POTASSIUM HYDROXIDE HYDRATE 99.995

Analysis Note

Purity (metallic): ≥ 99.995 %
Assay of KOH‧1H₂O: ≥ 85 %
Assay of potassium carbonate: ≤ 1.0 %
Chloride (Cl): ≤ 1.0 ppm
Phosphate (PO₄): ≤ 0.05 ppm
Silicate (as SiO₂): ≤ 5 ppm
Sulfate (SO₄): ≤ 5 ppm
Al (Aluminium): ≤ 0.05 ppm
As (Arsenic): ≤ 0.1 ppm
Ba (Barium): ≤ 10.0 ppm
Ca (Calcium): ≤ 0.5 ppm
Cd (Cadmium): ≤ 0.01 ppm
Ce (Cerium): ≤ 0.01 ppm
Co (Cobalt): ≤ 0.010 ppm
Cr (Chromium): ≤ 0.010 ppm
Cu (Copper): ≤ 0.010 ppm
Eu (Europium): ≤ 0.010 ppm
Fe (Iron): ≤ 0.05 ppm
Hg (Mercury): ≤ 0.01 ppm
La (Lanthanum): ≤ 0.010 ppm
Li (Lithium): ≤ 0.5 ppm
Mg (Magnesium): ≤ 0.10 ppm
Mn (Manganese): ≤ 0.050 ppm
Na (Sodium): ≤ 5 ppm
Ni (Nickel): ≤ 0.010 ppm
Pb (Lead): ≤ 0.010 ppm
Sc (Scandium): ≤ 0.010 ppm
Sm (Samarium): ≤ 0.010 ppm
Sr (Strontium): ≤ 0.50 ppm
Tl (Thallium): ≤ 0.01 ppm
Y (Yttrium): ≤ 0.010 ppm
Yb (Ytterbium): ≤ 0.010 ppm
Zn (Zinc): ≤ 0.050 ppm

Legal Information

SUPRAPUR is a registered trademark of Merck KGaA, Darmstadt, Germany

Molecular Weight: 56.11 (anhydrous basis). Empirical Formula: HKO · xH₂O. grade: for inorganic trace analysis. Quality Level: 100. Assay: 99.995%. form: solid. potency: 333 . mg/kg LD₅₀, oral (Rat). pH: >. 13.5 (20 . °C, 50 . g/L in H₂O). bp: 1320 . °C/1013 . hPa. mp: 143 . °C. storage temp.: 2-30°C. InChI: 1S/K.2H2O/h. 2*1H2/q+1. . /p-1. InChI key: LUMVCLJFHCTMCV-UHFFFAOYSA-M. Pictograms: GHS05,GHS07. Signal Word: Danger. Hazard Statements: H290 - H302 - H314. Precautionary Statements: P234 - P260 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338. Hazard Classifications: Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A. Storage Class Code: 8A - Combustible, corrosive hazardous materials. WGK: WGK 1. Flash Point(F): Not applicable. Flash Point(C): Not applicable.