ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

A new method of sulfur determination

D. Prístavka and Z. Votický

Slovak Technical University, Bratislava

Abstract: A modification of the classical Carius method is reported. The oxidation is carried out by KI, HNO₃, HCl which takes place in 20-40 min. To 0.05-0.1 g. sample add 0.25-0.3 g. KI, moisten with H₂O, add 10 ml. HNO₃, fume, and add 10 ml. HCl. Heat until the soln. decolorizes, cool, and dil. to 100-150 ml. with H₂O. If on diln. a ppt. is formed, add an addnl. amt. of the oxidation mixt. S is then detd. either gravimetrically as BaSO₄ or titrimetrically after pptn. with benzidine-HCl. The method is satisfactory for both org. and inorg. compds. The deviation from the classical Carius method was found to be in the range of 0.04 to 0.39%.

Full paper in Portable Document Format: 51-2a1.pdf (in Slovak)

Chemical Papers 5 (1-2) 1–3 (1951)