1310-58-3 | Potassium Hydroxide

Chemical type

• Strong inorganic base
• Alkali metal hydroxide

^[1]

• Alkaline aqueous etchant

^[2]

• Inorganic base, electrolyte

^[3]

Key properties

• Highly alkaline
• Strong CO₂ absorption capability
• Regenerable via high-temperature calcination

^[1]

• Effective for vitreous silica at high temperatures
• Etching contrast ~1:300 for laser-modified fused silica
• Etching rates comparable to Hydrofluoric Acid (HF) for irradiated tracks
• Safer alternative to HF
• Strong dependence on temperature and concentration

^[2]

• Strong alkali
• Conducting electrolyte for electrochemical etching

^[3]

• Liquid absorbent in Direct Air Capture (DAC) systems
• Reacts with CO₂ to form potassium carbonate
• Regenerated for cyclic CO₂ capture

^[1]

• Etchant in FLICE for hollow structures in fused silica
• Dissolving laser-irradiated areas in glass
• Alternative to NaOH and HF in micromachining

^[2]

• Electrolyte solution (0.5M) for fabricating cylindrical submicron tungsten tips via liquid membrane electrochemical etching.

^[3]

Classification by use

• Chemicals used in gas absorption
• Chemicals used in direct air capture
• Chemicals used in cyclic regeneration systems

^[1]

• Chemicals used as selective etchants
• Agents for high-contrast etching in laser processing

^[2]

• Chemicals used in electrode fabrication/processing
• Electrolytes for electrochemical machining

^[3]

A trustworthy factory and manufacturer

1. [Cite:1] A Comparative Review of terrestrial and marine carbon dioxide removal (CDR) methods, Carbon Capture Science & Technology, Volume 18, March 2026, 100550
2. [Cite:2] Nanochannels in Fused Silica through NaOH Etching Assisted by Femtosecond Laser Irradiation, Materials, 2024, 17(19), 4906
3. [Cite:3] Electrochemical cutting of microslits on metallic glass using cylindrical submicron tips, Electrochemistry Communications, Volume 184, March 2026, 108112