Cuprous [adjective]

A solution of cuprous chloride which has absorbed CO gives it up on being treated with potassic bichromate and acid.

"Frankoline," a mixture of cuprous and ferric chlorides dissolved in strong hydrochloric acid absorbed in infusorial earth.

Yellow to brick-red cuprous oxide forms as a heavy precipitate if glucose is present.

It is rapidly absorbed by an ammoniacal or acid (hydrochloric acid) solution of cuprous chloride.

The chemical reaction taking place is the reduction of copper sulphate to cuprous oxide.

By treating cuprous oxide with different acids a number of cuprous salts can be made.

Silver forms two oxides but only one series of salts, namely, the one which corresponds to the mercurous and cuprous series.

Copper, like iron, forms two series of compounds: in the cuprous compounds it is univalent; in the cupric it is divalent.

Since they are so much more familiar than the cuprous salts, they are frequently called merely copper salts.

The most important cuprous compound is the oxide (Cu2O), which occurs in nature as ruby copper or cuprite.