Density, viscosity, and electrolytic conductivity of concentrated aqueous electrolyte solutions at several temperatures. Alkaline-earth chlorides, lanthanum chloride, sodium chloride, sodium nitrate, sodium bromide, potassium nitrate, potassium bromide, and cadmium nitrate

1984 ◽  
Vol 29 (1) ◽  
pp. 45-52 ◽  
Author(s):  
Toshiaki Isono
Keyword(s):  
Sodium Chloride ◽  
Sodium Nitrate ◽  
Alkaline Earth ◽  
Aqueous Electrolyte ◽  
Electrolyte Solutions ◽  
Potassium Nitrate ◽  
Potassium Bromide ◽  
Lanthanum Chloride ◽  
Cadmium Nitrate ◽  
Alkaline Earth Chlorides

A simplified form of Stokes–Robinson equation

1976 ◽  
Vol 54 (1) ◽  
pp. 9-11 ◽  
Author(s):  
Chai-Fu Pan
Keyword(s):  
Sodium Chloride ◽  
Hydrogen Chloride ◽  
Activity Coefficients ◽  
Aqueous Electrolyte ◽  
Electrolyte Solutions ◽  
Solvent Interactions ◽  
Interionic Interactions ◽  
Two Parameter ◽  
Robinson Equation ◽  
Existing Data

In non-associated dilute aqueous electrolyte solutions, the deviation from ideality is principally attributed to the interionic interactions and hydration of ions. Stokes and Robinson combined Bjerrum's thermodynamic treatment of ion–solvent interactions with Debye–Hückel treatment of interionic interactions to obtain a two-parameter equation. In very dilute regions, the Stokes and Robinson's equation reduces to a much simpler form, i.e.[Formula: see text]Activity coefficients of an electrolyte at lower concentrations, say up to 0.1 m, can be calculated from the equation provided suitable values of &([a-z]+); and h are available. Solutions of hydrogen chloride and sodium chloride were chosen as examples. The results agree with the existing data very satisfactorily.

Experiments measuring effects of ammonium and nitrate fertilizers, with and without sodium and potassium, on spring barley

1967 ◽  
Vol 69 (2) ◽  
pp. 197-207
Author(s):  
F. V. Widdowson ◽  
A. Penny ◽  
R. J. B. Williams
Keyword(s):  
Sodium Chloride ◽  
Sugar Beet ◽  
Ammonium Sulphate ◽  
Sodium Nitrate ◽  
Spring Barley ◽  
Calcium Nitrate ◽  
Potassium Nitrate ◽  
Grain Yields ◽  
Light Soil ◽  
Sodium And Potassium

1. Thirteen experiments were made with spring barley from 1963 to 1965 on soils overlying chalk. They compared yields at ear emergence and of ripe grain from ammonium sulphate and from calcium nitrate, from sodium nitrate or sodium chloride or both, and from potassium nitrate or potassium chloride. Two rates of seedbed N were tested, though they were different each year, and in 1964 and 1965 N top-dressings were also applied. The amounts of N, K, Na and Mg in the green barley, and of N in the grain, were measured.greatly increased grain yields in all but one experiment, where the barley followed sugar beet. Calcium nitrate gave larger grain yields than ammonium sulphate in three-quarters of the comparisons, but gave much smaller yields than ammonium sulphate on one light soil in 1964 when much rain fell after the fertilizers had been applied. Grain yields from calcium, potassium and sodium nitrates were nearly the same.3. Na slightly increased grain yields in three and K in two experiments, but combine-drilled P or PK fertilizers increased them in every experiment.

scholarly journals Free Energy Measurements of Sodium Chloride in Fused Mixtures with the Alkaline Earth Chlorides.

1966 ◽  
Vol 20 ◽  
pp. 2320-2321 ◽  
Author(s):  
Terje Østvold ◽  
Veli Aalto ◽  
Lars Rymo ◽  
J. H. Bowie ◽  
D. H. Williams ◽  
...  
Keyword(s):  
Free Energy ◽  
Sodium Chloride ◽  
Alkaline Earth ◽  
Alkaline Earth Chlorides

Infrared Determination of Inorganic Nitrates by the Pellet Technique; Infrared Determination of Two Inorganic Nitrates in the Presence of Each other

1970 ◽  
Vol 24 (2) ◽  
pp. 283-287 ◽  
Author(s):  
David E. Chasan ◽  
George Norwitz
Keyword(s):  
Quantitative Determination ◽  
Sodium Nitrate ◽  
Potassium Nitrate ◽  
Potassium Bromide ◽  
Barium Nitrate ◽  
Strontium Nitrate ◽  
Sodium Potassium

The quantitative determination of inorganic nitrates by the pellet technique was investigated. Methods are described for the determination of sodium, potassium, barium, and strontium nitrates. In these methods the nitrate is weighed into a small tared mortar, 300 mg of potassium bromide is added, the pellet is formed, and absorbances are determined at the appropriate peak. The peaks recommended for sodium, potassium, barium, and strontium nitrates are 836, 825, 730, and 737 cm−1, respectively. Methods are also proposed for the determination of two nitrates in the presence of each other. For the analysis of a mixture of sodium nitrate and potassium nitrate, measurements are made for sodium nitrate at 836 cm−1 and for potassium nitrate at 825 cm−1. For the analysis of a mixture of barium nitrate and strontium nitrate, measurements are made for barium nitrate at 730 cm−1 and for strontium nitrate at 737 cm−1. The methods for the determination of two nitrates can be used down to a ratio of 1 to 20. For lesser ratios the errors are rather large. Sulfates do not interfere with any of the procedures.

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