DETERMINATION OF RESIDUAL CHLORINE IN CHLORINATED SEA WATER
A spectrophotometric method is reported for determining residual chlorine in chlorinated sea water; it is based on the bleaching action of chlorine on methyl orange. Anions such as sulfate, acetate, phosphate, and nitrate do not interfere. Large amounts of weak oxidizing agents, such as ferric iron, cupric copper, and iodine in potassium iodide, do not oxidize the indicator under the given experimental conditions. Hydrogen peroxide, potassium dichromate, and hydrated manganese dioxide react slowly, and bromine and permanganate react in the same way as chlorine. The method does not measure the combined residual chlorine in the absence of bromide ion in the sample. (auth)
- Research Organization:
- Atomic Energy Establishment, Trombay, India
- NSA Number:
- NSA-16-031562
- OSTI ID:
- 4787902
- Journal Information:
- Analyst, Journal Name: Analyst Vol. Vol: 87
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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