Oxygen-18 and deuterium isotope effect on the freezing-point of dilute water + dioxan solutions

G. Jancsó, Hédy Illy, Dieter Staschewski

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Abstract

Freezing points of dilute H2 16O, D2 16O and H2 18O + dioxan solutions were measured by equilibrium technique in the concentration range 0.03 to 0.8 mol kg -1. No isotope effect on the association factor of water was found within the precision of the measurements, estimated as being about ±2.5%, therefore the anomalously low dimerization constant of H2 18O earlier reported in the literature must be due to some experimental error.

Original languageEnglish
Pages (from-to)2203-2210
Number of pages8
JournalJournal of the Chemical Society, Faraday Transactions 1: Physical chemistry in Condensed Phases
Volume72
DOIs
Publication statusPublished - 1976

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oxygen 18
Dimerization
Deuterium
dimerization
Freezing
Isotopes
isotope effect
melting points
deuterium
Association reactions
Oxygen
Water
water
1,4-dioxane

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

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abstract = "Freezing points of dilute H2 16O, D2 16O and H2 18O + dioxan solutions were measured by equilibrium technique in the concentration range 0.03 to 0.8 mol kg -1. No isotope effect on the association factor of water was found within the precision of the measurements, estimated as being about ±2.5{\%}, therefore the anomalously low dimerization constant of H2 18O earlier reported in the literature must be due to some experimental error.",
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AU - Jancsó, G.

AU - Illy, Hédy

AU - Staschewski, Dieter

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N2 - Freezing points of dilute H2 16O, D2 16O and H2 18O + dioxan solutions were measured by equilibrium technique in the concentration range 0.03 to 0.8 mol kg -1. No isotope effect on the association factor of water was found within the precision of the measurements, estimated as being about ±2.5%, therefore the anomalously low dimerization constant of H2 18O earlier reported in the literature must be due to some experimental error.

AB - Freezing points of dilute H2 16O, D2 16O and H2 18O + dioxan solutions were measured by equilibrium technique in the concentration range 0.03 to 0.8 mol kg -1. No isotope effect on the association factor of water was found within the precision of the measurements, estimated as being about ±2.5%, therefore the anomalously low dimerization constant of H2 18O earlier reported in the literature must be due to some experimental error.

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