CXLVI.—The quaternary system potassium sulphate-magnesium sulphate–ammonium sulphate–water

1922 ◽  
Vol 121 (0) ◽  
pp. 1223-1237 ◽  
Author(s):  
Arnold Weston
Keyword(s):  
Ammonium Sulphate ◽  
Magnesium Sulphate ◽  
Quaternary System ◽  
Potassium Sulphate ◽  
Sulphate Water

The System: Potassium Sulphate, Magnesium Sulphate, Water

1930 ◽  
Vol 34 (5) ◽  
pp. 1058-1063 ◽  
Author(s):  
B. A. Starrs ◽  
L. Clarke
Keyword(s):  
Magnesium Sulphate ◽  
Potassium Sulphate ◽  
Sulphate Water

The effects of nitrogen, phosphorus, potassium, and lime on the growth and canning yield of clingstone peaches

1968 ◽  
Vol 8 (35) ◽  
pp. 771 ◽  
Author(s):  
JC Keatley ◽  
GJ Kidman ◽  
A Malimonenko
Keyword(s):  
Experimental Design ◽  
Ammonium Sulphate ◽  
Tree Growth ◽  
Fruit Size ◽  
Manganese Toxicity ◽  
Potassium Sulphate ◽  
Main Effect ◽  
Main Effects ◽  
Fertilizer Combination ◽  
Nitrogen Phosphorus

The responses in canning yield and tree growth obtained from clingstone peaches (CV. Golden Queen) to fertilizers applied in factorial combinations were measured for 19 years at Tatura, Victoria. During the first eight years, the treatments involved ammonium sulphate, superphosphate, and potassium sulphate. Then a fourth factor, lime, was added, and included in the study for four years. For the final period of seven years, the experimental design was modified, in that all trees were limed, potassium sulphate was deleted, and applications of ammonium sulphate were re-arranged. The fertilizer combination that gave the greatest tree response was an application of 3 lb ammonium sulphate plus 4 lb superphosphate to each tree (at bud swell), and then in mid-summer an extra 3 lb ammonium sulphate. The main effects of nitrogen, phosphorus, and lime were to increase both yield and growth, while the main effect of potassium was to depress them (usually it was not large enough to be proved significant). The main effect of splitting the total application of ammonium sulphate was to increase yield through larger fruit size, but there was no effect on growth. The responses were independent and additive. Ammonium sulphate strongly acidified the soil, and this caused manganese toxicity, which was alleviated by liming.

CLXXII.—The system potassium sulphate–glucinum sulphate–water at 25°

1921 ◽  
Vol 119 (0) ◽  
pp. 1463-1470 ◽  
Author(s):  
Hubert Thomas Stanley Britton ◽  
Arthur John Allmand
Keyword(s):  
Potassium Sulphate ◽  
Sulphate Water

THE SYSTEM LITHIUM SULPHATE – AMMONIUM SULPHATE – WATER

1954 ◽  
Vol 32 (7) ◽  
pp. 696-707 ◽  
Author(s):  
A. N. Campbell ◽  
W. J. G. McCulloch ◽  
E. M. Kartzmark
Keyword(s):  
Transition Temperature ◽  
Ammonium Sulphate ◽  
Room Temperature ◽  
Double Salt ◽  
Enthalpies Of Solution ◽  
Lithium Sulphate ◽  
Solubility Isotherms ◽  
Ternary Eutectics ◽  
Sulphate Water

The binary eutectics Li2SO4•H2O–ice and (NH4)2SO4–ice as well as the ternary eutectics Li2SO4•H2O–Li2SO4•(NH4)2SO4–ice and (NH4)2SO4–Li2SO4•(NH4)2SO4–ice have been determined as to temperature and composition. The complete solubility isotherms at 0.1°, 71.8°, and 95.2 °C. have been investigated. The enthalpies of solution of lithium sulphate monohydrate, of ammonium sulphate, and of double salt have been determined (in water at room temperature), and from these data, as well as from the solubility isotherms, it has been shown that the temperature of the transition of the double salt, Li2SO4•(NH4)2SO4, to its component single salts (in the presence of water) is approached by lowering the temperature, but this transition temperature is still far from reached when the system freezes completely.

MEASUREMENT OF DIELECTRIC CONSTANT OF ELECTROLYTES

1935 ◽  
Vol 12 (3) ◽  
pp. 377-397 ◽  
Author(s):  
R. W. McKay
Keyword(s):  
Dielectric Constant ◽  
Sodium Chloride ◽  
Hydrogen Chloride ◽  
Magnesium Sulphate ◽  
Copper Sulphate ◽  
Potassium Ferrocyanide ◽  
Potassium Sulphate ◽  
Sources Of Error ◽  
Voltage Resonance

An apparatus for measuring the dielectric constant of conducting solutions by voltage resonance is described. The theory of the circuit and the sources of error are discussed. The design of the apparatus is such as to eliminate errors other than those due to inductance of cell leads, for which a correction is made.Measurements have been made on solutions of sodium chloride, hydrogen chloride, potassium sulphate, magnesium sulphate, copper sulphate and potassium ferrocyanide, at 23.0 °C. and 2 × 106 cycles frequency. An increase in dielectric constant with concentration greater than that predicted by Debye and Falkenhagen has been found in all cases. The results are compared with those of other workers. Graphs are given of the results obtained.

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