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Potassium Silicate, Anhydrous
CAS No.: 1312-76-1
Formula: K4O4Si
Exact Mass: 247.81100
Molecular Weight: 248.47600
PSA: 92.24000
LogP: -0.85600
Reference Price: $30/kg Inquiry Now
Potassium Silicate, Anhydrous 1312-76-1 MSDS

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

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. Get medical attention.
    Skin Contact        In case of contact, immediately flush skin with plenty of water. Cover the irritated skin with an emollient.    
    Remove contaminated clothing and shoes. Wash clothing before reuse. Thoroughly clean shoes before
    reuse. Get medical attention.
    Serious Skin Contact        Wash with a disinfectant soap and cover the contaminated skin with an anti-bacterial cream. Seek medical    
    Inhalation        If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.    
    Get medical attention if symptoms appear.
    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.
    Not applicable.
    Flash Points
    Flammable Limits        Not applicable.    
    Products of Combustion        Not available.    
    Fire Hazards in Presence of Not applicable.
    Various Substances
    Risks of explosion of the product in presence of mechanical impact: Not available.
    Explosion Hazards in
    Risks of explosion of the product in presence of static discharge: Not available.
    Presence of Various
    Fire Fighting Media        Not applicable.    
    and Instructions
    Special Remarks on        Not available.    
    Fire Hazards
    Special Remarks on Explosion Heating a mixture of powdered magnesium and silica causes a violent explosion.
    Hazards        (Quartz)    

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. Be careful that the
    product is not present at a concentration level above TLV. Check TLV on the MSDS and with local
    Potassium Silicate

Section 7. Handling and Storage
    Precautions        Do not breathe dust. Wear suitable protective clothing. In case of insufficient ventilation, wear suitable    
    respiratory equipment. If you feel unwell, seek medical attention and show the label when possible. Avoid
    contact with skin and eyes. Keep away from incompatibles such as oxidizing agents.
    Keep container tightly closed. Keep container in a cool, well-ventilated area.

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        Splash goggles. Lab coat. Dust respirator. Be sure to use an approved/certified respirator or equivalent.    
    Personal Protection in Case of Splash goggles. Full suit. Dust respirator. Boots. Gloves. A self contained breathing apparatus should be
    a Large Spill        used to avoid inhalation of the product. Suggested protective clothing might not be sufficient; consult a    
    specialist BEFORE handling this product.
    Exposure Limits        Quartz    
    TWA: 0.1 (mg/m3) from ACGIH (TLV) [United States] Inhalation Respirable.
    TWA: 0.1 (mg/m3) from OSHA (PEL) [United States] Inhalation Respirable.
    TWA: 0.3 (mg/m3) from OSHA (PEL) [United States] Inhalation Total.
    TWA: 0.05 (mg/m3) from NIOSH [United States] Inhalation Respirable.
    TWA: 0.1 (mg/m3) [Canada] Inhalation Respirable.
    TWA: 0.3 [Canada] Inhalation Total.
    TWA: 0.3 [United Kingdom (UK)] Inhalation Total.
    Consult local authorities for acceptable exposure limits.

Section 9. Physical and Chemical Properties
    Physical state and appearance Solid. (Powdered solid.)        Odor        Not available.    
    Taste        Not available.    
    248.44 g/mole
    Molecular Weight
    Color        White.    
    pH (1% soln/water)        Not applicable.    
    Not available.
    Boiling Point
    Melting Point        Not available.    
    Not available.
    Critical Temperature
    Specific Gravity        Not available.    
    Vapor Pressure        Not applicable.    
    Vapor Density        Not available.    
    Volatility        Not available.    
    Not available.
    Odor Threshold
    Water/Oil Dist. Coeff.        Not available    
    Not available.
    Ionicity (in Water)
    Dispersion Properties        Not available    
    Solubility        Usually very slowly soluble in cold water. Considered almost insoluble in water.    
    Insoluble in alcohol.
    Potassium Silicate

Section 10. Stability and Reactivity Data
    The product is stable.
    Instability Temperature        Not available.    
    Incompatible materials.
    Conditions of Instability
    Incompatibility with various Reactive with oxidizing agents, acids.
    Not available.
    Special Remarks on        Incompatiblity with powferfull oxidizers: fluorine, chlorine trifluoride, manganese trioxide, oxygen diflluoride,    
    Reactivity        hydrogen peroxide, etc.; Incompatible with acetylene and ammonia. This chemical is attacked by Hydrogen    
    Fluoride. Silica will dissolve in Hydrofluoric Acid and produce the corrosive gas Silicon Tetrafluoride (SiF4).
    May be attacked by strong alkalis, especially when hot. (Quartz)
    Special Remarks on        Not available.    
    Polymerization        Will not occur.    

Section 11. Toxicological Information
    Routes of Entry        Inhalation. Ingestion.    
    Toxicity to Animals        LD50: Not available.    
    LC50: Not available.
    Chronic Effects on Humans CARCINOGENIC EFFECTS: Classified 1 (Proven for human.) by IARC, 1 (Clear evidence.) by NTP, +
    (Proven.) by NIOSH [Quartz]. Classified A2 (Suspected for human.) by ACGIH [Quartz].
    Other Toxic Effects on        Hazardous in case of skin contact (irritant), of ingestion, .    
    Slightly hazardous in case of inhalation (lung irritant).
    Special Remarks on        Lowest Published Lethal Dose/Conc:    
    Toxicity to Animals        LCL [Human] - Route: Inhalation; Dose: 300 ug/m3/10Y intermittent (Quartz)    
    Special Remarks on        May cause cancer. (Quartz)    
    Chronic Effects on Humans
    Special Remarks on other        Acute Potential Health Effects:    
    Toxic Effects on Humans        Skin: Causes skin irritation.    
    Eyes: Causes eye irritation. May cause eye injury or damage.
    Inhalation: Causes respiratory tract irritation.
    This product contains quartz (crystalline silica). Acute pneumoconiosis from overwhelming exposure to
    silica dust has occurred. Coughing and irritation of throat are early symptoms.
    Inhalation of quartz (crystalline silica) is classified as a human carcinogen. Risk of cancer depends upon
    duration and level of exposure. May also affect liver.
    Chronic exposure to quartz (crystalline silica) can also cause silicosis, a form of lung scaring that can cause
    shortness of breath, reduced lung function. May also affect blood.
    Ingestion: May be harmful if swallowed. Can cause digestive/gastrointestinal tract irritation.

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 arise.
    Toxicity of the Products        The product itself and its products of degradation are not toxic.    
    of Biodegradation
    Not available.
    Special Remarks on the
    Products of Biodegradation
    Potassium Silicate

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

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

Section 15. Other Regulatory Information and Pictograms
    California prop. 65: This product contains the following ingredients for which the State of California has
    Federal and State
    found to cause cancer, birth defects or other reproductive harm, which would require a warning under the
    statute: Quartz (crystalline silica)
    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: Quartz (crystalline silica)
    TSCA 8(b) inventory: Potassium Silicate; Quartz (crystalline silica)
    California        California prop. 65: This product contains the following ingredients for which the State of California has    
    Proposition 65        found to cause cancer which would require a warning under the statute: Quartz (crystalline silica)    
    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        OSHA: Hazardous by definition of Hazard Communication Standard (29 CFR 1910.1200).    
    For CAS no. 1312-76-1:
    EINECS: This product is on the European Inventory of Existing Commercial Chemical Substances (EINECS
    No. 215-199-1).
    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) CLASS D-2B: Material causing other toxic effects (TOXIC).
    Other Classifications
    DSCL (EEC)        R36/37/38- Irritating to eyes,        S26- In case of contact with eyes, rinse    
    respiratory system and skin.        immediately with plenty of water and seek    
    medical advice.
    S37- Wear suitable gloves.
    Health Hazard
    HMIS (U.S.A.)        2 National Fire Protection    
    0 Flammability
    0 Association (U.S.A.)
    Fire Hazard
    2 0 Reactivity
    Specific hazard
    Personal Protection
    WHMIS (Canada)
    Potassium Silicate
    DSCL (Europe)
    TDG (Canada)
    ADR (Europe)
    Protective Equipment
    Lab coat.
    Dust respirator. Be sure to use an
    approved/certified respirator or
    equivalent. Wear appropriate respirator
    when ventilation is inadequate.


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