Sodium hydrogen difluoride
CAS No.: 1333-83-1
Formula: F2HNa
Exact Mass: 61.99440
Molecular Weight: 61.99450
PSA: 0.00000
LogP: -2.46330
Sodium hydrogen difluoride 1333-83-1 MSDS

Section 1. Chemical Product and Company Identification
    Sodium bifluoride
    Common Name/
    Trade Name
    Commercial Name(s)
    Chemical Name
    Chemical Family
    Sodium bifluoride
    CARCINOGENIC EFFECTS: A4 (Not classifiable for human or animal.) by ACGIH.
    Potential Chronic Health
    Effects        MUTAGENIC EFFECTS: Not available.    
    TERATOGENIC EFFECTS: Not available.
    The substance is toxic to mucous membranes.
    The substance may be toxic to kidneys, liver, bones.
    Repeated or prolonged exposure to the substance can produce target organs damage. 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. Repeated exposure to a highly toxic material may produce general deterioration of health by an
    accumulation in one or many human organs.

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        If swallowed, do not induce vomiting unless directed to do so by medical personnel. Never give anything by    
    mouth to an unconscious person. Loosen tight clothing such as a collar, tie, belt or waistband. Get medical
    attention immediately.
    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.    
    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.
    Sodium bifluoride

Section 6. Accidental Release Measures
    Small Spill        Use appropriate tools to put the spilled solid in a convenient waste disposal container.    
    Large Spill        Corrosive solid. Poisonous solid.    
    Stop leak if without risk. Do not get water inside container. Do not touch spilled material. Use water spray to
    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.

Section 7. Handling and Storage
    Precautions        Keep container dry. Do not ingest. Do not breathe dust. Never add water to this product. 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
    organic materials, metals, acids.
    May corrode glass. Store in an appropriate container.
    Storage        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. 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.
    TWA: 2.5 (mg(F)/m3) from ACGIH (TLV) [United States]
    Exposure Limits
    TWA: 2.5 (mg((F)/m3) from OSHA (PEL) [United States]
    TWA: 2.5 (mg(F)/m3) [United Kingdom (UK)]
    Consult local authorities for acceptable exposure limits.

Section 9. Physical and Chemical Properties
    Physical state and appearance Solid. (Crystals solid. Crystalline powder.)        Pungent.    
    Taste        Saline.    
    Molecular Weight        62 g/mole    
    Color        White.    
    pH (1% soln/water)        Not available.    
    Not available.
    Boiling Point
    Melting Point        Decomposition temperature: >160°C (320°F)    
    Critical Temperature        Not available.    
    Specific Gravity        2.08 (Water = 1)    
    Vapor Pressure        Not applicable.    
    Not available.
    Vapor Density
    Volatility        Not available.    
    Not available.
    Odor Threshold
    Water/Oil Dist. Coeff.        Not available.    
    Ionicity (in Water)        Not available.    
    Dispersion Properties        See solubility in water.    
    Solubility        Soluble in cold water.    
    Soluble in water with release of heat.
    Sodium bifluoride

Section 10. Stability and Reactivity Data
    The product is stable.
    Instability Temperature        Not available.    
    Conditions of Instability        Incompatible materials, water/moisture    
    Incompatibility with various        Reactive with organic materials, metals, acids.    
    Slightly reactive to reactive with moisture.
    Corrosive in presence of glass.
    Special Remarks on        Reacts with water liberating heat and forming a corrosive solution.    
    Reactivity        May generate hydrogen gas on contact with some metals.    
    Will attack natural rubber, leather, and many organic materials.
    It will attack (etch) glass.
    Not available.
    Special Remarks on
    Polymerization        Will not occur.    

Section 11. Toxicological Information
    Routes of Entry        Skin contact. Eye contact. Inhalation. Ingestion.    
    Toxicity to Animals        Acute oral toxicity (LD50): 160 mg/kg [Rat].    
    Chronic Effects on Humans        CARCINOGENIC EFFECTS: A4 (Not classifiable for human or animal.) by ACGIH.    
    Causes damage to the following organs: mucous membranes.
    May cause damage to the following organs: kidneys, liver, bones.
    Other Toxic Effects on        Very hazardous in case of skin contact (irritant), of ingestion, inhalation.    
    Humans        Hazardous in case of skin contact (corrosive), of eye contact (corrosive).    
    Special Remarks on        Not available.    
    Toxicity to Animals
    Special Remarks on        Not available.    
    Chronic Effects on Humans
    Special Remarks on other        Acute Potential Health Effects:    
    Toxic Effects on Humans        Skin: Causes skin burns.    
    Eyes: Causes eye burns and permanent eye injury.
    Inhalation: Causes nose and throat irritation. It can irritate the lungs causing coughing and/or shortness of
    breath. HIgher exposures can cause a build-up of fluid in the lungs (pulmonary edema).
    Ingestion: Harmful if swallowed. Causes burns of the mouth, and throat as well as danger of perforation of
    the esophagus and stomach, nausea, vomiting, abdominal pain, diarrhea, loss of appetite, cough, shortness
    of breath. It may cause throat edema and suffocation, convulsions, loss of consciousness, deep coma and
    cardiopulmonary arrest. It may cause hypocalcemia with nervous disorders (tetany) and cardiac rhythm
    disorders. It may affect the bones, cardiovascular system (cardiac arrest, cardiac rhythm disorders).
    Chronic Potential Health Effects:
    Repeated high exposure may damage the liver and kidneys. It may also cause deposit of Fluorides in the
    bones and teeth, a condition called "fluorosis." This may cause pain, disability, and mottling of the teeth.

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.
    The products of degradation are more toxic.
    Toxicity of the Products
    of Biodegradation
    Special Remarks on the        Not available.    
    Products of Biodegradation
    Sodium bifluoride

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 8: Corrosive material
    UNNA: 2439 : Sodium hydrogenfluoride PG: II
    Not available.
    Special Provisions for
    DOT (Pictograms)

Section 15. Other Regulatory Information and Pictograms
    New York release reporting list: Sodium bifluoride
    Federal and State
    Pennsylvania RTK: Sodium bifluoride
    Massachusetts RTK: Sodium bifluoride
    Massachusetts spill list: Sodium bifluoride
    New Jersey: Sodium bifluoride
    New Jersey spill list: Sodium bifluoride
    Louisiana spill reporting: Sodium bifluoride
    California Director's List of Hazardous Substances: Sodium bifluoride
    TSCA 8(b) inventory: Sodium bifluoride
    CERCLA: Hazardous substances.: Sodium bifluoride: 100 lbs. (45.36 kg)
    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: No products were found.    
    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 on the European Inventory of Existing Commercial Chemical Substances (EINECS
    No. 215-608-3).
    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.
    WHMIS (Canada) CLASS E: Corrosive solid.
    Other Classifications
    DSCL (EEC)        R25- Toxic if swallowed.        S22- Do not breathe dust.    
    R34- Causes burns.        S26- In case of contact with eyes, rinse    
    immediately with plenty of water and seek
    medical advice.
    S37- Wear suitable gloves.
    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 1 Reactivity
    Specific hazard
    Personal Protection
    Sodium bifluoride
    WHMIS (Canada)
    DSCL (Europe)
    TDG (Canada)
    ADR (Europe)
    Protective Equipment
    Synthetic apron.
    Vapor and dust respirator. Be sure to
    use an approved/certified respirator or
    equivalent. Wear appropriate
    respirator when ventilation is


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