Gallium sulphate

Indium sulphate is slightly more stable than the aluminium salt and decomposition curves (1073—1273 K) fitted [777] the Avrami—Erofe ev equation [eqn. (6)] with values of n increasing with temperature from 1.0 to 1.6. Gallium sulphate is less stable and decomposes between 833 and 973 K[770]. 

The following are suitable anions for urea precipitations of some metals sulphate for gallium, tin, and titanium formate for iron, thorium, and bismuth succinate for aluminium and zirconium. 

The existence of dimeric and polymeric species in aqueous solutions of indium(m) and thallium(iii) has an effect on kinetics of systems which include these reactants. A T-jump study of indium(iii) perchlorate solution has yielded a value for the rate constant for dimerisation of [InOH] +. Due to ion-pairing complications, it has not proved possible to determine unequivocally, by comparison of rate constants of this and of the indium(m)-sulphate system, whether the rate-determining step in dimerisation of [InOH] + is loss of a solvating water molecule from the indium. The situation is entirely similar for gallium(iii) in perchlorate solution. ... 

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