ANALYTICAL METHOD FOR THE DETERMINATION OF DISSOLVED OXYGEN IN BOILER FEED WATER AND CONDENSATES

Technical Report · Mon Jan 01 04:00:00 EST 1962

OSTI ID:4819838

A sample of water is taken in a specially designed bottle. A solution containing potassium hydroxide, potassium iodide, and potassium iodate is added, followed by a solution of manganous sulfate and then sulfuric acid. During the addition of the reagents nitrogen is passed over the surface of the sample to prevent interference by atmospheric oxygen. Iodine is released equivalent to the dissolved oxygen and is determined by adding an excess of sodium thiosulfate and back titrating with potassium iodate using an amperometric end point. Precision is plus or minus O.OO1 ppm. The method is valid for the concentration range 0.003 to 0.03 ppm for the type of water used at Calder and Advanced Gas Cooled Reactors. Higher concentrations can be determined by slight modifications to the method, but normally less exacting procedures are adequate for the higher oxygen levels. (auth)

• Research Organization: United Kingdom Atomic Energy Authority. Production Group, Windscale, Sellafield, England
• NSA Number: NSA-16-023610
• OSTI ID: 4819838
• Report Number(s): PG-Report-335
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

AMPEROMETRY
BOILING
CHEMICAL REACTIONS
CHEMISTRY
EFFICIENCY
ELECTRICITY
IODIC ACID
IODINE
MANGANESE SULFATES
MINERAL ACIDS
NITROGEN
OXYGEN
POTASSIUM COMPOUNDS
POTASSIUM HYDROXIDES
POTASSIUM IODIDES
QUALITATIVE ANALYSIS
QUANTITATIVE ANALYSIS
REACTORS
SAMPLING
SODIUM COMPOUNDS
SOLUTIONS
SULFATES
SULFITES
SULFURIC ACID
THIOSULFATES
TITRATION
TRACE AMOUNTS
VESSELS
WATER