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    • Sodium thiosulfate

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    Catalog Number
    ACM7772987
    CAS Number
    7772-98-7
    Product Name
    Sodium thiosulfate
    Structure
    Category
    Electrolytes
    Synonyms
    Sodium subsulfite
    Description
    DryPowder; DryPowder, Liquid; DryPowder, PelletsLargeCrystals; GasVapor; Liquid; OtherSolid; PelletsLargeCrystals;COLOURLESS CRYSTALS.
    IUPAC Name
    Disodium;dioxido-oxo-sulfanylidene-λ6-sulfane
    Molecular Weight
    158.11
    Molecular Formula
    Na2O3S2;Na2S2O3;Na2O3S2
    Canonical SMILES
    [O-]S(=O)(=S)[O-].[Na+].[Na+]
    InChI
    InChI=1S/2Na.H₂O3S2/c;1-5(2,3)4/h;(H2,1,2,3,4)/q2*+1;/p-2
    InChI Key
    AKHNMLFCWUSKQB-UHFFFAOYSA-L
    Boiling Point
    100 °C
    Melting Point
    48 °C
    Purity
    99%+
    Density
    1.01 g/mL at 25 °C (lit.)
    Solubility
    Practically insoluble in alcohol
    Appearance
    White solid
    Storage
    Store at +5 °C to +30 °C
    Color/Form
    POWDER;COLORLESS MONOCLINIC CRYSTALS
    Complexity
    82.6
    Covalently-Bonded Unit Count
    3
    EC Number
    231-867-5
    Exact Mass
    157.90842477
    Formal Charge
    0
    Heavy Atom Count
    7
    ICSC Number
    1138
    Log P
    -4.35 (calculated)
    MeSH Entry Terms
    pentahydrate of sodium thiosulfate;sodium thiosulfate;sodium thiosulfate (USAN);sodium thiosulfate anhydrous;sodium thiosulfate pentahydrate;thiosulfuric acid, disodium salt
    Monoisotopic Mass
    157.90842477
    Refractive Index
    INDEX OF REFRACTION: 1.489 ALPHA, 1.508 BETA, 1.536 GAMMA; OPTIC SIGN +
    Rotatable Bond Count
    0
    RTECS Number
    XN6476000
    Topological Polar Surface Area
    104 Ų
    UNII
    L0IYT1O31N
    Vapor Pressure
    Vapor pressure at 20 °C: negligible
    MSDS
    Download MSDS
    COA
    Download COA
    Spec Sheet
    Download Spec Sheet
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