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Guanidine hydrochloride 50-01-1 MSDS

Section 1. Chemical Product and Company Identification
    Guanidine hydrochloride
    Common Name/
    Trade Name
    Commercial Name(s)
    Chemical Name
    Chemical Family
    Guanidine hydrochloride

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.
    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 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.
    Serious Inhalation        Not available.    
    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 May be combustible at high temperature.
    Auto-Ignition Temperature Not available.
    Flash Points        Not available.    
    Flammable Limits        Not available.    
    Products of Combustion        These products are carbon oxides (CO, CO2), nitrogen oxides (NO, NO2...).    
    Fire Hazards in Presence of Slightly flammable to flammable in presence of open flames and sparks, of heat.
    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        SMALL FIRE: Use DRY chemical powder.    
    LARGE FIRE: Use water spray, fog or foam. Do not use water jet.
    and Instructions
    Special Remarks on        Not available.    
    Fire Hazards
    Special Remarks on Explosion Not available.

Section 6. Accidental Release Measures
    Small Spill        Use appropriate tools to put the spilled solid in a convenient waste disposal container. Finish cleaning by    
    spreading water on the contaminated surface and dispose of according to local and regional authority
    Large Spill        Use a shovel to put the material into a convenient waste disposal container. Finish cleaning by spreading    
    water on the contaminated surface and allow to evacuate through the sanitary system.

Section 7. Handling and Storage
    Precautions        Keep away from heat. Keep away from sources of ignition. Ground all equipment containing material. Do    
    not ingest. Do not breathe dust. Wear suitable protective clothing. If ingested, seek medical advice
    immediately and show the container or the label. Avoid contact with skin and eyes.
    Storage        Keep container tightly closed. Keep container in a cool, well-ventilated area.    
    Guanidine hydrochloride

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.    
    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. (Solid crystalline powder.)        Odor        Not available.    
    Taste        Not available.    
    Molecular Weight        95.53 g/mole    
    Color        White.    
    pH (1% soln/water)        Not available.    
    Not available.
    Boiling Point
    Melting Point        184°C (363.2°F)    
    Critical Temperature        Not available.    
    Specific Gravity        1.344 (Water = 1)    
    Vapor Pressure        Not applicable.    
    Vapor Density        Not available.    
    Volatility        Not available.    
    Not available.
    Odor Threshold
    Water/Oil Dist. Coeff.        The product is more soluble in water; log(oil/water) = -1.7    
    Ionicity (in Water)        Not available.    
    Dispersion Properties        See solubility in water.    
    Solubility        Easily soluble in cold water.    
    Solubility in water" 2150 g/l at 20 deg. C.

Section 10. Stability and Reactivity Data
    Stability        The product is stable.    
    Not available.
    Instability Temperature
    Conditions of Instability        Excess heat, incompatible materials ,dust generation    
    Incompatibility with various        Reactive with oxidizing agents.    
    Corrosivity        Non-corrosive in presence of glass.    
    Not available.
    Special Remarks on
    Special Remarks on        Not available.    
    Will not occur.
    Guanidine hydrochloride

Section 11. Toxicological Information
    Routes of Entry        Inhalation. Ingestion.    
    Acute oral toxicity (LD50): 475 mg/kg [Rat].
    Acute dermal toxicity (LD50): >2000 mg/kg [Rabbit].
    Acute toxicity of the dust (LC50): 21.3 mg/l 1 hours [Rat].
    Chronic Effects on Humans Not available.
    Other Toxic Effects on        Hazardous in case of skin contact (irritant), of ingestion.    
    Humans        Slightly hazardous in case of skin contact (permeator), of inhalation.    
    Special Remarks on        Not available.    
    Toxicity to Animals
    Special Remarks on        Not available.    
    Chronic Effects on Humans
    Special Remarks on other        Potential Health Effects:    
    Toxic Effects on Humans        Skin: Causes skin irritation. Moderate skin irritation. It may be absorbed through the skin.    
    Eyes: Causes eye irritation. Severe eye irritation.
    Inhalation: May cause respiratory tract irritaiton.
    Ingestion: Harmful if swallowed. May cause salivation, abdominal cramping, anorexia, nausea, vomiting,
    hypermotility, diarrhea. May affect behavior/central nervous system(convulsions, lightheadedness, tremor,
    ataxia, confusion, hallucinations, irritability, excitement, muscle contraction or spasticity). May affect
    respiration (dyspnea). May affect the blood (bone marrow suppression, change in white and red blood cell
    count, anemia, leukopenia, thrombocytopenia). May cause hypoglycemia. May affect the liver (abnormal liver
    function tests) and kidneys (nephritis, renal tubular necrosis), cardiovascular system (palpitation, tachycardia,

Section 12. Ecological Information
    Ecotoxicity in water (LC50): 1758 mg/l 48 hours [Fish (Leuciscus idus)].
    Not available.
    BOD5 and COD
    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

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        Not a DOT controlled material (United States).    
    Not applicable.
    Special Provisions for        Not applicable.    
    DOT (Pictograms)
    Guanidine hydrochloride

Section 15. Other Regulatory Information and Pictograms
    TSCA 8(b) inventory: Guanidine hydrochloride
    Federal and State
    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. 200-002-3).
    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.
    CLASS D-1B: Material causing immediate and serious toxic effects (TOXIC).
    Other Classifications        WHMIS (Canada)    
    CLASS D-2B: Material causing other toxic effects (TOXIC).
    DSCL (EEC)        R22- Harmful if swallowed.        S22- Do not breathe dust.    
    R36/38- Irritating to eyes and skin.
    Health Hazard
    HMIS (U.S.A.)        2 National Fire Protection    
    1 Flammability
    1 Association (U.S.A.)
    Fire Hazard
    2 0 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
    Guanidine hydrochloride


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