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Section 1. Chemical Product and Company Identification
    Thorium nitrate        Catalog    
    T1044, T1045
    Common Name/
    Number(s).
    Trade Name
    CAS#        13470-07-0; 13823-29-5    
    (anhydrous)
    Manufacturer
    Commercial Name(s)
    Synonym
    Thorium nitrate

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Section 3. Hazards Identification
    Potential Acute Health Effects Hazardous in case of skin contact (irritant), of eye contact (irritant), of ingestion, of inhalation. Prolonged
    exposure may result in skin burns and ulcerations. Over-exposure by inhalation may cause respiratory irritation.
    Potential Chronic Health        CARCINOGENIC EFFECTS: Not available.    
    Effects        MUTAGENIC EFFECTS: Not available.    
    TERATOGENIC EFFECTS: Not available.
    DEVELOPMENTAL TOXICITY: Not available.
    The substance may be toxic to kidneys, lungs, bone marrow.
    Repeated or prolonged exposure to the substance can produce target organs damage.

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Section 4. First Aid Measures
    Eye Contact        Check for and remove any contact lenses. Flush with plenty of water for at least 15 minutes, occasionally lifting    
    the upper and lower eyelids. Cold water may be used. Get medical attention. Seek medical attention in case of
    eye contact with a radioactive material.
    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. Cold water may be used.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    
    attention in case of skin contact with a radioactive material.
    Inhalation        If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get    
    medical attention.
    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. If breathing is difficult, administer oxygen. If the victim is not breathing, perform mouth-to-mouth
    resuscitation. Seek medical attention in case of inhalation of a radioactive material.
    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.    
    Not available.
    Products of Combustion
    Fire Hazards in Presence of organic materials. combustible materials.
    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.    
    Slightly explosive in presence of combustible materials, of organic materials.
    Fire Fighting Media        OXIDIZING MATERIAL. Use DRY chemicals, CO2, water spray or foam.    
    and Instructions
    Special Remarks on        Oxidizing agent; may ignite oxidizable materials. Contact with combustible or organic materials may cause fire. It    
    Fire Hazards        increases the flammability of any combustible substance.    
    Special Remarks on Explosion In contact with easily oxidizable substances, it may react rapidly enough to cause violent combustion or explosion.
    Hazards
    Thorium nitrate

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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.    
    Large Spill
    Radioactive material. Oxidizing material.
    Stop leak if without risk. Do not attempt recovery actions unless for rescue purposes. Do not touch damaged
    container or spilled material. Do not clean-up or dispose except under supervision of a specialist. Avoid contact
    with a combustible material (wood, paper, oil, clothing...). Keep substance damp using water spray. Do not touch
    disposal.

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Section 7. Handling and Storage
    Precautions        Keep away from heat. Keep away from sources of ignition. Keep away from combustible material.. Do not    
    ingest. Do not breathe dust. Wear suitable protective clothing. 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 combustible materials, organic materials.
    Storage        Keep container tightly closed. Keep container in a cool, well-ventilated area. Separate from acids, alkalies,    
    reducing agents and combustibles. See NFPA 43A, Code for the Storage of Liquid and Solid Oxidizers.

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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. Lab coat. Dust respirator. Be sure to use an approved/certified respirator or equivalent.    
    Gloves. Suggested protective clothing might not be sufficient; consult a specialist BEFORE handling this product.
    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.    

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Section 9. Physical and Chemical Properties
    Physical state and appearance Solid. (Deliquescent solid.)        Odor        Odorless.    
    Taste        Not available.    
    552.12 g/mole
    Molecular Weight
    Color        White.    
    pH (1% soln/water)        Not available.    
    Not available.
    Boiling Point
    Melting Point        Decomposition temperature: 500°C (932°F)    
    Not available.
    Critical Temperature
    Specific Gravity        Not available.    
    Vapor Pressure        Not applicable.    
    Vapor Density        Not available.    
    Volatility        Not available.    
    Odor Threshold        Not available.    
    Water/Oil Dist. Coeff.        Not available.    
    Not available.
    Ionicity (in Water)
    Dispersion Properties        See solubility in water.    
    Solubility        Easily soluble in cold water.    
    Very soluble in alcohol (ethanol), acids.
    Thorium nitrate

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Section 10. Stability and Reactivity Data
    The product is stable.
    Stability
    Instability Temperature        Not available.    
    Incompatible materials
    Conditions of Instability
    Highly reactive with combustible materials, organic materials.
    Incompatibility with various
    Reactive with reducing agents, acids.
    substances
    Corrosivity        Non-corrosive in presence of glass.    
    Special Remarks on        Also incompatible with finely powdered metals.    
    Reactivity
    Special Remarks on        Not available.    
    Corrosivity
    Polymerization        Will not occur.    

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Section 11. Toxicological Information
    Routes of Entry        Inhalation. Ingestion.    
    Toxicity to Animals        For Thorium Nitrate Anhydrous, (CAS number 13823-29-5):    
    Acute oral toxicity (LD50): 1760 mg/kg [Mouse].
    Chronic Effects on Humans May cause damage to the following organs: kidneys, lungs, bone marrow.
    Other Toxic Effects on        Hazardous in case of skin contact (irritant), of ingestion, of inhalation.    
    Humans
    Special Remarks on        Not available.    
    Toxicity to Animals
    Special Remarks on        May cause adverse reproductive effects. Thorium reproductive effects, if they occur, are likely to be mediated by    
    Chronic Effects on Humans        ionizing radiation.    
    Thorium is a suspected carcinogen. Thorium Nitrate emits radiation which could cause cancer, but no evidence
    of cancer has yet been found.
    May affect genetic material (mutagenic)
    Special Remarks on other        Acute Potential Health Effects:    
    Toxic Effects on Humans        Skin: Causes skin irritation with a rash, or burning feeling on contact.    
    Eyes: Causes eye irritation.
    Inhalation: It can irritate the respiratory tract (nose, throat).
    Ingestion: May be harmful if swallowed. It may cause nausea, vomiting, dizziness, abdominal cramps, ulceration
    or bleeding from the small intestine, bloody diarrhea, weakness, convulsions, general depression, headache,
    mental impairment.
    Chronic Potential Health Effects:
    Skin: May cause dermatitis.
    Ingestion and Inhalation: Repeated or prolonged exposure may affect the liver, kidneys, lungs, bone marrow. It
    may reduce the ability of the bone marrow to make blood cells. Prolonged or repeated inhalation may cause
    scarring of the lungs.
    Note: Thorium can accumulate in the bones, lungs and lymph system. Thorium that is absorbed into the body
    can remain for long periods of time and increase the risk of radiation induced cancer in tissues where it is
    retained.
    Thorium nitrate

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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.
    The products of degradation are less toxic than the product itself.
    Toxicity of the Products
    of Biodegradation
    Special Remarks on the        Not available.    
    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 5.1: Oxidizing material.    
    UNNA: 1477 : Nitrate, inorganic, n.o.s (Thorium Nitrate) PG: III
    Identification
    Not available.
    Special Provisions for
    Transport
    DOT (Pictograms)
    OXIDIZER
    5.1

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Section 15. Other Regulatory Information and Pictograms
    California prop. 65: This product contains the following ingredients for which the State of California has found to
    Federal and State
    cause cancer, birth defects or other reproductive harm, which would require a warning under the statute: Thorium
    Regulations
    nitrate (listed as Radionuclides)
    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: Thorium nitrate (Listed as Radionuclides)
    Connecticut hazardous material survey.: Thorium nitrate (CAS no. 13823-29-5)
    Rhode Island RTK hazardous substances: Thorium nitrate (CAS no. 13823-29-5)
    Pennsylvania RTK: Thorium nitrate (CAS no. 13823-29-5)
    Massachusetts RTK: Thorium nitrate (CAS no. 13823-29-5)
    New Jersey: Thorium nitrate (CAS no. 13823-29-5)
    CAS no. 13470-07-0 is not TCSA listed because it is a hydrate. CAS no. 13823-29-5 is TSCA listed.
    California        California prop. 65: This product contains the following ingredients for which the State of California has found    
    Proposition 65        to cause cancer which would require a warning under the statute: Thorium nitrate (listed as Radionuclides)    
    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).    
    For CAS number 13470-07-0:
    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: Not listed on National Inventory.
    Japan: Not listed on National Inventory (ENCS).
    Korea: Not listed on National Inventory (KECI).
    Philippines: Not listed on National Inventory (PICCS).
    Australia: Not listed on AICS.
    Thorium nitrate
    For CAS number 13823-29-5:
    EINECS: This product is on the European Inventory of Existing Commercial Chemical Substances. (EINECS No.
    237-514-1).
    Canada: Listed on Canadian Domestic Substance List (DSL).
    China: Listed on National Inventory.
    Japan: Not listed on National Inventory (ENCS).
    Korea: Listed on National Inventory (KECI).
    Philippines: Listed on National Inventory (PICCS).
    Australia: Listed on AICS.
    CLASS C: Oxidizing material.
    Other Classifications        WHMIS (Canada)    
    CLASS D-2A: Material causing other toxic effects (VERY TOXIC).
    DSCL (EEC)        R8- Contact with combustible material        S17- Keep away from combustible material.    
    may cause fire.        S36/37- Wear suitable protective clothing and    
    R36/38- Irritating to eyes and skin.        gloves.    
    R45- May cause cancer.        S46- If swallowed, seek medical advice    
    immediately and show this container or label.
    Health Hazard
    HMIS (U.S.A.)        2 National Fire Protection    
    0 Flammability
    0 Association (U.S.A.)
    Fire Hazard
    2 0 Reactivity
    Health
    Reactivity
    0
    Specific hazard
    Personal Protection
    x
    WHMIS (Canada)
    (Pictograms)
    DSCL (Europe)
    (Pictograms)
    TDG (Canada)
    (Pictograms)
    5.1
    ADR (Europe)
    (Pictograms)
    Protective Equipment
    Gloves.
    Lab coat.
    Dust respirator. Be sure to use an
    approved/certified respirator or
    equivalent. Wear appropriate respirator
    when ventilation is inadequate.
    Splash goggles.

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SECTION 16 - ADDITIONAL INFORMATION
N/A