Differential potentiometric determination of perchlorate and iodide ions in industrial wastes (in Russian)
The determination of perchlorates and iodides present together in industrial wastes is hampered by the fact that these anions either are precipitated by the same organic reagents or form colored complexes with similar absorption maxima. Determining them by separation or by deducting one from their sum is a multi-step analysis which takes more time and decreases accuracy. In this paper, the authors report a rapid, single-step determination of co-present perchlorate and iodide by precipitative titration with nitron solution and potentiometric indication of the equivalence point by a perchlorate-selective membrane electrode. The perchlorate and iodide determinations were unaffected by surfactant, suspensions, and ions not precipitated with nitron. A single analysis takes 15-20 minutes. This method may also be used for analyzing single salts.
- Research Organization:
- D. I. Mendeleev Institute of Chemical Engineering, Moscow, USSR
- OSTI ID:
- 6181158
- Journal Information:
- Ind. Lab. (Engl. Transl.); (United States), Journal Name: Ind. Lab. (Engl. Transl.); (United States) Vol. 52:6; ISSN INDLA
- Country of Publication:
- United States
- Language:
- Russian
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54 ENVIRONMENTAL SCIENCES
ALKALI METAL COMPOUNDS
ANIONS
CHARGED PARTICLES
CHEMICAL ANALYSIS
CHEMICAL PLANTS
CHLORINE COMPOUNDS
COMPARATIVE EVALUATIONS
EFFICIENCY
HALIDES
HALOGEN COMPOUNDS
INDUSTRIAL PLANTS
INDUSTRIAL WASTES
INORGANIC PHOSPHORS
IODIDES
IODINE COMPOUNDS
IONS
LIQUID WASTES
MULTI-ELEMENT ANALYSIS
OXYGEN COMPOUNDS
PERCHLORATES
PHOSPHORS
PHOTOMETRY
POLLUTION ABATEMENT
POTASSIUM COMPOUNDS
POTASSIUM IODIDES
POTASSIUM PERCHLORATES
POTENTIOMETRY
PRECIPITATION
QUANTITATIVE CHEMICAL ANALYSIS
QUANTITY RATIO
REAGENTS
SEPARATION PROCESSES
SODIUM COMPOUNDS
SODIUM PERCHLORATES
TITRATION
WASTES
WATER POLLUTION ABATEMENT