PB Deshpande, PK Luthra… - US Patent 7,863,462, 2011 - Google Patents ... a purification pro- cess for Ropinirole hydrochloride by treating Ropinirole free base with a reducing agent and then converting it to pure Ropinirole hydrochloride; The reducing agent is selected from sodium metabisulfite, sodiumhyposulfite, sodium hydrosulfite, hydroxylamine ... Related articles - All 4 versions
[PDF] from srce.hrY Zhang… - Chemical and Biochemical Engineering Quarterly, 2011 - hrcak.srce.hr ... Titrate with 0.1 mol L–1 sodiumhyposulfite, adding 3 mL of starch indicator solution (1 %), determining the endpoint potentio- metrically, and continue the titration until the blue color disappears. ... Each mL of 0.1 mol L–1 sodiumhyposulfite is equivalent to 5.585 mg of Fe (iron). ... Related articles - View as HTML - All 5 versions
HT Zou, HL Gan, LX Wang… - Advanced Materials Research, 2011 - Trans Tech Publ ... sample. Resistance of oxidant and reducing agent The PLA fibers were immersed in hydrogen peroxide (H2O2) and sodiumhyposulfite (Na2S2O4) solutions with 1g/L, 5g/L and 10g/L at room temperature for 30 min. After the ...
LJ Kricka - Clinical Chemistry, 2011 - Am Assoc Clin Chem ... It was an instant success. A more lasting solution to image fixing resulted from the observation made by the astronomer Sir John Herschel (1792–1871) that sodium hyposulfite (thio- sulfate) had silver-dissolving properties. It ...
MH Dominiczak - Clinical Chemistry, 2011 - Am Assoc Clin Chem ... It was an instant success. A more lasting solution to image fixing resulted from the observation made by the astronomer Sir John Herschel (1792–1871) that sodiumhyposulfite (thiosulfate) had silver-dissolving properties. It was Hershel who first used the term "photography.". ...
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