Potassium phosphate dibasic

Product Name

Potassium phosphate dibasic, ACS reagent, ≥98%

InChI key

ZPWVASYFFYYZEW-UHFFFAOYSA-L

InChI

1S/2K.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2

SMILES string

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

grade

ACS reagent

agency

suitable for SM 5210

assay

≥98%

form

powder

impurities

≤0.001% Nitrogen compounds (as N)
≤0.01% Insoluble matter

loss

≤1.0% loss on drying, 105°C

pH

8.5-9.6 (25 °C, 5% in solution)

solubility

water: soluble (completely)

anion traces

chloride (Cl^-): ≤0.003%
sulfate (SO₄^2-): ≤0.005%

cation traces

Fe: ≤0.001%
Na: ≤0.05%
heavy metals: ≤5 ppm (by ICP-OES)

Quality Level

200