From Kurt Hoffacker
Dissolving baking soda (sodium bicarbonate) in plain water will not yield
CO2 as Feedback claims. One also needs to add a source of acid, such as
vinegar or lemon juice, to get the bubbles.
Obviously some more interesting chemistry is going on here. Does the paste
contain a “protected” acid source that is only released in the mouth? Perhaps
bicarbonate really isn’t the “special ingredient” mentioned in the advert, but a
different reaction is being employed.
Connecticut
