 When it is wished to spot the horn in imitation of tortoise shell, metallic solution, must be employed, as follows. To spot it red, a solution of gold in aqua regia must be employed ; to spot it black, a solution of silver in nitric acid must be used...  American Mechanics' Magazine - Seite 2181825Vollansicht - Über dieses Buch
 | 1825 - 546 Seiten
...it makes the horn dry promptly. When it is wished to spot the horn iu imitation of tortoise-shell, metallic solution must be employed, as follows. To-...silver in nitric acid must be used ; and for brown, a Iiot solution of mercury in nitric acid. The right side of the horu must be impregnated with these... | |
 | 1825 - 484 Seiten
...it makes the horn dry promptly. , When it is wished to spot the horn in imitation of tortoise-shell, metallic solution must be employed, as follows. To...solution of silver in nitric acid must be used ; and for browu, a hot solution of mercury in nitric acid. The right side of the horn must be impregnated with... | |
 | William Newton, Charles Frederick Partington - 1825 - 442 Seiten
...it makes the horn dry promptly. When it is wished to spot the horn in imitation of tortoise-shell, metallic solution must be employed as follows. — To spot it red, a solution of gold in aqua riga must be employed ; to spot it black, a solution of silver ra nitric acid must be used ; and for... | |
 | 1826 - 490 Seiten
...metallic. solution must be employed ~*8 : — To spot it red, a solution of gold in aqua rigia mast be employed ; to spot it black, a solution of silver...The right side of the horn must be impregnated with those solutions, and they will assume the colour intended. The brown spots can be produced on the horn... | |
 | Thomas Antisell - 1852 - 728 Seiten
...spot the horn in imitation of tortoise shell, metallic soIntion must be employed ns follows : To epot it red, a solution of gold in aqua regia must be employed ; to spot it black, isolation of silver in nitric acid must be used ; and for brown, a hot solution of mercury in nitric... | |
 | G.P. Putnam & Co - 1852 - 728 Seiten
...in imitation of tortoise shell, metallic solution must be employed as follows : To spot it red, я solution of gold in aqua regia must be employed ; to spot it black, » solution of silver in nitric acid must be used : and for brown, a hot solution of mercury in nitric... | |
 | Andrew Ure - 1867 - 918 Seiten
...dry promptly. When it is wished to spot the horn in imitation of tortoise shell, metallic solutions must be employed as follows : — To spot it red,...be impregnated with these solutions, and they will ásenme the colours intended. The brown spots can be produced on the horn by means of a paste made... | |
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