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7566118 
Journal Article 
Chloramine T with iodine: A new reagent to determine the iodine value of edible oils 
Nagendrappa, C; Urs, SSR; Rajalakshmi, S 
1998 
Yes 
Journal of the American Oil Chemists' Society
ISSN: 0003-021X
EISSN: 1558-9331 
75 
9 
1219-1221 
WOS:000075979000026 
Chloramine T (N-chloro-p-toluenesulfonamide sodium salt) and iodine (2:1, w/w) in carbon tetrachloride and acetic acid (1:1, vol/vol), referred to as reagent (\) was found to be effective for the determination of iodine value of edible oils. Reagent (\) reacted quantitatively with the double bonds of oils of known weight. The reagent left unreacted after 20-25 min was titrated against standard sodium thiosulfate solution (0.04 M) in presence of potassium iodide (10%, 5 mL). The difference in volume of sodium thiosulfate solution consumed by reagent (\) without and with oil was a basis to calculate the iodine value of oils used. The iodine values of different oils were also determined separately following the standard procedure of Wijs, and calculated iodine value was obtained from the gas chromatographic profile of fatty acids. The iodine value obtained by the new method was in agreement with the results of the standard methods. The results obtained indicate that the method could be a complementary or an alternative to the Wijs method.