1.05033

Kaliumhydroxid

pellets for analysis EMSURE^®

• Synonym(e): Ätzkali, Kalihydrat, Kaliumoxidhydrat, Aetzkali
• Lineare Formel: KOH
• CAS-Nummer: 1310-58-3
• Molekulargewicht: 56.11
• NACRES: NA.21
• EC Index Number: 215-181-3
• UNSPSC Code: 12352305
• MDL number: MFCD00003553
• eCl@ss: 38100303
• Assay: ≥85.0% KOH basis (acidimetric)
• Grade: reagent grade
• Form: solid
• Solubility: 1130 g/L

Eigenschaften

• Quality Segment: 300
• grade: reagent grade
• agency: suitable for SM 5210
• vapor pressure: 1 mmHg ( 719 °C)
• product line: EMSURE^®
• assay: ≥85.0% KOH basis (acidimetric)
• form: solid
• potency: 333 mg/kg LD₅₀, oral (Rat)
• pH: 14 (20 °C, 56 g/L in H₂O)
• mp: 361 °C (lit.)
• solubility: 1130 g/L
• anion traces: carbonate (K₂CO₃): ≤1.0%, chloride (Cl^-): ≤0.005%, phosphate (PO₄^3-): ≤0.0005%, silicate (as SiO₂): ≤0.005%, sulfate (SO₄^2-): ≤0.0005%
• cation traces: Al: ≤0.001%, Ca: ≤0.001%, Cu: ≤0.0002%, Fe: ≤0.0005%, N: ≤0.0005%, Na: ≤0.5%, Ni: ≤0.0005%, Pb: ≤0.0005%, Zn: ≤0.0025%, heavy metals (as Pb): ≤0.0005%
• storage temp.: 2-30°C
• SMILES string: [OH-].[K+]
• InChI: 1S/K.H2O/h;1H2/q+1;/p-1
• InChI key: KWYUFKZDYYNOTN-UHFFFAOYSA-M

Beschreibung

Application

Potassium hydroxide (KOH) can be used:

• To precipitate perchlorate ions after the addition of perchloric acid during the extraction of intracellular metabolites from yeast. It is also utilized to adjust the pH of the solution, ensuring optimal conditions for subsequent analysis.
• In corrosion testing of anodized aluminium alloys to evaluate mass loss and corrosion resistance of the anodic layer.
• To basify reaction mixtures, facilitating the derivatization needed for gas chromatography-mass spectrometry (GC-MS) analysis in the identification of metabolic precursors.

Analysis Note

Gehalt (acidimetrisch, KOH): ≥ 85,0 %
Carbonat (als K₂CO₃): ≤ 1,0 %
Chlorid (Cl): ≤ 0,005 %
Phosphat (PO₄): ≤ 0,0005 %
Silicat (SiO₂): ≤ 0,005 %
Sulfat (SO₄): ≤ 0,0005 %
Gesamtstickstoff (N): ≤ 0,0005 %
Schwermetalle (als Pb): ≤ 0,0005 %
Al (Aluminium): ≤ 0,001 %
Ca (Calcium): ≤ 0,001 %
Cu (Kupfer): ≤ 0,0002 %
Fe (Eisen): ≤ 0,0005 %
Na (Natrium): ≤ 0,5 %
Ni (Nickel): ≤ 0,0005 %
Pb (Blei): ≤ 0,0005 %
Zn (Zink): ≤ 0,0025 %

Legal Information

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

Sicherheitshinweise

• pictograms: GHS05,GHS07
• signalword: Danger
• hcodes: H290,H302,H314
• pcodes: 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
• Lagerklasse: 8B - Non-combustible corrosive hazardous materials
• flash_point_f: Not applicable
• flash_point_c: Not applicable