Add time:08/03/2019         Source:sciencedirect.com

The thermal decomposition of lanthanum, cerium (III), praseodymium, neodymium, samarium, gadolinium, dysprosium, holmium, erbium, ytterbium, and yttrium sulphate hydrates was studied on the thermobalance. The formation of intermediate hydrates was more pronounced with the lighter rare earth elements than with the heavier ones. The first weight loss temperatures for the hydrated salts ranged from 40 to 110°C, while the minimum temperatures for the anhydrous metal sulphate levels ranged from 155 to 295°C.

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