 | Silvanus Phillips Thompson - Electric power - 1898 - 664 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...to which the solution is raised should not exceed J50° C. Mercurous sulphate treated as described in 3 should be added in the proportion of about 12... | |
 | Canada - 1901 - 1306 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 neutralize any free acid. The crystals should be dissolved with the aid of gentle heat, but the temperature... | |
 | Horatio Alvah Foster - Electrical engineering - 1901 - 1018 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 by the aid of gentle helit, but the temperature... | |
 | Sir John Ambrose Fleming - Electric apparatus and appliances - 1902 - 488 pages
...30° C. Mercurous sulphate, treated as described in c, should be added in the proportion of about 1 2 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... | |
 | Silvanus Phillips Thompson - Electricity - 1902 - 650 pages
...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... | |
 | John Shiress Will - Electric engineering - 1903 - 570 pages
...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... | |
 | Frederick Hutton Getman - Chemistry, Physical and theoretical - 1904 - 288 pages
...distilled water with approximately twice its weight of crystals of the salt, and adding zinc oxide in the proportion of about 2 per cent. by weight of the zinc sulphate crystals to neutralize any free acid which may be present. The crystals should be dissolved by heating slightly,... | |
 | Great Britain - Administrative law - 1904 - 512 pages
...30° C. Merourous 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... | |
 | United States. Bureau of Standards - Physics - 1905 - 542 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 neutralize any free acid. The crystals should be dissolved with the aid of gentle heat, but the temperature... | |
 | Thomas Ernest Herbert - Telegraph - 1906 - 946 pages
...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...which the solution is raised should not exceed 30° 0. Mercurous sulphate treated as described in 3 should be added in the proportion of about 12 per cent,... | |
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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 
