This compound differs from those last described in being soluble in water. The dry salt fuses on being heated, and is reduced by a higher temperature, or by exposure to light.
SILVER, SULPHURET OF.
Symbol, AgS. Atomic weight, 124.
This compound is formed by the action of Sulphur upon metallic Silver, or of Sulphuretted Hydrogen or Hydrosulphate of Ammonia upon the Silver salts; the decomposition of Hyposulphite of Silver also furnishes the black Sulphuret.
Sulphuret of Silver is insoluble in water, and nearly so in those substances which dissolve the Chloride, Bromide, and Iodide, such as Ammonia, Hyposulphites, Cyanides, etc.; but it dissolves in Nitric Acid, being converted into soluble Sulphate and Nitrate of Silver. (For a further account of the properties of the Sulphuret of Silver, see [page 146].)
Symbol, AgO NO5. Atomic weight, 170.
The preparation and properties of this salt have been explained at pages 12 and 362.
SILVER, NITRITE OF.
Symbol, AgO NO3. Atomic weight, 154.