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phosphonic acid
CAS No.: 13598-36-2
Formula: H3O3P
Exact Mass: 81.98200
Molecular Weight: 81.99580
PSA: 81.00000
LogP: -0.63930
Reference Price: $1,277/ton Inquiry Now
phosphonic acid 13598-36-2 MSDS

Section 1. Chemical Product and Company Identification
    Phosphorous acid
    Common Name/
    Trade Name
    Commercial Name(s)
    Chemical Name
    Chemical Family
    Phosphorous acid
    CARCINOGENIC EFFECTS: Not available.
    Potential Chronic Health
    MUTAGENIC EFFECTS: Not available.
    TERATOGENIC EFFECTS: Not available.
    The substance may be toxic to lungs.
    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.

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.
    Evacuate the victim to a safe area as soon as possible. Loosen tight clothing such as a collar, tie, belt or
    Serious Inhalation
    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.    

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        Risks of explosion of the product in presence of mechanical impact: Not available.    
    Presence of Various        Risks of explosion of the product in presence of static discharge: Not available.    
    Fire Fighting Media        Not applicable.    
    and Instructions
    Not available.
    Special Remarks on
    Fire Hazards
    Special Remarks on Explosion Not available.
    Phosphorous acid

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.    
    Stop leak if without risk. Do not get water inside container. Do not touch spilled material. Use water spray
    assistance on disposal.

Section 7. Handling and Storage
    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 oxidizing agents.
    Storage        Keep container tightly closed. Keep container in a cool, well-ventilated area. Hygroscopic    

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. Dust respirator. Be sure to use an approved/certified respirator or    
    equivalent. Gloves (impervious).
    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        Not available.    

Section 9. Physical and Chemical Properties
    Physical state and appearance Solid. (Crystals solid. Crystalline solid.)        Odor        Odorless.    
    Not available.
    82 g/mole
    Molecular Weight
    Color        White to yellowish.    
    Not available.
    pH (1% soln/water)
    Boiling Point        Decomposition temperature: 200°C (392°F)    
    Melting Point        73°C (163.4°F) - 74 C.    
    Critical Temperature        Not available.    
    Specific Gravity        1.651 (Water = 1)    
    Not applicable.
    Vapor Pressure
    Vapor Density        Not available.    
    Not available.
    Odor Threshold        Not available.    
    Water/Oil Dist. Coeff.        Not available.    
    Not available.
    Ionicity (in Water)
    Dispersion Properties        See solubility in water.    
    Soluble in cold water.
    Phosphorous acid

Section 10. Stability and Reactivity Data
    The product is stable.
    Instability Temperature        Not available.    
    Incompatible materials, water/moisture
    Conditions of Instability
    Incompatibility with various Reactive with oxidizing agents, metals, alkalis.
    Not available.
    Special Remarks on        Hygroscopic; keep container tightly closed.    
    Special Remarks on        Not available.    
    Will not occur.

Section 11. Toxicological Information
    Routes of Entry        Inhalation. Ingestion.    
    Toxicity to Animals        Acute oral toxicity (LD50): 1700 mg/kg [Mouse].    
    Chronic Effects on Humans May cause damage to the following organs: lungs.
    Other Toxic Effects on        Very hazardous in case of skin contact (irritant), of ingestion.    
    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: Corrosive. Causes severe irritation and burns.    
    Eyes: Corrosive. Causes severe irritation and burns. May cause corneal damage.
    Inhalation: Causes respiratory tract and lung irritation and possible chemical burns to the upper respiratory
    tract. Symptoms may include coughing, wheezing, and/or shortness of breath, laryngitis, inflammation,
    edema, chemical pneumonitis, headache, nausea, vomiting.
    Ingestion: Causes severe irritation and burns to the digestive/gastrointestinal tract.

Section 12. Ecological Information
    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 products of degradation are less toxic than the product itself.    
    of Biodegradation
    Special Remarks on the        Not available.    
    Products of Biodegradation
    Phosphorous acid

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: 2834 : Phosphorous acid PG: III
    Not available.
    Special Provisions for
    DOT (Pictograms)

Section 15. Other Regulatory Information and Pictograms
    New Jersey: Phosphorous acid
    Federal and State
    TSCA 8(b) inventory: Phosphorous acid
    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. 237-066-7).
    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 E: Corrosive solid.
    Other Classifications
    R22- Harmful if swallowed.        S26- In case of contact with eyes, rinse    
    DSCL (EEC)
    R35- Causes severe burns.        immediately with plenty of water and seek    
    medical advice.
    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
    Specific hazard
    Personal Protection
    WHMIS (Canada)
    Phosphorous acid
    DSCL (Europe)
    TDG (Canada)
    ADR (Europe)
    Protective Equipment
    Synthetic apron.
    Dust respirator. Be sure to use an
    approved/certified respirator or
    equivalent. Wear appropriate respirator
    when ventilation is inadequate.


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