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Potassium Sulfite
CAS No.: 10117-38-1
Formula: K2O3S
Exact Mass: 157.88400
Molecular Weight: 158.26000
PSA: 82.40000
LogP: -0.13840
Reference Price: $33/kg Inquiry Now
Potassium Sulfite 10117-38-1 MSDS

Section 1. Chemical Product and Company Identification
    Potassium sulfite
    Common Name/
    Trade Name
    Commercial Name(s)
    Chemical Name
    Chemical Family
    Potassium sulfite

Section 4. First Aid Measures
    Eye Contact        Check for and remove any contact lenses. In case of contact, immediately flush eyes with plenty of water for at    
    least 15 minutes. Cold water may be used. Get medical attention if irritation occurs.
    Skin Contact        Wash with soap and water. Cover the irritated skin with an emollient. Get medical attention if irritation develops.    
    Cold water may be used.
    Serious Skin Contact        Not available.    
    Inhalation        If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get    
    medical attention.
    Serious Inhalation        Not available.    
    Ingestion        Do NOT induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an    
    unconscious person. If large quantities of this material are swallowed, call a physician immediately. Loosen tight
    clothing such as a collar, tie, belt or waistband.
    Serious Ingestion        Not available.    

Section 5. Fire and Explosion Data
    Flammability of the Product Non-flammable.
    Auto-Ignition Temperature Not applicable.
    Flash Points        Not applicable.    
    Flammable Limits        Not applicable.    
    Not available.
    Products of Combustion
    Fire Hazards in Presence of Not applicable.
    Various Substances
    Explosion Hazards in Presence Risks of explosion of the product in presence of mechanical impact: Not available.
    of Various Substances        Risks of explosion of the product in presence of static discharge: Not available.    
    Fire Fighting Media        Not applicable.    
    and Instructions
    Special Remarks on        Not available.    
    Fire Hazards
    Special Remarks on Explosion Not available.

Section 6. Accidental Release Measures
    Small Spill        Use appropriate tools to put the spilled solid in a convenient waste disposal container. Finish cleaning by    
    spreading water on the contaminated surface and dispose of according to local and regional authority
    Large Spill
    Use a shovel to put the material into a convenient waste disposal container. Finish cleaning by spreading water
    on the contaminated surface and allow to evacuate through the sanitary system.
    Potassium sulfite

Section 7. Handling and Storage
    Precautions        Do not breathe dust. Keep away from incompatibles such as oxidizing agents.    
    Storage        Keep container tightly closed. Keep container in a cool, well-ventilated area. Air Sensitive    

Section 8. Exposure Controls/Personal Protection
    Engineering Controls        Use process enclosures, local exhaust ventilation, or other engineering controls to keep airborne levels below    
    recommended exposure limits. If user operations generate dust, fume or mist, use ventilation to keep exposure to
    airborne contaminants below the exposure limit.
    Personal Protection        Safety glasses. Lab coat. Dust respirator. Be sure to use an approved/certified respirator or equivalent. Gloves.    
    Personal Protection in Case of Splash goggles. Full suit. Dust respirator. Boots. Gloves. A self contained breathing apparatus should be used
    a Large Spill        to avoid inhalation of the product. Suggested protective clothing might not be sufficient; consult a specialist    
    BEFORE handling this product.
    Exposure Limits        Not available.    

Section 9. Physical and Chemical Properties
    Physical state and appearance        Solid. (Powdered solid.        Crystalline powder. Odor        Odorless.    
    Crystals solid.)
    Taste        Not available.    
    Molecular Weight        158.26 g/mole    
    pH (1% soln/water)        Not available.    
    Boiling Point        Not available.    
    Melting Point        Not available.    
    Critical Temperature        Not available.    
    Not available.
    Specific Gravity
    Vapor Pressure        Not applicable.    
    Not available.
    Vapor Density
    Volatility        Not available.    
    Odor Threshold        Not available.    
    Not available.
    Water/Oil Dist. Coeff.
    Ionicity (in Water)        Not available.    
    See solubility in water.
    Dispersion Properties
    Solubility        Soluble in cold water.    

Section 10. Stability and Reactivity Data
    Stability        The product is stable.    
    Not available.
    Instability Temperature
    Conditions of Instability        Incompatible materials, air    
    Incompatibility with various        Reactive with oxidizing agents.    
    substances        Slightly reactive to reactive with acids.    
    Corrosivity        Non-corrosive in presence of glass.    
    Potassium sulfite
    Air sensitive. Oxidizes in air to sulfate.
    Special Remarks on
    Special Remarks on        Not available.    
    Polymerization        Will not occur.    

Section 11. Toxicological Information
    Routes of Entry        Eye contact. Inhalation. Ingestion.    
    Toxicity to Animals        LD50: Not available.    
    LC50: Not available.
    Chronic Effects on Humans Not available.
    Other Toxic Effects on
    Slightly hazardous in case of skin contact (irritant, sensitizer), of ingestion, of inhalation.
    Special Remarks on        Not available.    
    Toxicity to Animals
    Special Remarks on        Not available.    
    Chronic Effects on Humans
    Special Remarks on other        Potential Health Effects:    
    Toxic Effects on Humans        Skin: May cause skin irritation. May cause contact dermatitis.    
    Eyes: May cause eye irritation. May cause conjunctivitis in sensitive individuals.
    Inhalation: Can cause respiratory tract irritation. Inhalation can also trigger the onset of hypersensivity reactions,
    nasal pruritus(itiching) and rhinorrhea (runny nose in sensitized individuals.
    Ingestion: When ingested it can cause gastric irritation by liberation of sulfurous acid. Because of rapid oxidation
    to sulfate, sulfites are well tolerated until large doses are reached. Ingestion of large doses can cause nausea,
    vomiting, abdominal pain, violet colic and diarrhea. It may also cause circulatory disturbances, hypotension (low
    blood pressure), and may affect behavior/central nervous system (central nervous system stimulation followed by
    depression, seizures). In animals, hypotension, cyanosis, and cardiovascular collapse have been described
    following ingestion of lethal doses of sulfites. Some asthmatics are said to be dangerously sensitive to minute
    amounts of sulfites in foods. Symptoms of hypersensitivity are bronchoconstriction, swelling of the tongue,
    diffuculty swallowing, diaphoresis (sweating), flushing, urticaria (hives), tachycardia (rapid heart beat),
    hypotension, and anaphylaxis.

Section 12. Ecological Information
    Ecotoxicity        Not available.    
    BOD5 and COD        Not available.    
    Products of Biodegradation        Possibly hazardous short term degradation products are not likely. However, long term degradation products may    
    Toxicity of the Products        The product itself and its products of degradation are not toxic.    
    of Biodegradation
    Special Remarks on the        Not available.    
    Products of Biodegradation

Section 13. Disposal Considerations
    Waste Disposal        Waste must be disposed of in accordance with federal, state and local environmental    
    control regulations.
    Potassium sulfite

Section 14. Transport Information
    DOT Classification        Not a DOT controlled material (United States).    
    Identification        Not applicable.    
    Not applicable.
    Special Provisions for
    DOT (Pictograms)

Section 15. Other Regulatory Information and Pictograms
    TSCA 8(b) inventory: Potassium sulfite
    Federal and State
    California        California prop. 65: This product contains the following ingredients for which the State of California has found    
    to cause cancer which would require a warning under the statute: No products were found.
    Proposition 65
    California prop. 65: This product contains the following ingredients for which the State of California has found
    to cause birth defects which would require a warning under the statute: No products were found.
    Other Regulations        EINECS: This product is on the European Inventory of Existing Commercial Chemical Substances (EINECS No.    
    Canada: Listed on Canadian Domestic Substance List (DSL).
    China: Listed on National Inventory.
    Japan: Listed on National Inventory (ENCS).
    Korea: Listed on National Inventory (KECI).
    Philippines: Listed on National Inventory (PICCS).
    Australia: Listed on AICS.
    WHMIS (Canada) Not controlled under WHMIS (Canada).
    Other Classifications
    DSCL (EEC)
    This product is not classified according Not applicable.
    to the EU regulations.
    Health Hazard
    HMIS (U.S.A.)        1 National Fire Protection    
    0 Flammability
    0 Association (U.S.A.)
    Fire Hazard
    1 0 Reactivity
    Specific hazard
    Personal Protection
    WHMIS (Canada)
    DSCL (Europe)
    TDG (Canada)
    Potassium sulfite
    ADR (Europe)
    Protective Equipment
    Lab coat.
    Dust respirator. Be sure to use an
    approved/certified respirator or


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