a. Chem. [f. SULPHO- + CYANIC.] Designating the sulpho-acid related to cyanic acid, occurring in cruciferous plants and in human saliva, and obtainable as a colorless liquid: now THIOCYANIC.
1819. J. G. Children, Chem. Anal., 326. Mr. Porrett concludes the composition of sulphocyanic acid to be … Sulphur … 100, Hydrocyanic acid … 53.
1830–1. Lancet, I. 33/2. It has long since been discovered, that the sulphocyanic acid and its salts possess the same action with the persalts of iron as the meconic acid.
1868. Watts, Dict. Chem., V. 515. Sulphocyanic anhydride … is formed by the action of cyanic iodide on argentic sulphocyanate.
Hence Sulphocyanate, -cyanide (in Photography, short for ammonium sulphocyanide), † -cyanodide, † -cyanuret, a salt of sulphocyanic acid.
1830–1. Lancet, I. 33/2. No attempt has been made to ascertain whether the *sulphocyanate of iron might be formed at all during the process for detecting opium.
1897. Naturalist, 42. Sulphides and sulphocyanates of an alcoholic body termed allyl.
1841. Penny Cycl., XX. 358/1. The saliva … is composed of a great proportion of water,… holding in solution… very minute quantity of *sulpho-cyanide of potassium.
1890. Anthony’s Photogr. Bull., III. 221. Sulphocyanide of silver is substituted for bromide.
1907. Westm. Gaz., 13 April, 14/2. A toning-bath in very common use is the sulphocyanide bath.
1838. T. Thomson, Chem. Org. Bodies, 768. *Sulpho-cyanodide of mercury gives the same products as sulphuret of cyanogen; but instead of sulphur, we obtain sulphuret of mercury.
1833. Rees, trans. Berzelius’ Anal. Inorg. Bodies, 135. When the hydrogen of the acid unites with the sulphur of the base to form sulphureted hydrogen, a metallic *sulphocyanuret remains.
