Combined derivatographic and thermo-gas-titrimetric examination of the thermal decomposition of copper tetra-ammine sulphate monohydrate.
The thermal decomposition of copper tetra-ammine sulphate monohydrate has been investigated by a combined derivatographic and thermo-gas-titrimetric method. It has been found that decomposition starts with splitting off of the water of crystallization and only after part of this water has departed does stepwise release of ammonia begin. First two moles, then one and finally again one mole of ammania (per mole of compound) are released. It has been established that a small amount of sulphur trioxide splits off during the last decomposition step, and that about 20 % of the last ammonia to be released is thermally decomposed.
Paulik
J
J
Institute for General and Analytical Chemistry, Technical University, Budapest, Hungary.
Paulik
F
F