copper sulphate

noun

1. a copper salt found naturally as chalcanthite and made by the action of sulphuric acid on copper oxide. It usually exists as blue crystals of the pentahydrate that form a white anhydrous powder when heated: used as a mordant, in electroplating, and in plant sprays. Formula: CuSO 4

Example Sentences

A few drops of an ammoniacal solution of copper sulphate was added to the water extract.

From Project Gutenberg

The work must be left in the copper sulphate solution till it has received a uniform coating of copper.

From Project Gutenberg

Jensen again could obtain no stimulation with copper sulphate.

From Project Gutenberg

How much crystallised copper sulphate will contain this amount of metal?

From Project Gutenberg

It is charged with a saturated solution of copper sulphate, and crystals of this salt must be added, and always kept in excess.

From Project Gutenberg