 Expert artists however make these additional applications while the piece remains in the furnace, though the practice is said to be highly noxious, on account of the mercurial fumes. After this it is rubbed with gilders...  The Philosophy of Experimental Chemistry - الصفحة 42بواسطة James Cutbush - 1813 - عدد الصفحات: 694عرض كامل - لمحة عن هذا الكتاب
 | Friedrich Christian Accum - 1803 - عدد الصفحات: 384
...to time with water. The piece is then laid upon a grate, over a charcoal fire, or in a small oven, or furnace, adapted to this purpose ; the heat drives...may be remedied by successive applications of more amalgam, and additional application of heat. Expert artists however make these additional applications... | |
 | Friedrich Christian Accum - 1808 - عدد الصفحات: 492
...case, the alloy must be laid on as uniformly as possible, and spread very even with a brass-wire brush, wetted from time to time with water. The piece is...to be highly noxious, on account of the mercurial fumes. After this it is rubbed with gilders wax, which may consist of four ounces of bees wax, one... | |
 | William Nicholson - 1808 - عدد الصفحات: 900
...The piece is then laid upon a grate, over a charcoal fire, or in a small oven or furnace adapted u> this purpose. The heat drives off the mercury, and...may be remedied by successive applications of more amalgam, and additional application of heat. TUe expert artists, however, make these additional applications... | |
 | Andrew Ure - 1821 - عدد الصفحات: 418
...grate, over a charcoal fire, or in a small oven or furnace adapted to this purpose. The heat drives oft' the mercury, and leaves the gold behind. Its defects...may be remedied by successive applications of more amalgam, and additional application of heat. The expert artists however, make these additional applications... | |
 | Andrew Ure - 1821 - عدد الصفحات: 512
...time with fair water. The piece is then laid upon a grate, over a charcoal fire, or in a small oven or furnace adapted to this purpose. The heat drives off the mercury, and leave« the gold behind. Its defects are then »etn, and may be remedied by successive applications... | |
 | Andrew Ure - 1831 - عدد الصفحات: 980
...time with fair water. The piece is then laid upon a grate over a charcoal fire, or in a small oven or furnace adapted to this purpose. The heat drives...the mercury, and leaves the gold behind. Its defects arc then seen, and may be remedied by successive applications of more amalgam, and additional application... | |
 | عدد الصفحات: 458
...a grate over a charcoal fire or in a small oven or furnace adapted to this purpose. The heat drivel off the mercury and leaves the gold behind. Its defects...may be remedied by successive applications of more amalgam and additional application of heat. The expert artists, however^ make these additional applications... | |
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