Sigma-Aldrich Potassium Hydroxide Soluti

Quality Level

300

Product Line

EMSURE^®

Form

liquid

Concentration

46.0-48.0% KOH

Impurities

≤0.0001% As (Arsenic)
≤0.0003% Total nitrogen (N)
≤0.0005% Ca (Calcium)
≤0.0005% Cu (Copper)
≤0.0005% Fe (Iron)
≤0.0005% Heavy metals (as Pb)
≤0.0005% mg (Magnesium)
≤0.0005% Ni (Nickel)
≤0.0005% Pb (Lead)
≤0.0005% Phosphate (PO₄)
≤0.0005% Zn (Zinc)
≤0.001% Al (Aluminium)
≤0.002% Sulfate (SO₄)
≤0.004% Chloride (Cl)
≤1.0% Carbonate (as K₂CO₃)

pH

>13.5 (20 °C in H₂O)

Storage Temp.

2-30°C

Related Categories

Caustic Alkalis & Bases

Analysis Note

Assay (acidimetric): 46.0 - 48.0 %
Carbonate (as K₂CO₃): ≤ 1.0 %
Chloride (Cl): ≤ 0.004 %
Phosphate (PO₄): ≤ 0.0005 %
Sulfate (SO₄): ≤ 0.002 %
Total nitrogen (N): ≤ 0.0003 %
Heavy metals (as Pb): ≤ 0.0005 %
Al (Aluminium): ≤ 0.001 %
As (Arsenic): ≤ 0.0001 %
Ca (Calcium): ≤ 0.0005 %
Cu (Copper): ≤ 0.0005 %
Fe (Iron): ≤ 0.0005 %
mg (Magnesium): ≤ 0.0005 %
Ni (Nickel): ≤ 0.0005 %
Pb (Lead): ≤ 0.0005 %
Zn (Zinc): ≤ 0.0005 %EMSURE is a registered trademark of Merck KGaA, Darmstadt, GermanyGHS05,GHS07H290 - H302 - H314P234 - P270 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338