Thiocyanic acid

Thiocyanic acid

Thiocyanic acid is the chemical compound with the formula HSCN. It is unstable with respect to the isomeric isothiocyanic acid, HNCS. [Holleman, A. F.; Wiberg, E. "Inorganic Chemistry" Academic Press: San Diego, 2001. ISBN 0-12-352651-5.] It is known mostly in its salt forms.

HSCN is predicted to have a triple bond between carbon and nitrogen. It has been observed spectroscopically but has not been isolated as a pure substance. [Wierzejewska, M.; Mielke, Z. “Photolysis of Isothiocyanic Acid HNCS in Low-Temperature Matrices. Infrared Detection of HSCN and HSNC Isomers.” Chemical Physics Letters (2001), volume 349, pages 227-234.]

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  • thiocyanic acid — [thī΄ōsī an′ik] n. [ THIO + CYANIC] a colorless, unstable liquid, HSCN, with a penetrating odor, known chiefly in the form of its salts …   English World dictionary

  • thiocyanic acid — tiocianato rūgštis statusas T sritis chemija formulė HSCN atitikmenys: angl. rhodanic acid; thiocyanic acid rus. родановодород; тиоциановая кислота ryšiai: sinonimas – rodanido rūgštis sinonimas – vandenilio nitridotiokarbonatas (1–) …   Chemijos terminų aiškinamasis žodynas

  • thiocyanic acid — noun an unstable acid that can be obtained by distilling a thiocyanate salt • Hypernyms: ↑acid * * * |thī(ˌ)ō+... noun Etymology: thiocyanic International Scientific Vocabulary thi + cyanic : an unstable liquid acid HSCN or HNCS of strong odor… …   Useful english dictionary

  • thiocyanic acid — HS–CN; hydrogen thiocyanate. SYN: rhodanic acid, sulfocyanic acid. * * * thio·cy·an·ic ac·id (thi″o si anґik) the molecular species H S C N; aqueous solutions are an equilibrium mixture of thiocyanic and isothiocyanic acid and are very… …   Medical dictionary

  • thiocyanic acid — /thuy oh suy an ik, thuy /, Chem. an unstable acid, HSCN, known chiefly in the form of its salts. [1875 80; THIO + CYANIC ACID] * * * …   Universalium

  • thiocyanic acid — thi′o•cy•an′ic ac′id [[t]ˈθaɪ oʊ saɪˈæn ɪk, ˌθaɪ [/t]] n. chem. an unstable acid, HSCN, known chiefly in the form of its salts • Etymology: 1875–80 …   From formal English to slang

  • thiocyanic acid — /ˌθaɪoʊsaɪˌænɪk ˈæsəd/ (say .thuyohsuy.anik asuhd) noun an unstable acid, HSCN, known chiefly in the form of its salts …  

  • thiocyanic acid — noun a poisonous unstable liquid, HSCN; its salts and esters, the thiocyanates have a variety of uses …   Wiktionary

  • thiocyanic — adj. of thiocyanic acid (Chemistry) …   English contemporary dictionary

  • thiocyanic — thio·cy·an·ic sī an ik adj of, relating to, or being a colorless unstable liquid acid HSCN of strong odor …   Medical dictionary

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