Skip to main content
Chemical Search
    < All Topics

    Sodium dichromate

    1. Molecular Structure

    Sodium dichromate 2D Structure

    2. Chemical Identity

    PropertyValue
    IUPAC Namedisodium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium
    Molecular FormulaCr2Na2O7
    SMILES[O-][Cr](=O)(=O)O[Cr](=O)(=O)[O-].[Na+].[Na+]

    3. Chemical Properties

    PropertyValue
    Molecular Weight261.97 g/mol
    TPSA124 Ų
    LogPN/A
    Formal Charge0

    4. Experimental Properties

    PropertyValue
    Boiling Point400 °C (decomposes)
    Melting Point356.7 °C
    Density2.52 g/cu cm at 13 °C
    SolubilitySolubility in water: 77.09 wt% at 40 °C; 82.04 wt% at 60 °C; 88.39 wt% at 80 °C
    Flash PointNo data available
    Autoignition TempNot flammable (USCG, 1999)

    5. Supplier Suggestions

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

    6. GHS Safety & Hazards

    Signal Word
    Danger
    GHS PictogramGHS PictogramGHS PictogramGHS PictogramGHS PictogramGHS Pictogram

    Hazard Statements

    • H272 (98.5%): May intensify fire; oxidizer [Danger Oxidizing liquids; Oxidizing solids]
    • H272: May intensify fire; oxidizer [Danger Oxidizing liquids; Oxidizing solids]
    • H300: Fatal if swallowed [Danger Acute toxicity, oral]
    • H301 (> 99.9%): Toxic if swallowed [Danger Acute toxicity, oral]
    • H301: Toxic if swallowed [Danger Acute toxicity, oral]
    • H311: Toxic in contact with skin [Danger Acute toxicity, dermal]
    • H312 (98.5%): Harmful in contact with skin [Warning Acute toxicity, dermal]
    • H312: Harmful in contact with skin [Warning Acute toxicity, dermal]
    • 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]
    • H317 (> 99.9%): May cause an allergic skin reaction [Warning Sensitization, Skin]
    • H317: May cause an allergic skin reaction [Warning Sensitization, Skin]
    • H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]
    • H330 (> 99.9%): Fatal if inhaled [Danger Acute toxicity, inhalation]
    • H330: Fatal if inhaled [Danger Acute toxicity, inhalation]
    • H332: Harmful if inhaled [Warning Acute toxicity, inhalation]
    • H334 (> 99.9%): May cause allergy or asthma symptoms or breathing difficulties if inhaled [Danger Sensitization, respiratory]
    • H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled [Danger Sensitization, respiratory]
    • H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
    • H340 (> 99.9%): May cause genetic defects [Danger Germ cell mutagenicity]
    • H340: May cause genetic defects [Danger Germ cell mutagenicity]
    • H341: Suspected of causing genetic defects [Warning Germ cell mutagenicity]
    • H350 (99.1%): May cause cancer [Danger Carcinogenicity]
    • H350: May cause cancer [Danger Carcinogenicity]
    • H360 (94%): May damage fertility or the unborn child [Danger Reproductive toxicity]
    • H360: May damage fertility or the unborn child [Danger Reproductive toxicity]
    • H360FD: May damage fertility; May damage the unborn child [Danger Reproductive toxicity]
    • H370: Causes damage to organs [Danger Specific target organ toxicity, single exposure]
    • H372 (98.5%): Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]
    • H372 **: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]
    • H372: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]
    • H400 (> 99.9%): Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]
    • H400: Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]
    • H410 (> 99.9%): Very toxic to aquatic life with long lasting effects [Warning Hazardous to the aquatic environment, long-term hazard]
    • H410: Very toxic to aquatic life with long lasting effects [Warning Hazardous to the aquatic environment, long-term hazard]

    Precautionary Statements

    • P203, P210, P220, P233, P260, P261, P264, P264+P265, P270, P271, P273, P280, P284, P301+P316, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P318, P319, P321, P330, P342+P316, P362+P364, P363, P370+P378, P391, P403, P405, and P501 (click each P-code to see the statement)
    • P203, P210, P220, P233, P260, P261, P264, P270, P271, P272, P273, P280, P284, P301+P316, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P318, P319, P320, P321, P330, P333+P317, P342+P316, P362+P364, P363, P370+P378, P391, P403, P403+P233, P405, and P501 (click each P-code to see the statement)
    • P203, P233, P260, P261, P262, P264, P264+P265, P270, P271, P272, P280, P284, P301+P316, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P308+P316, P316, P317, P318, P319, P320, P321, P330, P333+P317, P342+P316, P361+P364, P362+P364, P363, P403, P403+P233, P405, and P501 (click each P-code to see the statement)
    • P203, P280, P318, P405, and P501 (click each P-code to see the statement)
    Table of Contents
    Scroll to Top