Potassium carbonate

Nombre del producto

Potassium carbonate, puriss. p.a., ACS reagent, anhydrous, ≥99.0% (T)

InChI key

BWHMMNNQKKPAPP-UHFFFAOYSA-L

InChI

1S/CH2O3.2K/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2

SMILES string

[K+].[K+].[O-]C([O-])=O

grade

ACS reagent
puriss. p.a.

assay

≥99.0% (T)

form

powder or crystals

impurities

≤0.001% total nitrogen (N)
≤0.004% total sulfur (as SO₄)

loss

≤1% loss on drying, 300 °C

pH

11-13 (25 °C, 138 g/L)

mp

891 °C (lit.)

anion traces

chloride (Cl^-): ≤30 mg/kg
phosphate (PO₄^3-): ≤10 mg/kg
silicate (as SiO₂): ≤50 mg/kg

cation traces

Ag: ≤5 mg/kg
Al: ≤5 mg/kg
As: ≤0.5 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Na: ≤200 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Tl: ≤5 mg/kg
Zn: ≤5 mg/kg
heavy metals: ≤5 ppm (by ICP-OES)

Quality Level

200