Freezing-point data on a aqueous solutions of sucrose and sodium chloride and the Horvart test: a reappraisal

Freezing point, viscosity, and boiling point data are presented for aqueous solutions of levo-2,3-butanediol containing methanol, ethanol, ethylene glycol, and tetrahydrofurfuryl alcohol as third components. All four ternary systems show freezing points of −50 °C. and lower over a considerable range of compositions. Among the compounds tested as third components, methanol was most effective as a thinning agent and accessory freezing point depressant. The data indicate that 20% methanol–40% butanediol–40% water is suitable for use at temperatures as low as −50 °C.

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Thermodynamics of micellar systems: activity and entropy of sodium decanoate and n-alkylamine hydrobromides in water

Canadian Journal of Chemistry ◽

10.1139/v81-278 ◽

1981 ◽

Vol 59 (13) ◽

pp. 1865-1871 ◽

Cited By ~ 20

Author(s):

Rosario De Lisi ◽

Gérald Perron ◽

Jean Paquette ◽

Jacques E. Desnoyers

Keyword(s):

Heat Capacity ◽

Aqueous Solutions ◽

Homologous Series ◽

Freezing Point ◽

Activity Data ◽

Micellar Systems ◽

Point Data ◽

Sodium Decanoate ◽

Capacity Data ◽

Mean Activity Coefficients

The freezing-point depressions of aqueous solutions of the homologous series RNH3Br, where R varies from ethyl to n-octyl, and of sodium decanoate were determined and used to calculate osmotic and mean activity coefficients. In the case of the surfactants octylamine hydrobromide and sodium decanoate, the pre- and post-micellar regions were covered. Activity data at higher temperatures were calculated using previously published thermochemical data. Some difficulties arise in the critical micellar region of sodium decanoate at high temperatures as a result of the large concentration and temperature dependence of the heat capacity data. The activities from freezing point data are compared with those obtained from specific electrodes.

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The Activity Coefficient of Potassium Chloride in Aqueous Solutions at 0° from Electromotive Force and Freezing Point Data

Journal of the American Chemical Society ◽

10.1021/ja01335a038 ◽

1933 ◽

Vol 55 (8) ◽

pp. 3279-3282 ◽

Cited By ~ 7

Author(s):

Rodney P. Smith

Keyword(s):

Activity Coefficient ◽

Aqueous Solutions ◽

Potassium Chloride ◽

Electromotive Force ◽

Freezing Point ◽

Point Data

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Density-composition tables for aqueous solutions of sodium chloride and of calcium chloride

10.3403/30306196u ◽

2015 ◽

Keyword(s):

Sodium Chloride ◽

Aqueous Solutions ◽

Calcium Chloride

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THE SOLUBLE PROTEINS OF THE MUSCLE TISSUE OF THE HADDOCK

Contributions to Canadian Biology and Fisheries ◽

10.1139/f31-001 ◽

1931 ◽

Vol 6 (1) ◽

pp. 1-11 ◽

Cited By ~ 1

Author(s):

J. F. LOGAN

Keyword(s):

Sodium Chloride ◽

Aqueous Solutions ◽

Muscle Tissue ◽

Soluble Protein ◽

Potassium Phosphate ◽

Extraction Methods ◽

Water Soluble ◽

Tabular Form ◽

Water Soluble Protein ◽

Isoelectric Points

As a contribution to the chemistry of muscle tissue, the solubility of the protein of haddock muscle in aqueous solutions of sodium chloride and neutral potassium phosphate, respectively, was determined. The results are expressed in tabular form and graphically in the form of solubility curves. A water-soluble protein and also a salt-soluble protein were isolated from dialyzed haddock muscle by extraction methods. These proteins were obtained in a comparatively pure condition by precipitation from solution in the region of their isoelectric points.

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