Baking powder
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Baking powder is a dry chemical leavening agent, a mixture of a carbonate or bicarbonate and a weak acid. The base and acid are prevented from reacting prematurely by the inclusion of a desiccant such
U.S. consumer-packaged baking powder. Rumford baking powder contains monocalcium phosphate, sodium bicarbonate, and cornstarch.
Baking powder laboratory in Chicago, 1918
Baking powder filling machine in Chicago, 1918
Baking powder awaiting shipment to US Forces in Europe, World War I
Potassium bitartrate
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Potassium bitartrate, also known as potassium hydrogen tartrate, with formula KC4H5O6, is the potassium acid salt of tartaric acid —specifically, l--tartaric acid. Especially in cooking, it is also kn
Baking powder
…use sodium acid pyrophosphate as one of the two acidic components instead of sodium aluminium sulfate. Another typical acid in such formulations is cream of tartar (KC4H5O6), a derivative of tartaric acid. The use of two acidic components is the basis of the term "double acting". The acid in a baking powder can…
Potassium bitartrate in an empty white wine bottle
Folger's Golden Gate Cream Tartar, first half of 20th century
Potassium bitartrate powder