 | Royal Society (Great Britain) - 1892 - 626 стор.
...The Zinc Sulphate Solution. — Prepare a saturated solution of pure (" pure recrystallised ") zinc sulphate by mixing in a flask distilled water with...weight of crystals of pure zinc sulphate, and adding a little zinc carbonate to neutralise any free acid. The whole of the crystals should be dissolved... | |
 | 1895 - 1104 стор.
...Prepare a neutral saturated solution of pure re-crystallized zinc sulphate, free from iron, by mixing distilled water with nearly twice its weight of crystals...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.) - 1888 - 840 стор.
...mixing 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.) - 1890 - 682 стор.
...Prepare a nentral saturated solution of pure recrystallized zinc sulphate, free from iron, by mixing distilled water with nearly twice its weight of crystals...per cent by weight of the zinc sulphate crystals to nentralize any free acid. The crystals should be dissolved with the aid of gentle heat, but the temperature... | |
 | 1891 - 680 стор.
...Prepare a saturated solution of pure—" pure recrystallised " — zinc sulphate by mixing in a flask of distilled water with nearly twice its weight of crystals of pure zinc sulphate, and adding a little zinc carbonate to neutralise any free acid. The whole of the crystals should be dissolved... | |
 | Royal Society (Great Britain) - 1892 - 612 стор.
...The Zinc Sulphate Solution. — Prepare a saturated solution of pure (" pure recrystallised ") zinc sulphate by mixing in a flask distilled water with...weight of crystals of pure zinc sulphate, and adding a little zinc carbonate to neutralise any free acid. The whole of the crystals should be dissolved... | |
 | 1893 - 630 стор.
...Prepare a saturated solution of pure (" pure recrystallised ") zinc sulphate by mixing in a flask of distilled water with nearly twice its weight of crystals...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... | |
 | 1893
...The Zinc Sulphate Solution. — Prepare a saturated solution of pure (" pure recrystallized ") zinc sulphate by mixing in a flask distilled water with...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... | |
 | American Institute of Electrical Engineers - 1893 - 780 стор.
...Sulphate Solution. — Prepare a saturated solution of pure (" pure recrystallized ") zinc sulphate bv mixing in a flask distilled water with nearly twice...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... | |
 | British Association for the Advancement of Science - 1894 - 1272 стор.
...The Zinc Sulphate Solution. — Prepare a saturated solution of pure (' pure recrystallised ') zinc sulphate by mixing in a flask distilled water with...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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Prepare a neutral saturated solution of pure ('pure recrystallized ') zinc sulphate by mixing in a flask 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... 
