1.05012

Potassium hydroxide

pellets EMPLURA^®

• Synonym(s): Potash caustic, Caustic potash
• Linear Formula: KOH
• CAS Number: 1310-58-3
• Molecular Weight: 56.11
• MDL number: MFCD00003553
• UNSPSC Code: 12352305
• EC Index Number: 215-181-3
• NACRES: NA.21

Properties

• vapor pressure: 1 mmHg ( 719 °C)
• Quality Level: 200
• product line: EMPLURA^®
• assay: ≥84.0% 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.)
• anion traces: carbonate (K₂CO₃): ≤2.0%; chloride (Cl^-): ≤0.01%; sulfate (SO₄^2-): ≤0.01%
• cation traces: Al: ≤0.002%; Fe: ≤0.002%; heavy metals (as Pb): ≤0.002%
• storage temp.: 2-30°C
• SMILES string: [OH-].[K+]
• InChI: 1S/K.H2O/h;1H2/q+1;/p-1
• InChI key: KWYUFKZDYYNOTN-UHFFFAOYSA-M

Description

Application

• Transformation of hard pollen into soft matter.: This study demonstrates the transformation of hard pollen into soft matter using potassium hydroxide treatment, providing insights into new materials′ potential applications in soft robotics and other fields (Fan et al., 2020).


• Radiation induced oxidation of [(18)F]fluorothia fatty acids under cGMP manufacturing conditions.: The research highlights the role of potassium hydroxide in the oxidation process of radiolabeled fatty acids, which is critical for producing radiopharmaceuticals used in medical imaging (Pandey et al., 2020).


• Molecular epidemiology of otomycosis in Isfahan revealed a large diversity in causative agents.: This study utilized potassium hydroxide preparations to identify fungal pathogens in otomycosis, showcasing its importance in clinical diagnostics and microbiological studies (Aboutalebian et al., 2019).

Analysis Note

Assay (acidimetric, KOH): ≥ 84.0 %
Carbonate (as K₂CO₃): ≤ 2.0 %
Chloride (Cl): ≤ 0.01 %
Sulfate (SO₄): ≤ 0.01 %
Heavy metals (as Pb): ≤ 0.002 %
Al (Aluminium): ≤ 0.002 %
Fe (Iron): ≤ 0.002 %

Legal Information

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

Safety Information

• 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
• Storage Class: 8A - Combustible, corrosive hazardous materials
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable