Posted by : Me Sunday, 11 October 2015

What is the difference between Baking Soda and Cream of Tartar:

Bicarbonate of soda, or baking soda, has the chemical name sodium bicarbonate, NaHCO3. When dissolved in water, creates a slightly basic solution.

Cream of tartar has the chemical name potassium bitartrate, KC4H5O6. When dissolved in water, creates a slightly acidic solution.

Baking powder (double acting) is a mixture of baking soda and cream of tartar.

If you were to make solutions of each of these substances of the same mass concentration (say 50g/L for each), and test them with pH paper:

Baking soda will be most basic.
Cream of tartar will be most acidic.
Baking powder will be somewhere in between.

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