monobasic

Of or relating to salts or acids forming salts with one ion of a univalent metal. NaH₂PO₄ is an example of a monobasic salt.

Monoprotic.

Pertaining or relating to monobasis.

Having one base: applied in chemistry to an acid which enters into combination with a univalent basic radical to form a neutral salt, or a salt containing one equivalent of a base.

Capable of being neutralized by a univalent base or basic radical; having but one acid hydrogen atom to be replaced; — said of acids.

containing one replaceable hydrogen atom

having one atom of a univalent metal