Published 1999 | Version v1
Journal article Metadata-only

Investigation of stability of Na-Al-phosphate glass containing 90Sr and 137Cs radioactive isotopes in contact with water at T=25-350 deg C and P=Psat-500 bar

Creators

  • 1. RAN, Inst. Ehksperimental'noj Mineralogii, Chernogolovka (Russian Federation)

Description

The numerical investigation of phase equilibria was conducted in model system (Na, Cs)2O-SrO-Al2O3-P2O5-H2O at 25-350 deg C and P=Psat-500 bar. Cesium was not formed its own phases. It was contained in readily soluble hydrated sodium phosphates. Strontium formed own difficultly soluble phases. The equilibria of hydratation, hydrolysis and mutual solubility of these phases were studied. Modeling of local-equilibrium carrying out of phosphorus from system under running water effect was conducted. Strontium hydroxide-apatite and goyazite in association with diaspore were appeared the most stable phases

Additional details

Additional titles

Original title (Russian)
Исследование устойчивости На-Ал-фосфатного стекла, содержащего радиоактивные изотопы

Publishing Information

Journal Title
Radiokhimiya
Journal Volume
41
Journal Issue
1
Journal Page Range
p. 90-94
ISSN
0033-8311
CODEN
RADKAU

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
30049901
Subject category
S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY; S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES;
Descriptors DEI
CESIUM 137; CHEMICAL COMPOSITION; CHEMICAL STATE; HYDROLYSIS; LEACHING; PHOSPHATE GLASS; SOLUBILITY; STABILITY; STRONTIUM 90; VITRIFICATION
Descriptors DEC
ALKALINE EARTH ISOTOPES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CESIUM ISOTOPES; CHEMICAL REACTIONS; DECOMPOSITION; DISSOLUTION; EVEN-EVEN NUCLEI; GLASS; INTERMEDIATE MASS NUCLEI; ISOTOPES; NUCLEI; ODD-EVEN NUCLEI; RADIOISOTOPES; SEPARATION PROCESSES; SOLVOLYSIS; STRONTIUM ISOTOPES; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
12 refs., 2 figs., 3 tabs.