Sodium phosphate dibasic, 1KG

SKU:
04276-1KG
  • $210.00

    • Description

    Sodium phosphate dibasic, 1KG

    puriss., meets analytical specification of Ph. Eur., BP, USP, FCC, E 339, anhydrous, 98-100.5% (calc. to the dried substance)

    Synonym(s):
    Sodium hydrogenphosphate, Disodium phosphate, Disodium hydrogen phosphate, sec-Sodium phosphate
    Linear Formula:
    Na2HPO4
    CAS Number:
    7558-79-4
    Molecular Weight:
    141.96
    EC Number:
    231-448-7
    MDL number:
    MFCD00003496
    eCl@ss:
    38070211
    PubChem Substance ID:
    329747909
    NACRES:
    NA.25

    PROPERTIES

    Quality Level

    200

    Agency

    meets analytical specifications of BP
    meets analytical specifications of Ph. Eur.
    meets analytical specifications of USP

    grade

    puriss.

    assay

    98-100.5% (calc. to the dried substance)

    form

    powder

    quality

    meets analytical specification of Ph. Eur., BP, USP, FCC, E 339

    impurities

    reducing matter, complies
    residual solvents, complies
    ≤0.001% heavy metals (as Pb)
    ≤0.002% ammonium (NH4)
    ≤0.2% water-insoluble matter
    ≤1% NaH2PO4 (calc. to dried subst.)
    ≤2.0% pyrophosphate (as Na4P2O7)

    loss

    ≤1% loss on drying, 105°C, 4h
    ≤1% loss on drying, 130 °C

    pH

    8.4-9.6 (20 °C, 1%)

    pKa (25 °C)

    (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)

    solubility

    H2O: soluble 8 parts
    H2O: very soluble (Hot)
    alcohol: insoluble

    anion traces

    chloride (Cl-): ≤50 mg/kg
    fluoride (F-): ≤10 mg/kg
    sulfate (SO42-): ≤200 mg/kg

    cation traces

    As: ≤2 mg/kg
    Cd: ≤1 mg/kg
    Cu: ≤10 mg/kg
    Fe: ≤20 mg/kg
    Hg: ≤1 mg/kg
    Pb: ≤4 mg/kg
    Zn: ≤10 mg/kg

    suitability

    complies for appearance of solution

    SMILES string

    [Na+].[Na+].[H]OP([O-])([O-])=O

    InChI

    1S/2Na.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2

    InChI key

    BNIILDVGGAEEIG-UHFFFAOYSA-L

    DESCRIPTION

    Application

    Sodium phosphate dibasic has been used for preparing phosphate buffer which in turn is utilized in X-gal staining.

    Biochem/physiol Actions

    Sodium phosphate dibasic is an important component of running buffer of denaturing gel electrophoresis. It induces glomerular calcification as well as other nephrotic syndrome in Sprague-Dawley rats.

    SAFETY INFORMATION

    Storage Class Code

    13 - Non Combustible Solids

    WGK

    WGK 1

    Flash Point(F)

    Not applicable

    Flash Point(C)

    Not applicable