Potassium Hydroxide (Caustic Potash), CAS 1310-58-3, is a strong inorganic alkali, available in 90% solid flake/pellet and 48% liquid solution grades. It is corrosive and widely used in soap, biodiesel, battery, water treatment and chemical synthesis. TNJ Chemical is the leading manufacturer and exporter since from 2001. We guarantee high quality, competitive price, stable supply, fast delivery and tech support etc. To find more, please contact sales@tnjchem.com
Product Information
Product Name: Potassium Hydroxide
CAS No.: 1310-58-3
UN No.: 1813 (solid) / 1814 (solution)EC No.: 215-181-3
Synonyms: Caustic potash, Potash lye
Molecular Formula: KOH
Molecular Weight: 56.11
HS Code: 281520
Chemphysical Properties
Appearance: White flake / pellet / solid stick; aqueous solution is clear colourless liquid
Density: 2.04 g/cm³ (solid)
Melting Point: 360 °C
Boiling Point: 1327 °C
Solubility: Highly soluble in water, releasing large heat; soluble in ethanol and glycerol
Hygroscopicity: Strongly hygroscopic, easy to absorb CO₂ from air and turn into potassium carbonate
Characteristic: Strong corrosivity, highly alkaline
Quality Specification
| Item | KOH Flake 90% | KOH Liquid 48% |
|---|---|---|
| KOH | ≥90.0% | 48.0±1.0% |
| K₂CO₃ | ≤0.5% | ≤0.3% |
| Chloride (as Cl) | ≤0.01% | ≤0.008% |
| Fe | ≤0.001% | ≤0.0008% |
| Na | ≤0.8% | ≤0.5% |
Use & Application
Soap & detergent: Saponification raw material for liquid soap, potassium soap.
Biodiesel: Catalyst for transesterification reaction.
Battery industry: Electrolyte for alkaline batteries.
Water treatment: pH adjustment.
Chemical synthesis: Raw material for potassium salts, fine chemicals.
Agriculture: Potassium source, pH regulator.
Textile & dyeing: Mercerizing, scouring auxiliary.
Packing
Solid KOH: 25kg PE bag inside PP woven bag / 25kg iron drum.
Liquid KOH 48%: 200kg HDPE drum, 1000kg IBC.Hazardous goods packing, custom packing available.
Delivery & Storage
Hazard Class 8 (Corrosive substance). Keep tightly sealed.
Store in dry, ventilated warehouse, separated from acids, oxidants, organic materials and foodstuff.
Prevent moisture and CO₂ absorption. Wear PPE during handling.
Shelf life: 12 months under proper sealed storage.
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