Solubility of sodium tungstate in nitrate-nitrite melts

Journal Article · Mon Oct 10 04:00:00 EDT 1988 · J. Appl. Chem. USSR (Engl. Transl.); (United States)

OSTI ID:6086467

Yurkinskii, V P; Firsova, E G; Morachevskii, A G; Sazanova, O B

Nitrate melts are employed as electrolytes for the electrochemical oxidation of tungsten. The authors studied the solubility of sodium tungstate in a number of nitrate-nitrite melts. The investigations were carried out in individual melts of NaNO/sub 3/ and NaNO/sub 2/ and in LiNO/sub 3/-NaNO/sub 3/-KNO/sub 3/ and NaNO/sub 3/-KNO/sub 3/ eutectic mixtures in the 440-690 K temperature range in an atmosphere of argon. The solubility of sodium tungstate increases slightly upon the transition from an LiNO/sub 3/-NaNO/sub 3/-KNO/sub 3/ melt to an NaNO/sub 3/-KNO/sub 3/ melt. The solubility of Na/sub 2/WO/sub 4/ in sodium nitrite is considerably higher than that in sodium nitrate.

• OSTI ID: 6086467
• Journal Information: J. Appl. Chem. USSR (Engl. Transl.); (United States), Journal Name: J. Appl. Chem. USSR (Engl. Transl.); (United States) Vol. 61:4; ISSN JAPUA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
360602* -- Other Materials-- Structure & Phase Studies
ALKALI METAL COMPOUNDS
CHEMICAL REACTIONS
CHEMISTRY
COMPARATIVE EVALUATIONS
DISSOLUTION
ELECTROCHEMISTRY
ELECTROLYTES
ELEMENTS
LEAST SQUARE FIT
LITHIUM COMPOUNDS
LITHIUM NITRATES
MAXIMUM-LIKELIHOOD FIT
METALS
MOLTEN SALTS
NITRATES
NITRITES
NITROGEN COMPOUNDS
NUMERICAL SOLUTION
OXIDATION
OXYGEN COMPOUNDS
POTASSIUM COMPOUNDS
POTASSIUM NITRATES
QUANTITY RATIO
SALTS
SATURATION
SODIUM COMPOUNDS
SODIUM NITRATES
SODIUM TUNGSTATES
SOLUBILITY
TEMPERATURE DEPENDENCE
TRANSITION ELEMENTS
TUNGSTATES
TUNGSTEN