1.05545

Potassium hydroxide solution

47%, for analysis EMSURE^®

• Synonym(s): KOH Solution 47%
• UNSPSC Code: 12352305
• NACRES: NA.21

Properties

• product name: Potassium hydroxide solution 47%, for analysis EMSURE^®
• 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

Description

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 %

Legal Information

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

Safety Information

• pictograms: GHS05,GHS07
• signalword: Danger
• hcodes: H290 - H302 - H314
• pcodes: P234 - P270 - 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: 8B - Non-combustible, corrosive hazardous materials
• wgk_germany: WGK 1