Potassium hydroxide

SMILES string

[OH-].[K+], [OH-].[K+]

InChI

1S/K.H2O/h;1H2/q+1;/p-1

InChI key

KWYUFKZDYYNOTN-UHFFFAOYSA-M

vapor pressure

1 mmHg ( 719 °C)

grade

puriss.

assay

85-100.5%

form

pellets

quality

meets analytical specification of Ph. Eur., BP

impurities

residual solvents, complies, ≤0.0005% heavy metals (as Pb), ≤0.0005% total nitrogen (N), ≤1% K₂CO₃

pH

~13.5 (25 °C, 5.6 g/L)

mp

361 °C (lit.)

anion traces

chloride (Cl^-): ≤50 mg/kg, phosphate (PO₄^3-): ≤10 mg/kg, silicate (as SiO₂): ≤100 mg/kg, sulfate (SO₄^2-): ≤20 mg/kg

cation traces

Al: ≤10 mg/kg, As: ≤3 mg/kg, Ca: ≤20 mg/kg, Fe: ≤10 mg/kg, Na: ≤1%

Quality Level

200