Potassium Hydroxide (Caustic Potash)
Extreme RiskCAS Number
1310-58-3
Formula
KOH
Version
5.1
Revision Date
2024-11-28
Skin Corrosion Cat. 1ASerious Eye Damage Cat. 1Acute Toxicity Cat. 4 (Oral)
SECTIONS
1
Identification
Product Name
Potassium Hydroxide (Caustic Potash)
Product Code
POTASSIUM-HYDROXIDE
Recommended Use
Laboratory chemicals, Industrial applications
Restricted Use
Follow manufacturer guidelines
Manufacturer Details
Multiple Suppliers
Contact manufacturer for details
Phone: Contact manufacturer
Emergency: CHEMTREC: +1-800-424-9300
2
Hazard Identification
Danger
Classification:
• Skin Corrosion Cat. 1A
• Serious Eye Damage Cat. 1
• Acute Toxicity Cat. 4 (Oral)
Hazard Statements:
H302 - Harmful if swallowed
H314 - Causes severe skin burns and eye damage
H290 - May be corrosive to metals
Precautionary Statements:
P260 - Do not breathe dust
P280 - Wear protective gloves/eye protection
P301+P330+P331 - IF SWALLOWED: Rinse mouth. Do NOT induce vomiting
3
Composition/Information on Ingredients
Substance/Mixture
Substance
| Component | CAS Number | EC Number | Concentration | Classification |
|---|---|---|---|---|
| Potassium Hydroxide (Caustic Potash) | 1310-58-3 | 215-181-3 | 100% | Skin Corrosion Cat. 1A, Serious Eye Damage Cat. 1, Acute Toxicity Cat. 4 (Oral) |
4
First Aid Measures
Inhalation:
Remove to fresh air. Seek medical attention.
Skin Contact:
Immediately flush with water for at least 20 minutes. Seek medical attention.
Eye Contact:
Immediately flush with water for at least 20 minutes. Seek immediate medical attention.
Ingestion:
Do NOT induce vomiting. Rinse mouth. Seek immediate medical attention.
Most Important Symptoms:
Seek medical attention if symptoms persist.
5
Fire Fighting Measures
suitable Extinguishing:
Use media appropriate for surrounding fire
unsuitable Extinguishing:
Water may cause violent reaction
specific Hazards:
Not combustible but reacts with many materials.
protective Equipment:
6
Accidental Release Measures
personal Precautions:
Use personal protective equipment. Ensure adequate ventilation.
environmental Precautions:
Prevent further leakage. Do not allow to enter drains or water courses.
cleanup Methods:
Contain spillage with non-combustible absorbent material and place in container for disposal.
reference:
See Section 13 for disposal considerations.
7
Handling and Storage
handling:
Use in well-ventilated areas. Avoid contact with skin and eyes.
storage:
incompatibilities:
8
Exposure Controls/Personal Protection
exposure Limits:
• {"type":"OSHA PEL","value":"Not established"}
• {"type":"ACGIH TLV","value":"2 mg/m³ Ceiling"}
• {"type":"NIOSH REL","value":"2 mg/m³ Ceiling"}
engineering:
Use explosion-proof equipment. Provide appropriate exhaust ventilation.
ppe:
respiratory:Use appropriate respirator when exposure limits are exceeded.
hand:Chemical-resistant gloves
eye:Safety glasses with side shields or chemical safety goggles
skin:Wear appropriate protective clothing
9
Physical and Chemical Properties
appearance:White solid (pellets, flakes)
odor:Odorless
p H:14 (1% solution)
melting Point:360°C (680°F)
boiling Point:1327°C (2421°F)
flash Point:Not flammable
vapor Pressure:0 mmHg at 20°C
vapor Density:Not applicable
density:2.04 g/cm³
solubility:1210 g/L at 25°C
molecular Weight:56.11 g/mol
10
Stability and Reactivity
reactivity:
See incompatible materials.
stability:
Stable under recommended storage conditions.
conditions To Avoid:
Heat, sparks, open flames.
incompatible Materials:
hazardous Decomposition:
Thermal decomposition may produce hazardous gases.
hazardous Polymerization:
Will not occur.
11
Toxicological Information
acute Toxicity:
oral:365 mg/kg (rat)
dermal:Not available
inhalation:Not available
skin Corrosion:
See hazard classification.
eye Damage:
See hazard classification.
sensitization:
No data available
mutagenicity:
No data available
carcinogenicity:
Not classified as carcinogenic
reproductive Toxicity:
No data available
specific Target Organ:
See hazard statements.
aspiration Hazard:
No data available
12
Ecological Information
ecotoxicity:
May be harmful to aquatic organisms.
persistence:
No data available
bioaccumulation:
No data available
mobility:
No data available
other Effects:
Avoid release to the environment.
13
Disposal Considerations
waste:
Dispose of in accordance with local regulations.
contaminated:
Do not re-use empty containers.
waste Code:
Check with local authorities.
disposal:
Dispose of as hazardous waste at approved facility.
14
Transport Information
un Number:
UN 1813
shipping Name:
Potassium hydroxide, solid
hazard Class:
8 - Corrosive
packing Group:
II
marine:
Check with carrier
special:
None
iata:
UN 1813, Potassium hydroxide, solid, 8 - Corrosive, II
imdg:
UN 1813, Potassium hydroxide, solid, 8 - Corrosive, II
15
Regulatory Information
sara313:
Check with regulatory requirements.
tsca:
Listed on TSCA inventory.
dscl:
Check local regulations.
reach:
Check EU REACH requirements.
california65:
Check California Prop 65 listing.
16
Other Information
nfpa:
health:2
fire:2
reactivity:0
special:
hmis:
health:2
flammability:2
physical:0
ppe:B
prepared:
Multiple Suppliers
phone:
Contact manufacturer
disclaimer:
The information provided in this Safety Data Sheet is correct to the best of our knowledge at the date of publication.