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Iodine cyanide as volumetric oxidant
R C Paul1, R K Chauhan, N C Sharma
1Department of Chemistry, Panjab University, Chandigarh, India.
Iodine cyanide is a new oxidant for determining various substances like iodide and ascorbic acid. It works in different acidic solutions using visual or potentiometric detection methods.
Area of Science:
- Analytical Chemistry
- Inorganic Chemistry
Background:
- Accurate determination of various analytes is crucial in chemical analysis.
- Development of novel oxidants can enhance analytical methodologies.
Purpose of the Study:
- To introduce iodine cyanide as a versatile oxidant.
- To establish its utility for the quantitative determination of specific analytes.
Main Methods:
- Iodine cyanide was employed as an oxidizing agent.
- Analytes included iodide, sulphite, thiosulphate, thiocyanate, arsenic(III), antimony(III), tin(II), mercury(I), iron(II), ascorbic acid, and beta-naphthol.
- Determination was performed in various acidic media (aqueous mineral acids, glacial acetic acid, 1:1 acetic acid-acetic anhydride).
- End-point detection utilized visual and potentiometric techniques.
Main Results:
- Iodine cyanide demonstrated effectiveness as an oxidant for the specified analytes.
- The method is applicable across a range of acidic conditions.
- Both visual and potentiometric titrations provided reliable end-point detection.
Conclusions:
- Iodine cyanide is a viable and effective oxidant for the determination of a diverse set of inorganic and organic compounds.
- The developed method offers flexibility in terms of solvent choice and detection technique.
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