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CAS No.: 13520-83-7
Formula: H12N2O14U
Exact Mass: 502.08000
Molecular Weight: 502.12900
PSA: 227.28000
LogP: -0.05520

Section 1. Chemical Product and Company Identification
    Uranyl nitrate hexahydrate
    Common Name/
    Trade Name
    Uranyl nitrate hexahydrate

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.    

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.    
    Hazardous decompostion products include UO2, UO3, U3O8, NOx (thermal, alpha, beta, gamma radiation,
    Products of Combustion
    uranium daughters (decay).
    Fire Hazards in Presence of        of combustible materials of organic materials    
    Various Substances
    Explosion Hazards in Presence Risks of explosion of the product in presence of static discharge, sparks, open flames, heat: Not available.
    of Various Substances        Risks of explosion of the product in presence of mechanical impact: Not available.    
    Fire Fighting Media        Not applicable.    
    and Instructions
    Special Remarks on        This material is an oxidizer. It may enhance combustion of other materials.    
    Fire Hazards
    Special Remarks on Explosion Solutions of uranyl nitrate hexahydrate in ether should not be allowed to stand in sunlight as explosion may
    Hazards        occur.    

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.
    for assistance on disposal. Be careful that the product is not present at a concentration level above TLV.
    Check TLV on the MSDS and with local authorities.
    Uranyl nitrate hexahydrate

Section 7. Handling and Storage
    Precautions        Keep away from heat. Keep away from sources of ignition. Keep away from combustible material.. Do not    
    breathe dust. Take precautionary measures against electrostatic discharges. 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 reducing agents, organic materials, metals.
    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.

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
    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.
    TWA: 0.25 (mg/m3) from OSHA (PEL) [United States]
    Exposure Limits
    TWA: 0.05 (mg(U)/m3) from OSHA (PEL) [United States]
    TWA: 0.2 STEL: 0.6 (mg/m3) [United Kingdom (UK)]
    TWA: 0.2 (mg/m3) [Australia]
    TWA: 0.2 STEL: 0.6 (mg/m3) [Canada]
    Consult local authorities for acceptable exposure limits.

Section 9. Physical and Chemical Properties
    Physical state and appearance Solid. (Deliquescent crystals solid.)        Odor        Odorless.    
    Taste        Not available.    
    Molecular Weight        502.13 g/mole    
    Color        Yellow.    
    pH (1% soln/water)        Not available.    
    Decomposition temperature: 118°C (244.4°F)
    Boiling Point
    Melting Point        60.2°C (140.4°F)    
    Critical Temperature        Not available.    
    Specific Gravity        2.807 (Water = 1)    
    Vapor Pressure        Not applicable.    
    Vapor Density        Not available.    
    Volatility        Not available.    
    Not available.
    Odor Threshold
    Water/Oil Dist. Coeff.        Not available.    
    Ionicity (in Water)        Not available.    
    Dispersion Properties        See solubility in water, methanol, diethyl ether, acetone.    
    Solubility        Easily soluble in cold water, hot water, methanol, acetone.    
    Soluble in diethyl ether.
    Soluble in mineral acids, alkalies, oxalates.
    Very soluble in acetic acid.
    Solubility in water: 8 g/l of water @ 14 deg. C; 33 g/l of water @ 100 deg. C; 127 g/100 g@25 deg. C.
    Uranyl nitrate hexahydrate

Section 10. Stability and Reactivity Data
    The product is stable.
    Instability Temperature        Not available.    
    Conditions of Instability        Incompatible materials    
    Incompatibility with various        Reactive with reducing agents, combustible materials, organic materials.    
    Non-corrosive in presence of glass.
    Special Remarks on        This material is an oxidizer. It may enhance combustion of other materials.    
    Reactivity        It emits radioactive and toxic (NOx) fumes when heated to decompositon.    
    It is also incompatible with cellulose, diethyl ether (ether solutions) and organic solvents.
    When dissolved in water, a weak solution of nitric acid forms. Water solutions are acidic and can corrode
    Special Remarks on
    Corrosivity        metals.    
    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 A1 (Confirmed for human.) by ACGIH. Classified 2A (Probable for    
    human.) by IARC.
    May cause damage to the following organs: blood, kidneys, lungs, liver, bone marrow.R68-
    Other Toxic Effects on        Hazardous in case of skin contact (irritant), of ingestion, of inhalation.    
    Special Remarks on        Lowest Published Lethal Dose:    
    Toxicity to Animals        LDL [Dog] - Route: Oral; Dose: 12 mg/kg    
    LDL[Cat] - Route: Oral; Dose: 238 mg/kg
    Lethal Dose/Conc. 50% kill:
    LD50[Rat] - Route: Intraperitoneal; Dose: 135 mg/kg
    LD50[Chicken] - Route: Subcutaneous; Dose: 299 mg/kg
    Special Remarks on        May cause cancer.    
    Chronic Effects on Humans        May affect genetic material (mutagenic).    
    Special Remarks on other        It is a radioactive material (low level radioactivity)    
    Toxic Effects on Humans        Acute/Chronic Potential Health Effects:    
    Skin: Causes skin irritation and possible ulceration.
    Eyes: Causes eye irritation and possible conjunctivitis. Risk of serious injury possible.
    Inhalation: Causes irritation of the respiratory and mucous membranes. It is slightly corrosive to the
    respiratory (mucous) membranes. Symptoms may include coughing fits, sneezing, difficulty breathing,
    burning sensation, acute aterial lesions, and pulmonary edema. It is transferred from the lungs of animals
    quite slowly. A suspect carcinogen. Chronic exposure by inhalation may cause lung cancer, and kidney
    Ingestion: Causes gastrointestinal tract irritation. Symptoms may include salivation, burning sensation in the
    stomach, cramps, nausea, vomiting, weakness, dizziness, diarrhea, convulsions, flushed skin, sweating,
    syncope, tachycardia, hypotension and state of shock possible. Being radioactive, this compound is
    carcinogenic at any site of contamination on the body. Acute or chronic exposure may cause liver and kidney
    damage, and blood/bone marrow changes. Chronic exposure may also affect metabolism (weight loss).
    Addtional Data Concerning Uranyl Nitate:
    Uranium is a highly toxic element on an acute basis. The levels for soluble compounds are based on the
    chemical toxicity while the permissible body level for insoluble compounds is based on radioactivity.
    Uranyl nitrate hexahydrate

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
    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.

Section 14. Transport Information
    DOT Classification        CLASS 5.1: Oxidizing material.    
    UNNA: 1477 : Nitrate, inorganic, n.o.s (Uranyl Nitrate) PG: III
    Special Provisions for        Not available.    
    DOT (Pictograms)

Section 15. Other Regulatory Information and Pictograms
    Pennsylvania RTK: Uranyl nitrate hexahydrate
    Federal and State
    Minnesota: Uranyl nitrate hexahydrate (Listed as Uraniun soluble compounds)
    New Jersey: Uranyl nitrate hexahydrate
    California Director's List of Hazardous Substances: Uranyl nitrate hexahydrate (Listed as Uranium
    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        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.
    China: Listed on National Inventory.
    Japan: Not listed on National Inventory (ENCS).
    Korea: Not listed on National Inventory (KECI).
    Philippines: Listed on National Inventory (PICCS).
    Australia: Listed on AICS.
    The classification of this product has not been validated yet the the Service du
    Other Classifications        WHMIS (Canada)    
    repertoire toxicologique. However, it might be classified as follows: CLASS C:
    Oxidizing material.
    DSCL (EEC)        R8- Contact with combustible        S20/21- When using do not eat, drink or    
    material may cause fire.        smoke.    
    R26/28- Very toxic by inhalation and        S26- In case of contact with eyes, rinse    
    if swallowed.        immediately with plenty of water and seek    
    R33- Danger of cumulative effects.        medical advice.    
    R36/38- Irritating to eyes and skin.        S36/37- Wear suitable protective clothing and    
    R51/53- Toxic to aquatic organisms,        gloves.    
    may cause long-term adverse effects        S45- In case of accident or if you feel unwell,    
    Uranyl nitrate hexahydrate
    in the aquatic environment.        seek medical advice immediately (show the    
    label where possible).
    S61- Avoid release to the environment. Refer
    to special instructions/Safety data sheets.
    Health Hazard
    HMIS (U.S.A.)        2 National Fire Protection    
    0 Flammability
    0 Association (U.S.A.)
    Fire Hazard
    2 1 Reactivity
    Specific hazard
    Personal Protection
    WHMIS (Canada)
    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
    Splash goggles.


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