 Manufactures. but by the weight or volume of the standard solution of common salt necessary to exactly precipitate the silver previously dissolved in nitric acid. The term of complete . precipitation of the silver can be readily recognised by the cessation...  A Manual of Practical Assaying - Стр. 495авторы: John Mitchell (F.C.S.) - 1868 - Страниц: 697Полный просмотр - Подробнее о книге
 | Andrew Ure - 1844 - Страниц: 756
...perceptible influence on the quantity of sea salt necessary to precipitale the silver ; that is to say, the same quantity of silver, pure or alloyed, requires for its precipitation a constant quantity of the solution of sea salt. Supposing that we operate upon a gramme of pure silver, the solution of sea salt... | |
 | John Mitchell (F.C.S.) - 1846 - Страниц: 450
...perceptible influence on the quantity of salt necessary to precipitate the silver ; that is to say, the same quantity of silver, pure or alloyed, requires for its precipitation a constant quantity of the sea-salt. When mercury is present, a cupel assay must be had recourse to. The method, as proposed by... | |
 | John Mitchell (analytical chemist.) - 1854 - Страниц: 608
...portion of this report has heen puhlished in Dr. Ure-s Dictionary of Arts, Mines, and Manufactures. but by the weight or volume of the standard solution...weight, it shall weigh exactly 100 grammes, or if by measure ICO cubic centimeters. This quantity of salt solution is divided into 1000 parts, called thousandths.... | |
 | Andrew Ure - 1856 - Страниц: 1140
...perceptible influence on the quantity of sea salt necessary to precipitate the silver ; that is to say, the same quantity of silver, pure or alloyed, requires for its precipitation a constant quantity of the solution of sea salt. Supposing that we operate upon a gramme of pure silver, the solution of sea salt... | |
 | Andrew Ure - 1860 - Страниц: 972
...the quantity of sea salt necessary to precipitate the silver ; that is to say, the same quantitity of silver, pure or alloyed, requires for its precipitation a constant quantity of the solution of sea salt. Supposing that we operate upon a gramme of pure silver, the solution of вел... | |
 | Andrew Ure - 1867 - Страниц: 1006
...the quantity of sea salt necessary to precipitate the silver ; that is to say, the same quintitity of silver, pure or alloyed, requires for its precipitation a constant quantity of the solution of sea salt. Supposing that we operate upon a gramme of pure silver, the solution of sea salt... | |
 | John Mitchell (F.C.S.) - 1868 - Страниц: 802
...is based on the following principles : — The alloy, previously dissolved in nitric acid (NO6), is mixed with a standard solution of common salt, which...whole of the silver ought to be of such strength that, Fio. 82. if it be measured by weight, it shall weigh exactly 100 grammes, or if by volume 100 cubic... | |
 | John Mitchell (F.C.S.) - 1868 - Страниц: 840
...weight, which would be less exact and occupy too much time, but by the weight or volume of the Handard solution of common salt necessary to exactly precipitate...a constant quantity of the standard salt solution. if it be measured by weight, it shall weigh exactly 100 grammes, or if by volume 100 cubic centimetres.... | |
 | Manuel Eissler - 1889 - Страниц: 378
...to be perceptible. The presence of copper, lead, or any other metal, with the exception of mercury, in the silver solution has no sensible influence on...weight it shall weigh exactly 100 grammes, or if by measure 100 cubic centimetres. This quantity of salt solution is divided into 1,000 parts; and the... | |
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