potassium hydrogen carbonate potassium hydrate • potassium hydrogen tartrate · · · Info · Definitions · Synonyms · Characters · · potassium hydrogen carbonate · · Text Common · · Latin · · Scripts 28 · · Length 10 · · Syllables Definitions · · · (noun) a crystalline salt (KHCO3) that is used in baking powder and as an antacid. Synonyms: potassium bicarbonate, potassium acid carbonate, potassium hydrogen carbonate. · · Noun Definition 1 Synonyms · · · potassium bicarbonate · · Synonym 1 potassium acid carbonate · · Synonym 2 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 c latin small letter c U+0063 d latin small letter d U+0064 e latin small letter e U+0065 g latin small letter g U+0067 h latin small letter h U+0068 i latin small letter i U+0069 m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075 y latin small letter y U+0079