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    Sulfuric acid

    1. Molecular Structure

    sulfuric acid 2D Structure

    2. Chemical Identity

    PropertyValue
    IUPAC Namesulfuric acid
    CAS Number10522-84-4
    Molecular FormulaH2O4S
    SMILESOS(=O)(=O)O

    3. Chemical Properties

    PropertyValue
    AppearanceColorless, oily liquid
    Molecular Weight98.08 g/mol
    TPSA83 Ų
    Formal Charge0

    4. Experimental Properties

    PropertyValue
    Density1.841 (EPA, 1998) – Denser than water; will sink
    SolubilityMiscible (NIOSH, 2024)
    Vapor Pressure1 mmHg at 294.8 °F (EPA, 1998)
    Vapor Density3.4 (EPA, 1998) – Heavier than air; will sink (Relative to Air)
    Melting Point10.31 °C
    Boiling Point337 °C
    Flash PointNo data available
    Autoignition TempNot flammable (USCG, 1999)
    Decomposition340 °C
    Dissociation ConstantpKa = 1.92 at 25 °C
    pH1 N solution = 0.3; 0.1 N solution = 1.2; 0.01 N solution = 2.1
    LogPNo data available
    Refractive IndexNo data available

    5. Supplier Suggestions

    SupplierWebsiteLocation
    Sigma Aldrich/MerckVisit MerckInternational
    LennoxVisit LennoxIreland
    Doc SolderVisit Doc SolderIreland

    6. GHS Safety & Hazards

    Signal Word
    Danger
    GHS PictogramGHS Pictogram

    Hazard Statements

    • H290: May be corrosive to metals [Warning Corrosive to Metals]
    • H303: May be harmful if swallowed [Warning Acute toxicity, oral]
    • H314 (> 99.9%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
    • H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
    • H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]
    • H330: Fatal if inhaled [Danger Acute toxicity, inhalation]
    • H370: Causes damage to organs [Danger Specific target organ toxicity, single exposure]
    • H372: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]
    • H402: Harmful to aquatic life [Hazardous to the aquatic environment, acute hazard]
    • H410: Very toxic to aquatic life with long lasting effects [Warning Hazardous to the aquatic environment, long-term hazard]

    Precautionary Statements

    • P234, P260, P264, P264+P265, P270, P271, P280, P284, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P308+P316, P316, P317, P319, P320, P321, P363, P390, P403+P233, P405, P406, and P501 (click each P-code to see the statement)
    • P234, P260, P264, P264+P265, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P321, P363, P390, P405, P406, and P501 (click each P-code to see the statement)
    • P260, P264, P264+P265, P270, P271, P280, P284, P301+P317, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P308+P316, P316, P317, P319, P320, P321, P363, P403+P233, P405, and P501 (click each P-code to see the statement)
    • P260, P264, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P363, P405, and P501 (click each P-code to see the statement)
    • P273, P391, and P501 (click each P-code to see the statement)
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