Potassium sulfate

InChI key

OTYBMLCTZGSZBG-UHFFFAOYSA-L

InChI

1S/2K.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2

SMILES string

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

assay

99-101%

form

solid

quality

meets analytical specification of Ph. Eur.

impurities

acidity or alkalinity, in accordance, residual solvents, complies, ≤0.001% heavy metals (as Pb)

loss

≤0.5% loss on drying, 130 °C

solubility

boiling water: soluble 1 gm in 4 ml, glycerol: soluble 1 gm in 75 ml, water: soluble 1 gm in 8.3 ml, alcohol: insoluble

anion traces

chloride (Cl^-): ≤20 mg/kg

cation traces

As: ≤2 mg/kg, Ca: ≤50 mg/kg, Fe: ≤10 mg/kg, Mg: ≤20 mg/kg, Na: ≤100 mg/kg

suitability

in accordance for appearance of solution

Quality Level

200