Sigma Potassium carbonate 500 GR.

product line

BioXtra

Quality Level

200

assay

≥99.0%

form

powder

impurities

≤0.0005% Phosphorus (P)
≤0.1% Insoluble matter

pH

11-13 (25 °C, 138 g/L)

mp

891 °C (lit.)

solubility

H₂O: 1 M, clear, colorless

anion traces

chloride (Cl^–): ≤0.005%
sulfate (SO₄^2-): ≤0.02%

cation traces

Al: ≤0.0005%
Ca: ≤0.001%
Cu: ≤0.0005%
Fe: ≤0.0005%
Mg: ≤0.0005%
NH₄⁺: ≤0.05%
Na: ≤0.5%
Pb: ≤0.001%
Zn: ≤0.0005%