890 - 682 pages
...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... | |
 | Electrical engineering - 1891 - 680 pages
...crystals should be dissolved with the aid of gentle heat — ie, not exceeding a temperature of SOdeg. C., and the solution filtered, while still warm, into a stock bottle. Crystals should form as it cools. 4. The Mercuroua Stdphate. — Take mercurous sulphate, purchased as pure, and wash it thoroughly with... | |
 | Great Britain - Law - 1894 - 610 pages
...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... | |
 | Royal Society (Great Britain) - Electronic journals - 1892 - 612 pages
...crystals should be dissolved with the aid of gentle heat, ie, not exceeding a temperature of 30° C., and the solution filtered, while still warm, into a stock bottle. Crystals should form as it cools. 4. The Mercuroui Sulphate. — Take mercurous sulphate, purchased as pure, and wash it thoroughly with... | |
 | British Association for the Advancement of Science - Science - 1892 - 1258 pages
...crystals should bo dissolved with the aid of gentle heat, ie not exceeding a temperature of 30° C., and the solution filtered, while still warm, into a stock bottle. Crystals should form as it cools. 4. The M.erairoun Sulphate. — Take mercnrous sulphate, purchased as pure, and wash it thoroughly... | |
 | British Association for the Advancement of Science - Science - 1892 - 1146 pages
...crystals should be dissolved with the aid of gentle heat, ie not exceeding a temperature of 30° C., and the solution filtered, while still warm, into a stock bottle. Crystals should form as it cools. 4. The Mercurotts Sulphate. — Take mercurous sulphate, purchased as pare, and wash it thoroughly... | |
 | 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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... to neutralise 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. Mercurous sulphate treated as described in 3 should be added in the proportion... 
