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Product Name: Potassium Stearate
Chemical Formula: C18H35KO2
CAS Number: 593-29-3
Synonyms: Stearic Acid, potassium salt; Octadecanoic acid, potassium salt
Recommended Use: Emulsifier in cosmetics, stabilizer for rubber, surfactant in cleaning products
Supplier: Refer to packaging label or purchasing documentation
Emergency Contact: Access local poison control or emergency response
GHS Classification: Eye irritation (Category 2A), Skin irritation (Category 2), Not classified as hazardous for transportation
Label Elements: Pictogram: Exclamation mark
Signal Word: Warning
Hazard Statements: Causes serious eye irritation; Causes skin irritation
Precautionary Statements: Wash hands thoroughly after handling; Wear protective gloves/eye protection; If on skin: Wash with plenty of water; If in eyes: Rinse with water for several minutes; Remove contact lenses if present
Other Hazards: Dust may cause respiratory discomfort
Chemical Identity: Potassium Stearate
PURITY: Typically >98%
Impurities: Trace amounts of water, free fatty acids, potassium salts
Ingredients: Single substance
Inhalation: Move to fresh air. Seek medical advice if symptoms persist.
Skin Contact: Remove contaminated clothing. Rinse skin with plenty of water. Seek medical help for persistent irritation.
Eye Contact: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing. Consult a physician if irritation continues.
Ingestion: Rinse mouth. Do not induce vomiting. Get medical attention if feeling unwell.
Most Important symptoms and effects: Irritation, redness, discomfort
Suitable Extinguishing Media: Use dry chemical, foam, carbon dioxide, water spray
Unsuitable Extinguishing Media: Avoid direct water stream, which may spread material
Specific Hazards: Combustion may emit carbon monoxide, carbon dioxide, potassium oxide fumes
Protective Equipment for Firefighters: Wear self-contained breathing apparatus, chemical protective clothing
Special Procedures: Move containers away from fire. Cool with water spray if safe
Personal Precautions: Use personal protective equipment as detailed in Section 8. Avoid creating dust clouds. Ventilate area.
Environmental Precautions: Prevent entry into drains, surface water, soil. Contain spill with inert absorbent.
Spill Clean-up Methods: Sweep or vacuum up and place in labeled waste container. Avoid contact with spilled material.
Disposal: Refer to Section 13 for proper disposal methods
Handling: Use in well-ventilated areas. Avoid dust generation. Minimize skin and eye contact. Ensure containers are properly labeled.
Storage: Store in cool, dry place. Keep container tightly closed. Keep separated from strong acids and oxidizers.
Incompatible Materials: Acids, strong oxidizing agents
Hygiene Measures: Wash hands after handling, do not eat, drink, or smoke while using the material
Occupational Exposure Limits: No established exposure limits for potassium stearate; treat as nuisance dust (ACGIH TLV for particulates: 10 mg/m³ inhalable, 3 mg/m³ respirable)
Engineering Controls: Use local exhaust ventilation to control airborne dust.
Personal Protective Equipment: Chemical-resistant gloves, safety goggles or face shield, dust mask or respirator if dust is generated, long-sleeved clothing
Environmental Controls: Prevent leakage or spillage to contain potential environmental contamination
Appearance: White, off-white powder or granules
Odor: Slight fatty odor
pH (1% solution): Around 10.0–11.5 at 20°C
Boiling Point: Not applicable
Melting Point: 215–220°C
Solubility in Water: Slightly soluble (about 5 g/L at room temperature)
Specific Gravity: 1.08–1.10
Vapor Pressure: Not relevant for solid
Partition Coefficient (n-octanol/water): Not determined
Flash Point: Not required for inorganic solids
Decomposition Temperature: Decomposes at >220°C
Evaporation Rate: Not applicable
Chemical Stability: Stable under normal conditions of use and storage
Reactivity: May react with acids to release stearic acid
Hazardous Reactions: No dangerous polymerization known
Incompatible Materials: Avoid contact with acids, strong oxidizers
Decomposition Products: Thermal decomposition may release potassium oxides, carbon monoxide, carbon dioxide
Likely Routes of Exposure: Inhalation, ingestion, skin, and eye contact
Acute Effects: Mild skin and eye irritation, coughing if inhaled as dust
Chronic Effects: No known significant effects with repeated exposure
Toxicological Data: Oral LD50 (rat): >2000 mg/kg; no significant acute toxicity reported
Carcinogenicity: Not identified as carcinogenic by IARC, ACGIH, NTP, or OSHA
Mutagenicity: Not classified as mutagenic
Reproductive Effects: No significant effects reported
Ecotoxicity: Low potential for aquatic toxicity due to poor water solubility
Persistence and Degradability: Expected to be biodegradable; breaks down in natural environments
Bioaccumulative Potential: Not expected to bioaccumulate appreciably
Mobility in Soil: Limited, binds to soils
Other Adverse Effects: No data reporting long-term environmental harm
Waste Disposal Methods: Dispose of in accordance with local, state, and national regulations. Transfer to approved waste disposal facility.
Container Disposal: Triple rinse container, offer for recycling or reconditioning if available, or dispose as per local guidelines
Special Precautions: Avoid contamination of water systems during disposal
UN Number: Not regulated
Proper Shipping Name: Potassium Stearate
Transport Hazard Class: Not classified as dangerous for transport
Packing Group: Not assigned
Environmental Hazards: Not classified as marine pollutant or environmentally hazardous
Special Transport Precautions: Avoid excessive moisture, keep packaged securely
OSHA Status: Not hazardous under OSHA Hazard Communication Standard
TSCA (United States): Listed in the Toxic Substances Control Act inventory
EINECS/ELINCS (EU): Listed
SARA Title III: Not subject to reporting under Sections 302, 304, 313
REACH (EU): Complies with registration requirements
WHMIS (Canada): Not controlled material
Other National/International Regulations: Check regional regulatory lists for specific requirements regarding use and disposal
West Ujimqin Banner, Xilingol League, Inner Mongolia, China
