Interdiffusion coefficients, densities, and refractive indices of NH[sub 4]Cl + H[sub 2]O and (NH[sub 4])[sub 2]SO[sub 4] + H[sub 2]O at 25 C

Journal Article · Sat Jan 01 04:00:00 EST 1994 · Journal of Chemical and Engineering Data; (United States)

DOI:https://doi.org/10.1021/je00013a055· OSTI ID:5437124

Albright, J G; Mitchell, J P ^[1]; Miller, D G ^[2]

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1. Texas Christian Univ., Fort Worth, TX (United States). Dept of Chemistry
2. Texas Christian Univ., Fort Worth, TX (United States). Dept. of Chemistry Lawrence Livermore National Lab., Livermore, CA (United States). Chemistry and Materials Science

Interdiffusion coefficients of the system NH[sub 4]Cl + H[sub 2]O and (NH[sub 4])[sub 2]SO[sub 4] + H[sub 2]O at 25 C were measured by free-diffusion optical-interferometric methods over wide ranges of concentration. Density data were also obtained for these systems. The concentration dependence of the refractive index, n, for each system was determined from refractive index increments, [Delta]n, the mean molar concentrations, [bar c], and the concentration differences, [Delta]c, of the set of experiments performed on each system. This dependence was compared to the concentration dependence of n predicted from equations for the molar refraction of mixtures. The latter equations use the measured concentration dependence of the solution density and either apparent molar refractions or refractive indices and densities of the pure components.

• OSTI ID: 5437124
• Journal Information: Journal of Chemical and Engineering Data; (United States), Journal Name: Journal of Chemical and Engineering Data; (United States) Vol. 39:1; ISSN JCEAAX; ISSN 0021-9568
• Country of Publication: United States
• Language: English

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
AMMONIUM CHLORIDES
AMMONIUM COMPOUNDS
AMMONIUM HALIDES
AMMONIUM SULFATES
AQUEOUS SOLUTIONS
CHLORIDES
CHLORINE COMPOUNDS
CONCENTRATION RATIO
DATA
DISPERSIONS
EXPERIMENTAL DATA
HALIDES
HALOGEN COMPOUNDS
INFORMATION
MEASURING METHODS
MIXTURES
NUMERICAL DATA
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SOLUTIONS
SULFATES
SULFUR COMPOUNDS
THERMODYNAMIC PROPERTIES