 | 1847 - 490 páginas
...water-bath until the sulphur is seen to be no longer altered and the liquid has assumed a yellow color; it is then heated to boiling, and kept at this temperature...has been expelled and the liquid has again become colorless. The deposited, or excess of, sulphur is now removed by filtration, and (he liquid evaporated... | |
 | 1847 - 492 páginas
...water-bath until the sulphur is seen to be no longer altered and the liquid has assumed a yellow color ; it is then heated to boiling, and kept at this temperature...has been expelled and the liquid has again become colorless. The deposited, or excess of, sulphur is now removed by filtration, and the liquid evaporated... | |
 | 1847 - 358 páginas
...distillation of 6 oz. prussiate of potash, 3 oz. of the hydrate of sulphuric acid, and 18 oz. water. The mixture is digested in the water-bath until the sulphur...liquid evaporated to crystallization. In this way from 3J to 34 oz. of dazzling white dry sulphocyanide of ammonium are obtained, which may be employed as... | |
 | 1847 - 736 páginas
...six ounces prussiate of potash, ihres ounces >.f the hydrate of sulphuric acid, and eighteen ounces water. This mixture is digested in the waterbath until...temperature until the sulphuret of ammonium has been expelred and the liquid has again become colourless. The deposited, or excess of, sulphur, is now removed... | |
 | 1847 - 490 páginas
...water-bath until the sulphur is seen to be no longer altered and the liquid has assumed a yellow color ; it is then heated to boiling, and kept at this temperature...has been expelled and the liquid has again become colorless. The deposited, or excess of, sulphur is now removed by filtration, and the liquid evaporated... | |
 | 1848 - 636 páginas
...ounces of prussiatc of potash, three ounces of the hydrate of sulphuric acid, and eighteen ounces of water- This mixture is digested in the water-bath...liquid evaporated to crystallization. In this way from 3J to 3j ounces of dazzling white dry sulphocyanide of ammonium are obtained, which may be employed... | |
 | Charles W. Vincent, James Mason - 1848 - 400 páginas
...water-bath until the sulphur is seen to be no longer altered and the liquid has assumed a yellow eolour ; it is then heated to boiling, and kept at this temperature until the sulphuret of ammoninm has been expelled and the liquid has again beeome eolourless. The deposited, or exeess of,... | |
 | Andrew Ure - 1853 - 1034 páginas
...the hydrate of sulphuric acid, and 18 ounces of water. This mixture is digested in the water bath, until the sulphur is seen to be no longer altered,...the sulphuret of ammonium has been expelled and the liquor has again become colourless. The deposit, or excess of sulphur is now removed by filtration,... | |
 | Andrew Ure - 1853 - 1034 páginas
...the hydrate of sulphuric acid, and 18 ounces of water. This mixture is digested in the water bath, until the sulphur is seen to be no longer altered,...the sulphuret of ammonium has been expelled and the liquor has again become colourless. The deposit, or excess of sulphur is now removed by filtration,... | |
 | 1848 - 644 páginas
...water-bath until the sulphur is seen to be no longer altered and the liquid has assumed a yellow colour j it is then heated to boiling, and kept at this temperature...deposited, or excess of, sulphur, is now removed by nitration, and the liquid evaporated to crystallization. In this way from 3J to 3] ounces of dazzling... | |
| |
... of sulphur are added ; and then the product resulting from the distillation of 6 oz. prussiate of potash, 3 oz. of the hydrate of sulphuric acid, and 18 oz. water. This mixture is digested in the water-bath until the sulphur is seen to be no longer... 