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Section 1. Chemical Product and Company Identification
    Sodium metasilicate pentahydrate
    Common Name/
    Trade Name
    Sodium metasilicate pentahydrate
    CARCINOGENIC EFFECTS: Not available.
    Potential Chronic Health
    Effects        MUTAGENIC EFFECTS: Not available.    
    TERATOGENIC EFFECTS: Not available.
    DEVELOPMENTAL TOXICITY: Not available.
    Repeated exposure of the eyes to a low level of dust can produce eye irritation. Repeated skin exposure can
    produce local skin destruction, or dermatitis. Repeated inhalation of dust can produce varying degree of
    respiratory irritation or lung damage.

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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 immediately.
    Skin Contact
    In case of contact, immediately flush skin with plenty of water for at least 15 minutes while removing
    contaminated clothing and shoes. Cover the irritated skin with an emollient. Cold water may be used.Wash
    clothing before reuse. Thoroughly clean shoes before reuse. Get medical attention immediately.
    Serious Skin Contact        Wash with a disinfectant soap and cover the contaminated skin with an anti-bacterial cream. Seek immediate    
    medical attention.
    Inhalation        If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.    
    Get medical attention immediately.
    Serious Inhalation        Evacuate the victim to a safe area as soon as possible. Loosen tight clothing such as a collar, tie, belt or    
    waistband. If breathing is difficult, administer oxygen. If the victim is not breathing, perform mouth-to-mouth
    resuscitation. WARNING: It may be hazardous to the person providing aid to give mouth-to-mouth
    resuscitation when the inhaled material is toxic, infectious or corrosive. Seek immediate medical attention.
    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.    

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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.    
    Products of Combustion        Not available.    
    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.
    Hazards

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Section 6. Accidental Release Measures
    Small Spill        Use appropriate tools to put the spilled solid in a convenient waste disposal container. If necessary:    
    Neutralize the residue with a dilute solution of acetic acid.
    Large Spill        Corrosive solid.    
    Stop leak if without risk. Do not get water inside container. Do not touch spilled material. Use water spray to
    on disposal. Neutralize the residue with a dilute solution of acetic acid.
    Sodium metasilicate pentahydrate

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Section 7. Handling and Storage
    Precautions        Keep container dry. Do not ingest. Do not breathe dust. In case of insufficient ventilation, wear suitable    
    respiratory equipment. If ingested, seek medical advice immediately and show the container or the label.
    Avoid contact with skin and eyes. Keep away from incompatibles such as metals, acids.
    Storage        Keep container tightly closed. Keep container in a cool, well-ventilated area.    

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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. Synthetic apron. Vapor and dust respirator. Be sure to use an approved/certified respirator    
    or equivalent. Gloves.
    Personal Protection in Case of Splash goggles. Full suit. Vapor and dust respirator. Boots. Gloves. A self contained breathing apparatus
    a Large Spill        should be used to avoid inhalation of the product. Suggested protective clothing might not be sufficient;    
    consult a specialist BEFORE handling this product.
    Exposure Limits        Not available.    

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Section 9. Physical and Chemical Properties
    Physical state and appearance Solid.        Not available.    
    Odor
    Taste        Not available.    
    Molecular Weight        212.14 g/mole    
    Color        White. Grayish white.    
    pH (1% soln/water)        12.4 [Basic.]    
    Boiling Point        Not available.    
    Melting Point        72.2°C (162°F)    
    Critical Temperature        Not available.    
    1.75 (Water = 1)
    Specific Gravity
    Vapor Pressure        Not applicable.    
    Not available.
    Vapor Density
    Volatility        Not available.    
    Odor Threshold        Not available.    
    Water/Oil Dist. Coeff.        Not available.    
    Ionicity (in Water)        Not available.    
    See solubility in water.
    Dispersion Properties
    Solubility        Easily soluble in cold water.    

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Section 10. Stability and Reactivity Data
    Stability        The product is stable.    
    Instability Temperature        Not available.    
    Conditions of Instability        Incompatible materials    
    Incompatibility with various        Reactive with metals, acids.    
    substances
    Corrosivity        Extremely corrosive in presence of aluminum.    
    Slightly corrosive in presence of copper.
    Non-corrosive in presence of glass, of stainless steel(304), of stainless steel(316).
    Special Remarks on        Solutions of sodium metasilicate, when heated and acidified, are hydrolyzed to free sodium and silicic acid.    
    Reactivity        Corrosive to metals like zinc, tin, lead. It forms hydrogen gas on contact with metals    
    Sodium metasilicate pentahydrate
    Special Remarks on        Corrosive to metals like zinc, tin, lead.    
    Corrosivity
    Polymerization        Will not occur.    

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Section 11. Toxicological Information
    Routes of Entry        Absorbed through skin. Inhalation. Ingestion.    
    Toxicity to Animals        Acute oral toxicity (LD50): 847 mg/kg [Rat].    
    Chronic Effects on Humans Not available.
    Other Toxic Effects on        Very hazardous in case of skin contact (irritant), eye contact (irritant), of ingestion.    
    Humans        Hazardous in case of skin contact (corrosive), of eye contact (corrosive), of inhalation.    
    Special Remarks on        Not available.    
    Toxicity to Animals
    Special Remarks on        May cause adverse reproductive effects based on animal test data.    
    Chronic Effects on Humans
    Special Remarks on other        Acute Potential Health Effects:    
    Toxic Effects on Humans        Skin: Corrosive. Causes severe irritation with redness and pain, and burns.    
    Eyes: Corrosive. Causes severe irritation with redness, conjuctivitis, pain, lachrymation, and burns. Causes
    corneal damage with opacificaton. May cause blindness.
    Inhalation: Causes irritation of the respiratory tract. May cause chemicals burns to the respiratory tract.
    Ingestion: Corrosive. Harmful if swallowed. Causes nausea, vomiting, severe gastrointestinal tract irritation.
    pain in the throat, abdominal pain, drooling, difficulty swallowing, May cause ulceration and bleeding from the
    stomach and small intestine. May cause oral, esophageal or gastric burns. May cause burns of the epiglottis,
    and vocal cords, and laryngeal obstruction. May cause esophageal or gastric perforation. It may affect the
    kidneys.
    Chronic Potential Health Effects:
    Skin: Prolonged or repeated skin contact causes allergic contact dermatitis.
    Ingestion: Prolonged or repeated ingestion may lead to inflammation and ulceration of the mouth. Prolonged
    or repeated ingestion may affect the kidneys

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

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

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Section 14. Transport Information
    DOT Classification        Class 8: Corrosive material    
    Identification        UNNA: 3253 : Disodium trioxosilicate PG: III    
    Special Provisions for        Not available.    
    Transport
    Sodium metasilicate pentahydrate
    DOT (Pictograms)

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Section 15. Other Regulatory Information and Pictograms
    No products were found.
    Federal and State
    Regulations
    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
    Warnings
    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).    
    EINECS: This product is not on the European Inventory of Existing Commercial Chemical Substances.
    Canada: Not listed on Canadian Domestic Substance List (DSL) or Canadian Non- Domestic Substance List
    (NDSL).
    China: Listed on National Inventory.
    Japan: Listed on National Inventory (ENCS).
    Korea: Not listed on National Inventory (KECI).
    Philippines: Listed on National Inventory (PICCS).
    Australia: Not listed on AICS.
    WHMIS (Canada) CLASS E: Corrosive solid.
    Other Classifications
    DSCL (EEC)        R34- Causes burns.        S13- Keep away from food, drink and animal    
    R37- Irritating to respiratory system.        feedingstuffs.    
    S24/25- Avoid contact with skin and eyes.
    S36/37/39- Wear suitable protective clothing,
    gloves and eye/face protection.
    S45- In case of accident or if you feel unwell,
    seek medical advice immediately (show the
    label where possible).
    Health Hazard
    HMIS (U.S.A.)        3 National Fire Protection    
    0 Flammability
    0 Association (U.S.A.)
    Fire Hazard
    3 0 Reactivity
    Health
    Reactivity
    0
    Specific hazard
    Personal Protection
    j
    WHMIS (Canada)
    (Pictograms)
    DSCL (Europe)
    (Pictograms)
    TDG (Canada)
    (Pictograms)
    ADR (Europe)
    (Pictograms)
    Protective Equipment
    Sodium metasilicate pentahydrate
    Gloves.
    Synthetic apron.
    Vapor and dust respirator. Be sure to
    use an approved/certified respirator or
    equivalent. Wear appropriate
    respirator when ventilation is
    inadequate.

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SECTION 16 - ADDITIONAL INFORMATION
N/A