 | William Newton, Charles Frederick Partington - 1844 - 508 Seiten
...distilled water. It is taken again with the glass spoon, and plunged in the capsula containing alcohotised potash. This capsula is covered with its glass cover,...that time the following acid solution, which will he called normal acid, must be prepared ; it is composed as follows : — Water 600 parts, nitric acid... | |
 | 1844 - 506 Seiten
...capsula containing alcoholised potash. This capsula is covered with its glass cover, and then heated, by means of a spirit-lamp, to about 144° Fahrenheit....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...normal acid, must be prepared ; it is composed as follows : — Water 600 parts, nitric acid 4-5 parts, solution of nitrite of potash 12 parts, solution... | |
 | 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 be prepared: it is composed as follows: — Water 600 parts, nitric acid 45 parts, solution of nitrite of potassa 12 parts, solution... | |
 | 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 - 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...normal acid, must be prepared ; it is composed as follows : — Water (i00 parts, nitric acid 45 parts, solution of nitrate of potassa 12 parts, solution... | |
 | 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...called normal acid, must be prepared; it is composed as follows : — Water 6OO parts, nitric acid 45 parts, solution of nitrate of potassa 1 2 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...normal acid, must be prepared ; it is composed as follows : — Water 600 parts, nitric acid 45 parts, solution of nitrate of potassa 12 parts, solution... | |
 | 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...normal acid, must be prepared ; it is composed as follows : — Water 600 parts, nitric acid 45 parts, solution of nitrite of potash 12 parts, solution... | |
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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... 