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Pertaining to, or having the nature of, a basyle; electroÐpositive; basic; Ð opposed to chlorous.

Chlorous acid is not known in the pure condition; but its sodium salt is prepared by the action of sodium peroxide on a solution of chlorine peroxide: 2ClO2 + Na2O2 = 2NaClO2 + O2.

Those elements which are disengaged at the negative pole are termed electro-positive, or positive, or basylous elements, whilst those disengaged at the positive pole are termed electro-negative, or negative, or chlorous elements.

This is illustrated in the four oxyacids of chlorine, HClO, HClO2, HClO3, HClO4, which have the names hypochlorous, chlorous, chloric and perchloric acids.

These elements which are disengaged at the negative pole are termed electro-positive or positive or basylous elements, while those disengaged at the positive pole are termed electro-negative or negative or chlorous elements.