 | William Hallock, Herbert Treadwell Wade - Metric system - 1906 - 334 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...but the temperature to which the solution is raised must not exceed 30° C. Mercurous sulphate, treated as described in 3, shall be added in the proportion... | |
 | John Roberts (Electrical engineer.) - Electric engineering - 1906 - 238 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... | |
 | William Hallock, Herbert Treadwell Wade - Metric system - 1906 - 324 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... | |
 | Thomas Ernest Herbert - Telegraph - 1906 - 944 pages
...water with nearly twice its weight of crystals of [Mire 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... | |
 | Harry Robert Kempe - Electric measurements - 1908 - 730 pages
...30C C. Mercuruus sulphate treated as described in (;() 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 slock bottle. Crystals should... | |
 | Harold H. Simmons - Electric engineering - 1908 - 1016 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... | |
 | Carl Hering - 1910 - 810 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. (See notes below.) The crystals should be dissolved with the aid of gentle... | |
 | Horatio Alvah Foster - Electrical engineering - 1913 - 1676 pages
...weight of the zinc sulphate crystals to neutralize any free acid. The crystals should be dissolved by ich о b ց "P 1913 D. Van Nostrand company"/ Fo must not exceed 30° C. Mercurous sulphate, treated as described in 3, shall be added in the proportion... | |
 | Sir John Ambrose Fleming - Electric apparatus and appliances - 1914 - 462 pages
...30° C. Mercurous sulphate, treated as described in c, 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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... 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 
