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sodium hydroxide
CAS No.: 1310-73-2
Formula: HNaO
Exact Mass: 39.99250
Molecular Weight: 39.99710
PSA: 23.06000
LogP: -0.17680
Reference Price: $421/ton Inquiry Now
sodium hydroxide 1310-73-2 MSDS

SECTION 1: Identification of the substance/mixture and of the company/undertaking
  Product identifiers
    Product name        : Sodium hydroxide    
    REACH No.        : 01-2119457892-27-XXXX    
    CAS-No.        : 1310-73-2    
  Relevant identified uses of the substance or mixture and uses advised against
    Identified uses        : Laboratory chemicals, Manufacture of substances    

SECTION 2: Hazards identification
  Classification of the substance or mixture
  Classification according to Regulation (EC) No 1272/2008
    Corrosive to metals (Category 1), H290
    Skin corrosion (Category 1A), H314
    For the full text of the H-Statements mentioned in this Section, see Section 16.
  Classification according to EU Directives 67/548/EEC or 1999/45/EC
    C Corrosive        R35    
    For the full text of the R-phrases mentioned in this Section, see Section 16.
  Label elements
  Labelling according Regulation (EC) No 1272/2008
    Signal word        Danger    
    Hazard statement(s)
    H290        May be corrosive to metals.    
    H314        Causes severe skin burns and eye damage.    
    Precautionary statement(s)
    P280        Wear protective gloves/ protective clothing/ eye protection/ face    
    P305 + P351 + P338        IF IN EYES: Rinse cautiously with water for several minutes. Remove    
    contact lenses, if present and easy to do. Continue rinsing.
    P310        Immediately call a POISON CENTER or doctor/ physician.    
    Supplemental Hazard        none    
  Other hazards - none

SECTION 3: Composition/information on ingredients
    : ‘Caustic soda’
    Formula        : HNaO    
    Molecular Weight        : 40,00 g/mol    
    CAS-No.        : 1310-73-2    
    EC-No.        : 215-185-5    
    Registration number        : 01-2119457892-27-XXXX    
  Hazardous ingredients according to Regulation (EC) No 1272/2008
    Component        Classification        Concentration    
  Sodium hydroxide
    CAS-No.        1310-73-2        Met. Corr. 1; Skin Corr. 1A;        <= 100 %    
    EC-No.        215-185-5        H290, H314    
    Index-No.        011-002-00-6    
    Registration number        01-2119457892-27-XXXX    
  Hazardous ingredients according to Directive 1999/45/EC
    Component        Classification        Concentration    
  Sodium hydroxide
    CAS-No.        1310-73-2        C, R35        <= 100 %    
    EC-No.        215-185-5    
    Index-No.        011-002-00-6    
    Registration number        01-2119457892-27-XXXX    
    For the full text of the H-Statements and R-Phrases mentioned in this Section, see Section 16

SECTION 4: First aid measures
  Description of first aid measures
  General advice
    Consult a physician. Show this safety data sheet to the doctor in attendance.
  If inhaled
    If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician.
  In case of skin contact
    Take off contaminated clothing and shoes immediately. Wash off with soap and plenty of water. Consult a
  In case of eye contact
    Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician.
  If swallowed
    Do NOT induce vomiting. Never give anything by mouth to an unconscious person. Rinse mouth with
    water. Consult a physician.
  Most important symptoms and effects, both acute and delayed
    The most important known symptoms and effects are described in the labelling (see section 2.2) and/or in
    section 11
  Indication of any immediate medical attention and special treatment needed
    no data available

SECTION 5: Firefighting measures
  Extinguishing media
  Suitable extinguishing media
    Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
  Special hazards arising from the substance or mixture
    no data available
  Advice for firefighters
    Wear self contained breathing apparatus for fire fighting if necessary.
  Further information
    no data available

SECTION 6: Accidental release measures
  Personal precautions, protective equipment and emergency procedures
    Wear respiratory protection. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure
    adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust.
    For personal protection see section 8.
  Environmental precautions
    Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the
    environment must be avoided.
  Methods and materials for containment and cleaning up
    Pick up and arrange disposal without creating dust. Sweep up and shovel. Keep in suitable, closed
    containers for disposal.
  Reference to other sections
    For disposal see section 13.

SECTION 7: Handling and storage
  Precautions for safe handling
    Avoid formation of dust and aerosols.
    Provide appropriate exhaust ventilation at places where dust is formed.
    For precautions see section 2.2.
  Conditions for safe storage, including any incompatibilities
    Store in cool place. Keep container tightly closed in a dry and well-ventilated place.
  Specific end use(s)
    Apart from the uses mentioned in section 1.2 no other specific uses are stipulated

SECTION 8: Exposure controls/personal protection
  Control parameters
  Components with workplace control parameters
  Derived No Effect Level (DNEL)
    Application Area        Exposure        Health effect        Value    
    Workers        Inhalation        Long-term local effects        1 mg/m3    
    Consumers        Inhalation        Long-term local effects        1 mg/m3    
  Exposure controls
  Appropriate engineering controls
    Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and
    at the end of workday.
  Personal protective equipment
  Eye/face protection
    Face shield and safety glasses Use equipment for eye protection tested and approved under
    appropriate government standards such as NIOSH (US) or EN 166(EU).
  Skin protection
    Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique
    (without touching glove's outer surface) to avoid skin contact with this product. Dispose of
    contaminated gloves after use in accordance with applicable laws and good laboratory practices.
    Wash and dry hands.
    The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and
    the standard EN 374 derived from it.
    Full contact
    Material: Nitrile rubber
    Minimum layer thickness: 0,11 mm
    Break through time: 480 min
    Material tested:Dermatril® (KCL 740 / Z677272, Size M)
    Splash contact
    Material: Nitrile rubber
    Minimum layer thickness: 0,11 mm
    Break through time: 480 min
    Material tested:Dermatril® (KCL 740 / Z677272, Size M)
    data source: KCL GmbH, D-36124 Eichenzell, phone +49 (0)6659 87300,     test method: EN374
    If used in solution, or mixed with other substances, and under conditions which differ from EN 374,
    contact the supplier of the CE approved gloves. This recommendation is advisory only and must
    be evaluated by an industrial hygienist and safety officer familiar with the specific situation of
    anticipated use by our customers. It should not be construed as offering an approval for any
    specific use scenario.
  Body Protection
    Complete suit protecting against chemicals, The type of protective equipment must be selected
    according to the concentration and amount of the dangerous substance at the specific workplace.
  Respiratory protection
    Where risk assessment shows air-purifying respirators are appropriate use a full-face particle
    respirator type N100 (US) or type P3 (EN 143) respirator cartridges as a backup to engineering
    controls. If the respirator is the sole means of protection, use a full-face supplied air respirator. Use
    respirators and components tested and approved under appropriate government standards such
    as NIOSH (US) or CEN (EU).
  Control of environmental exposure
    Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into
    the environment must be avoided.

SECTION 9: Physical and chemical properties
  Information on basic physical and chemical properties
    a) Appearance        Form: pellets    
    Colour: white
    b) Odour        odourless    
    c) Odour Threshold        no data available    
    d) pH        14 at 50 g/l at 20 °C    
    e) Melting point/freezing        Melting point/range: 318 °C    
    f) Initial boiling point and 1.390 °C
    boiling range
    g) Flash point        not applicable    
    h) Evapouration rate        no data available    
    i) Flammability (solid, gas) no data available
    j) Upper/lower        no data available    
    flammability or
    explosive limits
    k) Vapour pressure        < 24,00 hPa at 20 °C    
    4,00 hPa at 37 °C
    l) Vapour density        1,38 - (Air = 1.0)    
    m) Relative density        2,1300 g/cm3    
    n) Water solubility        ca.1.260 g/l at 20 °C    
    o) Partition coefficient: n- no data available
    p) Auto-ignition        no data available    
    q) Decomposition        no data available    
    r) Viscosity        no data available    
    s) Explosive properties        no data available    
    t) Oxidizing properties        no data available    
  Other safety information
    Bulk density        ca.1.150 kg/m3    
    Relative vapour density 1,38 - (Air = 1.0)

SECTION 10: Stability and reactivity
    no data available
  Chemical stability
    Stable under recommended storage conditions.
  Possibility of hazardous reactions
    no data available
  Conditions to avoid
    no data available
  Incompatible materials
    Strong oxidizing agents, Strong acids, Organic materials
  Hazardous decomposition products
    Other decomposition products - no data available
    In the event of fire: see section 5

SECTION 11: Toxicological information
  Information on toxicological effects
  Acute toxicity
    no data available
  Skin corrosion/irritation
    Skin - rabbit
    Result: Causes severe burns. - 24 h
  Serious eye damage/eye irritation
    Eyes - rabbit
    Result: Corrosive - 24 h
  Respiratory or skin sensitisation
    Will not occur
  Germ cell mutagenicity
    no data available
    IARC:        No component of this product present at levels greater than or equal to 0.1% is identified as    
    probable, possible or confirmed human carcinogen by IARC.
  Reproductive toxicity
    no data available
  Specific target organ toxicity - single exposure
    no data available
  Specific target organ toxicity - repeated exposure
    no data available
  Aspiration hazard
    no data available
  Additional Information
    RTECS: WB4900000
    Material is extremely destructive to tissue of the mucous membranes and upper respiratory tract, eyes, and

SECTION 12: Ecological information
    Toxicity to fish        LC50 - Gambusia affinis (Mosquito fish) - 125 mg/l - 96 h    
    LC50 - Oncorhynchus mykiss (rainbow trout) - 45,4 mg/l - 96 h
    Toxicity to daphnia and Immobilization EC50 - Daphnia - 40,38 mg/l - 48 h
    other aquatic
  Persistence and degradability
    The methods for determining the biological degradability are not applicable to inorganic substances.
  Bioaccumulative potential
    no data available
  Mobility in soil
    no data available
  Results of PBT and vPvB assessment
    PBT/vPvB assessment not available as chemical safety assessment not required/not conducted
  Other adverse effects
    Harmful to aquatic life.

SECTION 13: Disposal considerations
  Waste treatment methods
    Offer surplus and non-recyclable solutions to a licensed disposal company. Dissolve or mix the material
    with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber.
  Contaminated packaging
    Dispose of as unused product.

SECTION 14: Transport information
  UN number
    ADR/RID: 1823        IMDG: 1823        IATA: 1823    
  UN proper shipping name
    IATA:        Sodium hydroxide, solid    
  Transport hazard class(es)
    ADR/RID: 8        IMDG: 8        IATA: 8    
  Packaging group
    ADR/RID: II        IMDG: II        IATA: II    
  Environmental hazards
    ADR/RID: no        IMDG Marine pollutant: no        IATA: no    
  Special precautions for user
    no data available



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