potassium bicarbonate Appearance: powder Grade Standard: Food Grade, Industrial Grade Application: industry and food Quick Details Classification:CarbonateType: ... 4Potassium (K), %≥38.038.4Water-insoluble substance, %≤0.010.007Sulfate (K2SO4), %≤0.040.007Heavy metal, % (Pb)≤20ppm10ppmArsenic (As), %≤10ppm2ppmFerric oxide ... l solution)8-98.3 potassium bicarbonate 99% Food Grade, Industrial Grade