Interaction with calcium chloride

From tamarind seed xyloglucan, carboxymethyl derivatives with different levels of DS were prepared in isopropanol medium [440]. Swelling power, solubihty and tolerance to organic solvents of the derivatives increased with increasing DS. The interaction properties of the unmodified xyloglucan with calcium chloride and sodiiun tetraborate were found to be reversed upon car-boxymethylation. 

Adhesion reducing powder for synthetic rubbers (interaction of potassinm stearate with calcium chloride) [11]. 

The interaction process between aqueous solutions of potassium stearate with calcium chloride, in tubular turbulent devices, provides a stoichiometric reaction leading to a reduction of the reaction mixture residence time in the device, which prevents particle deposition on the technological equipment walls, and consequently increases the run between repairs reduces the specific amount of metal per structure due to the small size of the reactor reduces the process power capacity due to the removal of the mechanical mixing devices from the flow sheet and produces a finely divided suspension of the adhesion reducing powder. 

The results of the measurements carried out with an excess of cationic electrol)de and with calcium chloride are shown in Figs. 2—3. An increase of the hydronium ions concentration in the aqueous phase is coupled with an increase of the positive charge of the particles. This can be derived from the slope of the regression line. This result was expected because of the interaction of the hydronium ions with the surfaces of the soil eomponents. The value of the slope is higher for sesquioxides in comparison with clay minerals. The smface of montmorillonite is negatively charged because of the permanent charge. 

Valyashko, M. G., et al., (1973). Interactions of Calcium Chloride Brines with Sulfates in Halite... 

An abrasive is usually chemically inert, neither interacting with other dentifrice ingredients nor dissolving in the paste or the mouth. Substances used as dentifrice abrasives include amorphous hydrated silica, dicalcium phosphate dihydrate [7789-77-7] anhydrous dicalcium phosphate [7757-93-9] insoluble sodium metaphosphate [10361-03-2], calcium pyrophosphate [35405-51-7], a-alumina trihydrate, and calcium carbonate [471-34-1]. These materials are usually synthesized to specifications for purity, particle size, and other characteristics naturally occurring minerals are used infrequently. Sodium bicarbonate [144-55-8] and sodium chloride [7647-14-5] have also been employed as dentifrice abrasives. 

D. A. Khisaeva, V. A. Blazhevich, and V. G. Umetbaev. Plugging solution for isolation of absorption zones in boreholes—includes bentonite, calcium chloride, buckwheat husks and pol5mier reagent produced by interaction of polymethyl-methacrylate wastes with monoethanolamine. Patent SU 1739005-A, 1992. 

Since many ion exchange columns exhibit mixed-mode interactions with analytes, factor analysis has been found to be useful in optimization.84 A 3-year, comprehensive review of inter-laboratory errors in determinations of the anions chloride, nitrate, and sulfate and the cations sodium, potassium, magnesium, and calcium suggested that multipoint calibration is essential and nonlinear calibration desirable.102 The need for nonlinear calibration was confirmed by an extended quality assurance study of chloride, sulfate, and nitrate in rainwater.103... 

The only fluid, common to oil field operations, that has a significant interaction with TKPP solutions was concentrated calcium chloride. Solutions of calcium chloride, spent acid, are generated during the acidization of a limestone or a dolomite formation. When solutions containing 10% calcium chloride were mixed in equal proportions with 14.5 ppg TKPP solutions, massive precipitation occurred. Similar precipitation was observed with oil field brines having calcium concentrations above 400 ppm. 

Similarly, the serum electrolytes (sodium, potassium, and calcium) interact with each other a decrease in one is frequently tied, for instance, to an increase in one of the others. Furthermore, the nature of the data (in the case of some parameters), either because of the biological nature of the parameter or the way in which it is measured, is frequently either not normally distributed (particularly because of being markedly skewed) or not continuous in nature. This can be seen in some of the reference data for experimental animals in Mitruka and Rawnsley (1957) or Weil (1982) in, for example, creatinine, sodium, potassium, chloride, calcium and blood. 

The salt effect in the MeOH-EtOAc-CaC system can be explained by preferential solvation. As calcium chloride dissolves readily in methanol but only sparingly in ethyl acetate, it will be sufficient to consider the interaction between methanol molecules and calcium chloride molecules only in the MeOH-EtOAc solution. Referring again to Figure 2, the free methanol molecules which are not clustered with ethyl acetate increase linearly when the liquid-phase composition of methanol is above 0.333 in mole fraction. The solubility... 

Before starting this work, it was feared that considerable chlorine would be lost as calcium chloride by interaction of the calcium in the coal ash with the zinc chloride, but it appears that essentially no chlorine is lost in this manner. In both runs 3 and 11, the bed solids contain substantially no chlorine whereas they contained a large percentage of the calcium that was fed. Since calcium chloride is molten but nonvolatile at combustion temperature, it would be expected that any calcium chloride would be retained in the bed solids. Since none was, it is concluded that no calcium chloride was formed. It also appears that no magnesium chloride was formed. 

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