scholarly journals CCCXIV.—The system ammonium sulphate–glucinum sulphate–water at 25°

1922 ◽  
Vol 121 (0) ◽  
pp. 2612-2616 ◽  
Author(s):  
Hubert Thomas Stanley Britton
Keyword(s):  
Ammonium 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.

INFLUENCE OF NON-IONIC SURFACTANTS, AMMONIUM SULPHATE, WATER QUALITY AND SPRAY VOLUME ON THE PHYTOTOXICITY OF GLYPHOSATE

1981 ◽  
Vol 61 (2) ◽  
pp. 391-400 ◽  
Author(s):  
P. A. O’SULLIVAN ◽  
J. T. O’DONOVAN ◽  
W. M. HAMMAN
Keyword(s):  
Ammonium Sulphate ◽  
Tap Water ◽  
Field Studies ◽  
Tween 20 ◽  
Ionic Surfactants ◽  
Distilled Water ◽  
Wild Oats ◽  
Spray Volume ◽  
Triton X ◽  
Sulphate Water

In field studies, the surfactants Tween 20, X-77 and Triton X-100 enhanced the effectiveness of low glyphosate rates on rape, wheat, oats and barley. In greenhouse studies, Triton X-A Special and Tween 20 enhanced glyphosate phytotoxicity in wild oats and barley. Concentrations of at least 0.5% vol/vol Tween 20 and 0.25% vol/vol Triton X-A Special were required for enhancement of glyphosate phytotoxicity in barley. The surfactants Renex 36, Cittowet Plus and Dupont WK reduced glyphosate phytotoxicity in field and greenhouse studies. Atplus 411F, Surfel and Triton X-114 also reduced glyphosate effectiveness in several field treatments. A number of other surfactants had no significant effects on glyphosate phytotoxicity. Glyphosate was less phytotoxic to barley when applied in tap water (45 ppm Ca++ equivalent) compared to distilled water. With increasing spray volumes, the effectiveness of low rates of glyphosate was reduced and this reduction was more evident in tap than in distilled water. Ammonium sulphate in combination with Agral 90 enhanced glyphosate phytotoxicity in barley.

Partial Characterization of a Fibrinolytic Inhibitor Produced by Cultured Endothelial Cells Derived from Human Umbilical Vein

1982 ◽  
Vol 47 (02) ◽  
pp. 128-131 ◽  
Author(s):  
F Esnard ◽  
E Dupuy ◽  
A M Dosne ◽  
E Bodevin
Keyword(s):  
Endothelial Cells ◽  
Primary Culture ◽  
Ammonium Sulphate ◽  
Concanavalin A ◽  
Umbilical Vein ◽  
Human Umbilical Vein ◽  
Preliminary Characterization ◽  
Umbilical Vein Endothelial Cells ◽  
Ammonium Sulphate Saturation

SummaryA preliminary characterization of a fibrinolytic inhibitor released by human umbilical vein endothelial cells in primary culture is reported. This molecule of Mr comprised between 2 × 105 and 106 and of μ2 mobility precipitates at 43% ammonium sulphate saturation and is totally adsorbed on Concanavalin A Sepharose 4 B. A possible relationship with a macroglobulins is discussed.

Thermochemical purification of talc with ammonium sulphate as chemical additive

2021 ◽  
Vol 164 ◽  
pp. 106815
Author(s):  
Barbara A. Castleman ◽  
Elizabet M. van der Merwe ◽  
Frédéric J. Doucet
Keyword(s):  
Ammonium Sulphate ◽  
Chemical Additive
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