Published June 1986 | Version v1
Report Metadata-only

Evaluation of new pH control agents for PWR secondary water systems. Final report

Creators

Description

This report presents an account of work evaluating new organic pH control agents for PWR station secondary systems. A discussion of corrosion control with pH controlling amines is given together with some information on current utility practice with volatile amines. The report describes opportunities for improved corrosion control with new pH controlling amines and the selection of candidates for laboratory evaluation. Progress on EPRI program RP 1571-7, ''Spectroscopic Characterization Methods for New pH Control Agents'', is presented. Also presented is an outline of the second phase of the RP 1571-7 program which was directed toward ''Evaluation of pH Control Agents in Simulated Steam Generator Tubesheet Crevice Environments.'' Quinuclidine and diaminopropane were evaluated using laser Raman spectroscopy. Hydrothermal stability and pH properties at temperature were determined. Quinuclidine was superior to diaminopropane and presents advantages over ammonia, hydrazine and morpholine for plant use as a pH control agent. It was further evaluated in tests with a scaled PWR crevice simulator for corrosion compatibility as well as pH control. 17 refs., 22 figs., 9 tabs

Availability note (English)

Research Reports Center, Box 50490, Palo Alto, CA 94303.

Additional details

Publishing Information

Imprint Pagination
62 p.
Report number
EPRI-NP--4624

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
17073754
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
ALGORITHMS; CHEMICAL PROPERTIES; CORROSION PROTECTION; EVALUATION; HIGH TEMPERATURE; PH VALUE; PHYSICAL PROPERTIES; PWR TYPE REACTORS; SECONDARY COOLANT CIRCUITS; THERMAL DEGRADATION; WATER; WATER TREATMENT
Descriptors DEC
COOLING SYSTEMS; ENRICHED URANIUM REACTORS; HYDROGEN COMPOUNDS; OXYGEN COMPOUNDS; POLAR SOLVENTS; POWER REACTORS; REACTOR COMPONENTS; REACTOR COOLING SYSTEMS; REACTORS; SOLVENTS; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS