CaCl2-NaCl

A more refined study of the effect of the acidic contaminants is described in Figure 5. In order to assess the significance of small quantities of anionic film constituents, it was important to establish the smallest concentration (of such contaminants) at which the AV effect can distinguish between Ca++ and Na+ or H20. For an electrolyte concentration of 150 mequiv and various concentrations of DCP the AV increment of CaCl2 over water was related to the time which elapsed after electrolyte injection. In complete absence of exogenous acidic lipid, the kinetic curves for CaCl2, NaCl, and H20 were the same (A(AV) = zero), during... 

Lithium and Na are obtained by electrolysis of fused salts or of low melting eutectics such as CaCl2 + NaCl. Potassium, Rb, and Cs are made by treating molten MCI with Na vapor in a countercurrent fractionating tower, the metals are best purified by distillation. At the boiling point, the vapors have ca. 1% of M2. 

The most important processes for preparation of magnesium are (a) the electrolysis of fused halide mixtures (e.g., MgCl2 + CaCl2 + NaCl) from which the least electropositive metal Mg is deposited, and (b) the reduction of MgO or of calcined dolomite (MgO CaO). The latter is heated with ferrosilicon ... 

Which of the following compounds would require electrolysis to yield the free metals Ag2S, CaCl2, NaCl, Fe203, AI2O3, TiC. ... 

Hence, the oxoacidic properties of the ionic melts based on alkali metal chlorides at 600 °C strengthen in the following sequence CsCl-KCl-NaCl — KCl-LiCl — CaCl2-BaCl2-NaCl — CaCl2-NaCl. 

Castrillejo et al. studied the solubility of magnesium oxide in the molten CaCl2-NaCl equimolar mixture at 575 °C [178]. The solubility product index was found to be pPMg0 = 5.3 0.1, on the molality scale. Nevertheless, the information presented in Ref. [178] makes it possible to obtain additional data on the behaviour of MgO in the studied melt. To realize this let us consider Fig. 3.7.18. The first two points in the potentiometric curve can be established, on the basis of the treatment method in Part 6, to belong to the unsaturated... 

Y. Castrillejo, M. Martinez, G.M. Haarberg, B. Borresen, K.S. Osen and R. Tunold, Oxoacidity Reactions in Equimolar Molten CaCl2-NaCl mixture at 575 °C, Electrochim. Acta 42 (1997) 1489-1494. 

Concentration of diethylene glycol (gl-1) Electricala resistance (0.500 N NaCl) Electrical resistance (0.500 N CaCl2) NaCl/ CaCI2b if Cac Na Water content %d... 

In the study of nitrosamine adsorption, lignin suspensions were stored at 4 C for less than 15 days. Samples were exposed to 1 M CaCl2, NaCl, LiCl, or water for 30 min or to 0.1 M EDTA for 1 week. Suspensions were centrifuged and supernatants were discarded. 

Solve CaCl2, NaCl, and HCI are strong electrolytes, CH3COOH (acetic acid) is a weak electrolyte, and C12H22O11 is a nonelectrolyte. The molality of each solution in total particles is as follows ... 

Neutral NF membrane — rejection of salts depends on the molecular size, Na2S04 > CaCl2 > NaCl. 

It was noted that the binding of the extrinsic protein did not depend on the presence of added cations. Thus addition of various concentrations of CaCl2, NaCl or MnCl2 did not enhance or inhibit binding under optimal pH and detergent conditions. 

Solutions Solutions were made by dilution of stock solutions of CaCl2, NaCl, NaAc (Ac refers to acetate), and CaAc2 The calcium solutions were allowed to stand overnight and were then... 

Fig, 11. Comparison of Ca(II)-Na(I) equilibrium quotients for exchange between aqueous CaCl2 NaCl solutions, otal " and montmorillonite, measured by different isotope-dilution techniques. Comparison of ion-exchange capacities measured by isotope dilution and by displacement of ions. 

The traditional Downs cell for sodium electrolysis was operated at 50 kA in molten CaCl2-NaCl (60-40 wt%) at 580 °C. 

Since CaC -based molten salt containing sufficient amount of CaO dissolves Si02 to produce Si(IV) ions, this system can be used also for electroreflning of MG-Si. Cai et al. reported electroreflning of MG-Si conducted in molten CaCl2-NaCl-Ca0-Si02 (80 10 5 5 mol%) at 850-950 °C [27]. 

---