 | William Newton - 1844 - 508 Seiten
...containing alcoholised potash. This capsula is covered with its glass cover, and then heated, by VOL. xxv. o means of a spirit-lamp, to about 144° Fahrenheit....called normal acid, must be prepared; it is composed as follows:—Water 600 parts, nitric acid 45 parts, solution of nitrite of potassa 12 parts, solution... | |
 | 1844 - 576 Seiten
...and then heated, by means of a spirit-lamp, to about 144° Fahr. The plate must remain in the capsule half an hour, during which the solution is heated...parts, nitric acid 4-5 parts, solution of nitrite of potash 12 parts, solution of common salt 4-5 parts. These proportions are in volume. The normal acid... | |
 | 1844 - 580 Seiten
...during which time the solution is heated now and then, and agitated. During thai time the followiog acid solution, which will be called normal acid, must...These proportions are in volume. The normal acid must he poured into a capsule, covered with its glass cover, and a sufficient quantity must be kept in the... | |
 | William Newton, Charles Frederick Partington - 1844 - 508 Seiten
...solution is heated now and then, and agitated. During that time the following acid solution, which will he called normal acid, must be prepared ; it is composed...These proportions are in volume. The normal acid must he poured in a capsula, covered with its glass cover, and a sufficient quantity must be kept in the... | |
 | 1854 - 412 Seiten
...capsula is covered with a glass cover, and then heated by means of a spirit lamp, to about 144 deg. Fahrenheit. The plate must remain in the capsula half...following acid solution, which will be called normal aciof, must be prepared ; it is composed as follows : — Water 600 parts, nitric acid 45 parts, solution... | |
 | 1854 - 414 Seiten
...capsula is covered with a glass cover, and then heated by means of a spirit lamp, to about 144 deg. Fahrenheit. The plate must remain in the capsula half...Water 600 parts, nitric acid 45 parts, solution of nitrate of potassa 12 parts, solution of common salt 45 parts. These proportions are in volume. The... | |
 | 1854 - 438 Seiten
...capsula is covered with a glass cover, and then heated by means of a spirit lamp, to about 144 deg. Fahrenheit. The plate must remain in the capsula half...be prepared; it is composed as follows : — Water 6OO parts, nitric acid 45 parts, solution of nitrate of potassa 1 2 parts, solution of common salt... | |
 | 1854 - 412 Seiten
...capsula is covered with a glass cover, and then heated by means of a spirit lamp, to about 144 deg. Fahrenheit. The plate must remain in the capsula half...be prepared ; it is composed as follows : — Water (i00 parts, nitric acid 45 parts, solution of nitrate of potassa 12 parts, solution of common salt... | |
 | William Francis, Henry Croft - 1844 - 568 Seiten
...and then heated, by means of a spirit-lamp, to about 144° Fahr. The plate must remain in the capsule half an hour, during which the solution is heated...parts, nitric acid 45 parts, solution of nitrite of potash 12 parts, solution of common salt 45 parts. These proportions are in volume. The normal acid... | |
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Fahrenheit. The plate must remain in the capsula half an hour, during which the solution is heated now and then, and agitated. During that time the following acid solution, which will be called normal acid, must be prepared ; it is composed as follows... 