Soola koostisesse kuulub vesinik, mis on asendatav metalli katiooniga. Vesiniku sümbol märgitakse valemisse ja loetakse nimetuses vahetult enne aniooni nimetust.
Member States may specify that neutral potassium tartrate and potassium bicarbonate shall be used only under the supervision of an oenologist or technician officially approved by the authorities of the Member State in which they are used.
