di-Sodium hydrogen phosphate anhydrous Suprapur (100 G)

SKU:
1065660100
  • $546.00

    • Description

    di-Sodium hydrogen phosphate anhydrous 99.99 Suprapur, 100G

    Synonym(s):
    Sodium hydrogenphosphate, Disodium phosphate, Disodium hydrogen phosphate, Sodium phosphate dibasic, sec-Sodium phosphate
    Linear Formula:
    Na2HPO4
    CAS Number:
    7558-79-4
    Molecular Weight:
    141.96
    MDL number:
    MFCD00003496
    EC Index Number:
    231-448-7

    PROPERTIES

    storage conditions

    Store at +5°C to +30°C.

    grade

    for inorganic trace analysis

    Quality Level

    100

    assay

    99.99%

    potency

    >2000 mg/kg LD50, oral (Rat)

    pH

    8.7-9.3 (20 °C, 10 g/L in H2O)

    pKa (25 °C)

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

    mp

    250 °C (decomposition)

    solubility

    77 g/L

    bulk density

    880 kg/m3

    Analysis Note

    Purity (metallic): ≥ 99.99 %
    Assay (acidimetric): ≥ 99.0 %
    Absorbance (at 260 nm; 10 %; 2 cm; water): ≤ 0.010
    Chloride (Cl): ≤ 5 ppm
    Sulfate (SOâ‚„): ≤ 30 ppm
    Total nitrogen (N): ≤ 10 ppm
    As (Arsenic): ≤ 0.1 ppm
    Ba (Barium): ≤ 10.0 ppm
    Ca (Calcium): ≤ 0.50 ppm
    Cd (Cadmium): ≤ 0.010 ppm
    Ce (Cerium): ≤ 0.010 ppm
    Co (Cobalt): ≤ 0.010 ppm
    Cr (Chromium): ≤ 0.050 ppm
    Cs (Cesium): ≤ 5 ppm
    Cu (Copper): ≤ 0.010 ppm
    Eu (Europium): ≤ 0.010 ppm
    Fe (Iron): ≤ 0.05 ppm
    Hg (Mercury): ≤ 0.05 ppm
    K (Potassium): ≤ 2.0 ppm
    La (Lanthanum): ≤ 0.010 ppm
    Li (Lithium): ≤ 1.0 ppm
    Mg (Magnesium): ≤ 0.10 ppm
    Mn (Manganese): ≤ 0.010 ppm
    Ni (Nickel): ≤ 0.050 ppm
    Pb (Lead): ≤ 0.010 ppm
    Rb (Rubidium): ≤ 5.0 ppm
    Sm (Samarium): ≤ 0.010 ppm
    Sr (Strontium): ≤ 0.50 ppm
    Tl (Thallium): ≤ 0.01 ppm
    Y (Yttrium): ≤ 0.010 ppm
    Yb (Ytterbium): ≤ 0.010 ppm
    Zn (Zinc): ≤ 0.050 ppm

    Legal Information

    SUPRAPUR is a registered trademark of Merck KGaA, Darmstadt, Germany