Published October 1977 | Version v1
Journal article Metadata-only

Coexistence curve of D2O + deuterated isobutyric acid

Creators

  • 1. National Bureau of Standards, Washington, D.C. (USA). Inst. for Basic Standards

Description

We report precise data on the densities of the coexisting liquid phases near the liquid-liquid critical point in D2O + deuterated isobutyric acid. The result for the critical exponent β(0.315 +- 0.008) is consistent with our earlier work on H2O + isobutyric acid, with other work on critical points in fluids, and with current theoretical preductions. The effect of deuteration is to increase the miscibility gap. (orig.)

Abstract (German)

Wir geben praezise Fakten ueber die Dichte koexistierender Phasen in der Naehe des fluessig-fluessigen kritischen Punktes in D2O + deuterierter Isobuttersaeure an. Das Ergebnis fuer den kritischen Exponenten β(0,315 +- 0,008) stimmt mit unseren frueheren Arbeiten ueber H2O + Isobuttersaeure, mit anderen Arbeiten ueber kritische Punkte in Fluessigkeiten, und mit heutigen theoretischen Vorhersagen ueberein. Der Effekt der Deuterierung ist die Vergroesserung der Mischungsluecke. (orig.)

Additional details

Identifiers

DOI
10.1002/bbpc.19770811046;

Publishing Information

Journal Title
Berichte der Bunsengesellschaft für physikalische Chemie
Journal Volume
81
Journal Issue
10
Series
Ber. Bunsenges. Phys. Chem.
Journal Page Range
1079-1081
ISSN
0005-9021

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
9375459
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
DEUTERIUM COMPOUNDS; EQUATIONS OF STATE; EQUILIBRIUM; HEAVY WATER; ISOBUTYRIC ACID; ISOTOPE EFFECTS; PHASE TRANSFORMATIONS; SOLUTIONS; THERMODYNAMICS
Descriptors DEC
CARBOXYLIC ACIDS; DISPERSIONS; EQUATIONS; HOMOGENEOUS MIXTURES; HYDROGEN COMPOUNDS; MIXTURES; MONOCARBOXYLIC ACIDS; ORGANIC ACIDS; ORGANIC COMPOUNDS; OXYGEN COMPOUNDS; WATER

Optional Information

Notes
1 fig.; 1 tab.; 21 refs.; Updated automatically by Metadata and Full-Text Enrichment Agent