Other alkaline halides

NiO solubility in molten KF-LiF at 550 C determined by potentiometric method is 1.3x10 This value considerably exceeds values obtained for the above chloride melts. The increase of NiO solubility occurred due to formation of fluoride complexes which are more stable than chloride ones. 

4 ON THE POSSIBILITY TO PREDICT OXIDE SOLUBILITIES ON THE BASE OF THE EXISTING DATA 

Studies show that the estimation of oxide solubilities in non-studied halide melts are possible, at least, for 1 1 oxides, i.e., MeO. 

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The reactivity of sulfathiazoles has been reviewed (65). Methylation in alkaline solution with dimethyl sulfate gives only the ring methylated derivative (85). Mixtures of products are obtained with diazomethane as alkylating agent (see p. 37). Other alkyl halides in aqueous alkali lead also to ring-alkylated products (85. 251, 650. 669-671). 

In all of the systems so far investigated the aquation rate has been found to be pH independent in alkaline solution, at least up to 0.1MOH ", the largest concentration investigated. It may be noted that this behavior is entirely analogous to that of trityl chloride and other organic halides which undergo solvolysis by well established Svl mechsnisms. (S)... 

Although the motion of protons does not lead to electrical conduction in the case of benzoic acid, electronic and even ionic conductivity can be found in other molecular crystals. A well-studied example of ionic conduction is a film of polyethylene oxide (PEO) which forms complex structures if one adds alkaline halides (AX). Its ionic conductivity compares with that of normal inorganic ionic conductors (log [cr (Q cm)] -2.5). Other polymers with EO-units show a similar behavior when they are doped with salts. Lithium batteries have been built with this type of... 

The final part of the synthesis and properties section of this review addresses other alkaline-earth complexes containing mono-, bi-, or polydentate ligands and anionic ligands such as carboxylates, halides, thiocyanates, or nitrates, where the low degree of oligomerization may result in sufficient volatility for CVD. We have not attempted to be comprehensive in this section, but rather to present examples of the different types of compounds formed by these anionic ligands. More comprehensive coverage of this area can be found elsewhere.74170 223 224... 

Dq (BaBr)/Aj H (BaBr2) 0.48 which Is quite consistent with values of this ratio for other alkaline earth halide systems (4). A-H (298.15 K) corresponds to -26.4 kcal mol". ... 

The value of r Is obtained from that for gaseous BaBrgC ) with r (BaBr)/r (BaBrg) = 0.96. This value for the ratio Is calculated from bond lengths (4) for several other alkaline earth halide systems. Two other estimates (5, 6) of r agree with the adopted value to within 0.05 A. The rotational constant Is calculated from the estimated value for r. The value of Is obtained from a Morse potential function. 

Beryllium shows some covalent characteristics in some of its compounds, unlike the other alkaline earth halides. Give a possible explanation for this phenomenon. 

These pol)uners are not resistant to highly alkaline solutions of sodium hydroxide, concentrated sulfuric acid, alkaline solutions with pFI greater than 10, aliphatic, primary and aromatic amines, amides, and other alkaline organics, phenols, and acid halides. Table 3.11 provides the compatibility of halogenated polyesters with selected corrodents. Reference [1] provides a more comprehensive listing. 

Friedman s model fits the thermodynamic excess functions (osmotic coefficient, excess volume, and excess energy) of aqueous solutions of alkali and earth alkaline halides up to l-M ionic strength and of tetraalkylammo-nium halides up to 0.4 M. The variation of the A/y parameters with the ionic parameters is chemically meaningful and permits the estimation of thermodynamic properties of unknown systems by the combination of the parameters known from appropriate other systems. 

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