 Other and common reds are given by the oxyd of iron, but this requires the mixture of alumine, or some other substance refractory in the fire, otherwise at a full red heat the colour will degenerate into black.  The circle of the mechanical arts - Seite 321von Thomas Martin (civil engineer.) - 1813Vollansicht - Über dieses Buch
 | Edward Polehampton - 1815 - 710 Seiten
...colour will degeuerate into black. Yellow is given either by the oxyd of silver alone, or by the oxyds of lead and antimony, with similar mixtures to those...iron. The silver is as tender a colour as gold, and readily injured or In i in a high heat. Green is given by the oxyd of copper, or it may also be pro.... | |
 | Edward T W. Polehampton - 1815 - 688 Seiten
...of a candle. Gold colours will not bear a violent fire. Other and common reds are given by the oxj d of iron, but this requires the mixture of alumine,...other substance refractory in the fire, otherwise at a full red heat the colour will degeoe. rate into black. Yellow is given either by the oxyd of silver... | |
 | Edward T W. Polehampton - 1815 - 712 Seiten
...of a candle. Gold colours will not bear a violent fire. Other and common reds are given by the oxyd of iron, but this requires the mixture of alumine,...other substance refractory in the fire, otherwise at a full red heat the colour will degenerate into black. Yellow is given either by the oxyd of silver... | |
 | Colin MacKenzie - 1821 - 724 Seiten
...not bear a violent fire. Observation. Other, and common reds, are given by the oxide of iron ; hut this requires the mixture of alumine, or some other substance refractory in the fire, otherwise at a full red heat, the colour will degenerate into black. 486* co term ixc AND BLEACHING. Doccxxxvm.... | |
 | Colin Mackenzie - 1822 - 774 Seiten
...either by the Oxide of Silver alone, or by the Oxides of Lead and Antimony, with similar mixtures tc those required for iron. The silver, is as tender a colour as gold, and is readily injured or lost in a high heat. DCCCXXXIX. GREUM ENAMEL. Green is given by the Oxide of... | |
 | Thomas Curtis - 1829 - 834 Seiten
...requires much skill in the artist to be fully brought out. Other and commoner reds are given by the oxides of iron, but this requires the mixture of alumine,...other substance refractory in the fire ; otherwise «hat would, under proper circumstances, be a full red will degenerate into a black. Yellow is either... | |
 | 1842 - 496 Seiten
...of a candle. Gold colors will not bear a violent fire. Other and common reds are given by the oxide of iron ; but this requires the mixture of alumine,...other substance, refractory in the fire, otherwise at a full red heat the color will degenerate into black. Yellow Enamel. — Yellow is given either... | |
 | Colin MacKenzie - 1853 - 498 Seiten
...afterwards receive its colour by the flame of a candle. Other, and common reds, are given by the oxide of iron; but this requires the mixture of alumine,...other substance refractory in the fire, otherwise at a full red heat, the colour will degenerate into black. To prepare thcfoixfor enamelling an flat*... | |
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