noun

bicarbonate

bye-KAR-buh-nut/ˌbaɪˈkɑːrbənət/

The hydrogen carbonate ion or a salt containing it.

The bowl contains sodium bicarbonate, represented by the formula on the card.

A bowl of baking soda and spoon beside an ivory card showing NaHCO₃, the formula for sodium bicarbonate.
Etymology

Bi- reflects an older chemical description: two equivalents of carbonic acid to one of a base. The name survives for salts containing the hydrogen carbonate ion.

In context

Nuttall's Biology14:32
the pancreas also produces bicarbonate that functions to neutralize the acidity of chyme coming from the stomach
Digestive System Part 1

More examples

  • Baking soda is a familiar bicarbonate.
  • The water sample contains dissolved bicarbonate ions.
  • The label lists sodium bicarbonate among the ingredients.

Forms

bicarbonate · bicarbonates

Similar words

carbonate
Contains carbonate ions rather than hydrogen carbonate ions.
baking soda
Specifically sodium bicarbonate rather than the broader chemical class.