SILVER

n. Si2lv'u5r. Gr., apyvpac. Lat., argentum. Fr., argent. Ger., Silber. A metal occurring in nature both uncombined and in combination, in the latter case usually as a sulphide. It is soft, lustrous white, very tenacious, malleable, and ductile, melting at 1040 C. It is the best conductor of heat and electricity known. Although usually forming coherent solid ma es, it may be obtained as a fine dark powder (molecular s.); and it is also found in the crystalline form. In compounds it acts as a univalent radicle. Sp. gr., 10'424 to 10'575; atomic weight, 107'66; symbol, Ag (from argentum). [B, 3.] Ammoniated s. chromate. A substance, Ag2CrO4 + NH3, made up of yellow crystals. [B. 3,] Ammoniated s. oxide. Berthollet's fulminating s., a compound of uncertain composition, formed by the action of ammonia on s. oxide. It occurs either as a black powder or as black crystals of metallic aspect violently explosive on the slightest disturbance. [B. 3 ] A i it i monial s. See S. antimonide. Berthollet's fulminating s. See Ammoniated s. oxide. Black s. oxide. Argentic oxide obtained by precipitation and dried till it is black. [B, 159.] Black sulphureted s. An old name for argentite. Brown s. oxide. Freshly precipitated s. oxide which is still moist and brownish. [B, 159.] China s., Chinese s. See ARGENT AN. Crystals of s. Vitriol of s. (see under S. nitrate). [B.] O, no; O", not; O3, whole; Th, thin; Th2, the; U, like oo in [s. 485]