Preparation and reactivity of lepidocrocite under simulated feedwater conditions

Journal Article · Sun Feb 01 04:00:00 EST 1998 · Industrial and Engineering Chemistry Research

DOI:https://doi.org/10.1021/ie9705822· OSTI ID:605709

McGarvey, G B ^[1]; Burnett, K B; Owen, D G ^[2]

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1. Atomic Energy of Canada Ltd., Chalk River, Ontario (Canada). Chalk River Labs.
2. Atomic Energy of Canada Ltd., Pinawa, Manitoba (Canada). Whiteshell Labs.

Lepidocrocite ({gamma}-FeOOH), prepared using several different aging temperatures and aging times, possesses widely varying morphological and structural features. Mean particle dimensions and surface areas were all found to depend on the conditions of the synthesis. Studies of the aqueous reduction of several of the lepidocrocite samples to magnetite indicated that the initial steps in the dissolution-reprecipitation process were influenced by the crystallinity of the material. Results of the morphological studies and the transformation reaction studies are described within the context of corrosion-product generation and stability in secondary feedwater systems of pressurized heavy-water nuclear reactors.

• OSTI ID: 605709
• Journal Information: Industrial and Engineering Chemistry Research, Journal Name: Industrial and Engineering Chemistry Research Journal Issue: 2 Vol. 37; ISSN IECRED; ISSN 0888-5885
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
36 MATERIALS SCIENCE
CANDU TYPE REACTORS
CARBON STEELS
CORROSION PRODUCTS
DISSOLUTION
FEEDWATER
IRON HYDROXIDES
MAGNETITE
MORPHOLOGY
PHASE TRANSFORMATIONS
SECONDARY COOLANT CIRCUITS
SURFACE AREA