Analysis of the hydrolysis product of yttrium sulfate, obtained by sol-gel method with various hydrolytic agent

Influence of hydrolytic agent on composition and properties of hydrolysis products of yttrium sulfate was investigated. It established that the hydrolysis of yttrium sulfate leads to formation of samples which contain considerable impurity of sulfate group. The hydrolysis products are completely amorphous. The use of aqueous ammonia as the hydrolytic agent enables to obtain samples containing minor amounts of water of crystallization and pore water.