SDS Introduction
📄 Potassium Hydroxide SDS PDF download, GHS classification, CAS 1310-58-3, hazard statements, and industrial safety information.
Potassium hydroxide is a strong inorganic base used in chemical manufacturing, alkaline cleaning, soap production, battery manufacturing, and pH adjustment. It is highly corrosive and can cause severe skin burns and serious eye damage.
Quick Answer
Potassium hydroxide is a highly corrosive strong alkali. Contact with solid potassium hydroxide or concentrated solutions can cause severe chemical burns and permanent eye damage.
Quick Summary
| Item | Details |
|---|---|
| Product Name | Potassium Hydroxide |
| CAS Number | 1310-58-3 |
| UN Number | UN1813 / UN1814* |
| Physical State | Solid / Liquid Solution |
| Main Hazard | Strongly Corrosive |
| GHS Classification | Skin Corrosion, Serious Eye Damage |
| Primary Use | Chemical manufacturing, alkaline cleaning, soap production, batteries, pH adjustment |
* UN1813 applies to solid potassium hydroxide; UN1814 applies to potassium hydroxide solution.
What is Potassium Hydroxide?
- Strong inorganic base with the chemical formula KOH
- Pure potassium hydroxide is a white solid, commonly supplied as pellets, flakes, or powder
- Potassium hydroxide solutions are colorless liquids
- Highly soluble in water and releases significant heat during dissolution
- Used in industrial cleaning, soap manufacturing, chemical production, and battery applications
Common Ingredients
Not applicable (Pure substance)
Basic Information
| Property | Value | Notes |
|---|---|---|
| Chemical Formula | KOH | Strong inorganic base |
| CAS Number | 1310-58-3 | Standard identifier |
| Appearance | White solid | Pellets, flakes, or powder |
| Melting Point | 360°C | Pure KOH |
| UN Number | UN1813 | Solid potassium hydroxide |
| Classification | Corrosive | Highly corrosive alkali |
GHS Hazard Classification


| Symbol | Classification | Description |
|---|---|---|
| 🧪 | Skin Corrosion (Category 1A) | Causes severe skin burns and eye damage |
| ⚠️ | Serious Eye Damage (Category 1) | Causes serious eye damage |
Hazard Statements
| Code | Statement |
|---|---|
| H290 | May be corrosive to metals |
| H302 | Harmful if swallowed* |
| H314 | Causes severe skin burns and eye damage |
* Applicable classification may vary by concentration and supplier.
Key Hazards
- Inhalation – Dust or mist may cause severe respiratory irritation
- Skin Contact – Causes severe chemical burns
- Eye Contact – Can cause serious and potentially permanent eye damage
- Ingestion – Causes severe burns to the mouth, throat, and digestive tract
- Water Contact – Dissolution in water generates substantial heat and may cause splashing
First Aid Measures
- Inhalation – Move to fresh air immediately and seek medical attention
- Skin Contact – Remove contaminated clothing and rinse immediately with plenty of water
- Eye Contact – Rinse cautiously with water for at least 15 minutes and obtain immediate medical attention
- Ingestion – Do not induce vomiting; rinse mouth and seek immediate medical attention
Recommended PPE

| PPE | Recommendation |
|---|---|
| Safety Glasses | Chemical splash goggles with face shield required |
| Chemical Resistant Gloves | Required |
| Respirator | Appropriate protection required where dust or mist may occur |
| Protective Clothing | Chemical-resistant protective clothing required |
Storage and Handling
- Store in a tightly closed, dry, and compatible container
- Keep away from moisture and water until controlled dilution is performed
- Keep away from acids and incompatible metals
- Add potassium hydroxide slowly to water when preparing solutions; never add water rapidly to concentrated KOH
- Use adequate ventilation and appropriate local exhaust
Frequently Asked Questions
Is Potassium Hydroxide Dangerous?
Yes. Potassium hydroxide is highly corrosive and can cause severe chemical burns and serious eye damage.
Is Potassium Hydroxide Flammable?
No. Potassium hydroxide itself is not flammable, but it can react with certain metals and generate flammable hydrogen gas.
What PPE Should Be Used?
Chemical-resistant gloves, chemical splash goggles, face shield, protective clothing, and appropriate respiratory protection are recommended.
What Is Potassium Hydroxide Used For?
It is used in chemical manufacturing, industrial cleaning, soap production, batteries, biodiesel production, and pH adjustment.
SDS Download (English)
📄 [Potassium Hydroxide Safety Data Sheet (SDS) PDF – Carl Roth]
Click to download the official SDS PDF provided by Carl Roth.
📄 [Potassium Hydroxide Safety Data Sheet (SDS) PDF – Fisher Scientific]
Click to download the official SDS PDF provided by Fisher Scientific.
📄 [Potassium Hydroxide Safety Data Sheet (SDS) PDF – ERCO Worldwide]
Click to download the official SDS PDF provided by ERCO Worldwide.
Important Notice
⚠️ This information is provided for reference only.
Regulatory classification and requirements may vary depending on manufacturer and jurisdiction.
Always consult the official SDS issued by the supplier before handling the substance.