Vapor pressures of binary (water-hydrogen chloride, -magnesium chloride, and -calcium chloride) and ternary (water-magnesium chloride-calcium chloride) aqueous solutions

1985 ◽  
Vol 30 (2) ◽  
pp. 224-228 ◽  
Author(s):  
Takeshi Sako ◽  
Toshikatsu Hakuta ◽  
Hiroshi Yoshitome
Keyword(s):  
Aqueous Solutions ◽  
Hydrogen Chloride ◽  
Calcium Chloride ◽  
Magnesium Chloride ◽  
Vapor Pressures ◽  
Water Hydrogen

Vapor pressures of aqueous solutions of (silver, thallium, sodium) nitrate at 98.5.degree.C

1980 ◽  
Vol 25 (4) ◽  
pp. 331-332 ◽  
Author(s):  
Marie Christine Abraham ◽  
Maurice Abraham ◽  
James Sangster
Keyword(s):  
Aqueous Solutions ◽  
Sodium Nitrate ◽  
Vapor Pressures

scholarly journals Diffusion coefficients and electrical conductivities for calcium chloride aqueous solutions at 298.15K and 310.15K

2008 ◽  
Vol 54 (2) ◽  
pp. 192-196 ◽  
Author(s):  
Ana C.F. Ribeiro ◽  
Marisa C.F. Barros ◽  
Ana S.N. Teles ◽  
Artur J.M. Valente ◽  
Victor M.M. Lobo ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Calcium Chloride ◽  
Diffusion Coefficients ◽  
Electrical Conductivities

scholarly journals Obtaining artificial carnallites from magnesium chloride brines

2020 ◽  
Vol 56 (2) ◽  
pp. 229-234
Author(s):  
V. V. Shevchuk ◽  
T. N. Potkina ◽  
A. I. Vaitenka ◽  
O. V. Smetanina
Keyword(s):  
Calcium Chloride ◽  
Magnesium Chloride ◽  
Calcium Sulfate ◽  
Raw Materials ◽  
Potassium Sulfate ◽  
Sulfate Ions ◽  
Chloride Solutions ◽  
Excess Concentration ◽  
Almost All ◽  
Complete Precipitation

The excess of magnesium chloride brines is formed during the polymineral ores processing in order to obtain potassium sulfate. One way to regenerate such brines is to produce artificial carnallite. It is necessary to purify these brines from sulfates for their further use as raw materials for the artificial carnallite production. In this work, the process of desulfurization of magnesium chloride brines with a solution of calcium chloride is studied. The temperature and the processing time, the magnesium chloride solutions concentration and the consumption of desulfurizing agent (calcium chloride) influence on the degree of magnesium chloride solutions purification from sulfate ions was determined. It has been established that almost all sulfate ions interact with calcium ion in 15 minutes and the desulfurization degree reaches 98,08 %. The increase in duration of the suspension mixing is necessary in order to establish equilibrium in the system and relieve the supersaturation in the solution. It has been shown that with increasing solutions saturation with MgCl2, the degree of the magnesium chloride brines purification from SO4 2– ion increases. Complete precipitation of calcium sulfate requires a certain excess concentration of calcium chloride.

scholarly journals Germination of chia seeds submitted to saline stress

2020 ◽  
Vol 80 (2) ◽  
pp. 285-289
Author(s):  
R. Stefanello ◽  
B. B. Viana ◽  
P. C. H. Goergen ◽  
L. A. S. Neves ◽  
U. R. Nunes
Keyword(s):  
Sodium Chloride ◽  
Aqueous Solutions ◽  
Potassium Chloride ◽  
Crop Yield ◽  
Magnesium Chloride ◽  
Saline Stress ◽  
Germination Test ◽  
Negative Effect ◽  
Osmotic Potentials ◽  
Soil And Water

Abstract Salinity, of both soil and water, is one of the main causes of crop yield decline. Within this context, the objective of this study was to evaluate the influence of different salts on the germination of chia seeds. The experiment was conducted in a BOD chamber at a constant temperature of 20 °C and in the presence of light. The seeds were placed on paper soaked with aqueous solutions of calcium chloride (CaCl2), sodium chloride (NaCl), potassium chloride (KCl), and magnesium chloride (MgCl2), at the osmotic potentials zero, -0.10, -0.20, -0.30, and -0.40 MPa. The effect of the salinity was evaluated using a germination test, with counts on days 7 and 14 after sowing. Based on the results, chia seeds tolerate concentrations of NaCl to -0.4 MPa and KCl to -0.20 MPa. The salts CaCl2 and MgCl2 had a negative effect on the germination and vigor of the chia seeds for the osmotic potentials -0.30 MPa and -0.20 MPa, respectively.

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