Ammonates—Analogues of Hydrates

Finely powder 50 g. of copper sulfate and dissolve it by continued shaking in a mixture of 75 cc. of concentrated ammonia water and 50 cc. of water. While vigorously stirring the solution, drop into it very slowly 

Formerly, these types of salts were distinguished by names which indicated color, such as purpureo, roseo, luteo, xantho. The present mode consists in designating the coordinated groups by a name ending in the suffix -ato for acid groups and -ino for basic ones, the remainder of the name being in accord with the usual custom. In accordance with this usage, the names of the three salts referred to above are hexammino-cobalti chloride chloro-pentammino-cobalti chloride dichloro-tetrammino-cobalti chloride. 

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