Properties of aqueous thorium nitrate solutions. Part 1. - Densities, viscosities, conductivities, pH, solubility and activities at freezing point

Alexander Apelblat, David Azoulay, Ayala Sahar

Research output: Contribution to journalArticlepeer-review

43 Scopus citations

Abstract

The solubility of Th(NO3)4 in water is a linear function of temperature in the range 5-60°C. The density was measured at concentrations up to saturation, at 25-60°C, and the conductivity and pH of Th(NO3)4 solutions were determined at the same temperatures. The equivalent conductivity at infinite dilution was 72, 89, 104, 123 Ω-1 cm2 equiv.-1, at 25, 35, 45, 60°C, respectively, after correction for a hydrolysis reaction. The viscosity increases greatly at about 1 mol l.-1 concentration. Depression of freezing points was determined, the lowest point attained being -37°C, which corresponds to a 2.9 mol kg-1 solution.

Original languageEnglish
Pages (from-to)1618-1623
Number of pages6
JournalPhysical Chemistry Chemical Physics
Volume69
DOIs
StatePublished - 1 Dec 1973
Externally publishedYes

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