Determination of tetra-ethylthiuram disulphide and elemental sulphur in organic extracts using cathode-ray polarography

Taylor, Alannah

doi:10.1016/0039-9140(64)80119-3

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Sulfur and Sulfides1

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1980

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“…A method developed for the determination of sulfides present in vulcanized rubber compounds consists of treatment of the rubber with HC1 in a C02 atmosphere to liberate H2S, absorption of the IRS in cadmium acetate, treatment with iodine, and back-titration with Na2S203 (90). The free sulfur content of CR was obtained by measuring the polarogram of the acetone extract in a solution of sodium acetate in 1:1 methanol and acetic acid (146). In another method, cathode ray polarography was applied to ethyl acetate and isopropyl alcohol extracts of rubber, as well as to rubber solutions prepared with CHCI3 (150).…”

Section: Sulfur and Sulfidesmentioning

confidence: 99%