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Not to be confused with Sodium bicarbonate. Potassium bicarbonate (also known as potassium hydrogen carbonate or potassium acid carbonate) is a colorless, odorless, slightly basic, salty substance.According to the U.S. Food and Drug Administration (FDA), potassium bicarbonate is  generally recognized as safe .There is no evidence of human carcinogenicity, no adverse effects of overexposure, and an undetermined LD50. It is among the food additives encoded by European Union, identified by the initials E 501.ccording to the U.S. Food and Drug Administration (FDA), potassium bicarbonate is  generally recognized as safe . There is no evidence of human carcinogenicity, no adverse effects of overexposure, and an undetermined LD50. It is among the food additives encoded by European Union, identified by the initials E 501.
Sodium bicarbonate (IUPAC name: sodium hydrogen carbonate) is a chemical compound with the formula Na HCO3. Sodium bicarbonate is a white solid that is crystalline but often appears as a fine powder.It has a slightly salty, alkaline taste resembling that of washing soda (sodium carbonate). The natural mineral form is nahcolite. It is a component of the mineral natron and is found dissolved in many mineral springs.It is among the food additives encoded by European Union, identified by the initials E 500.aHCO 3 is mainly prepared by the Solvay process, which is the reaction of sodium chloride, ammonia, and carbon dioxide in water. Calcium carbonate is used as the source of CO 2 and the resultant calcium oxide is used to recover the ammonia from the ammonium chloride. The product shows a low purity (75%).