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1.06370 Supelco

Sodium dihydrogen phosphate

anhydrous 99.99 Suprapur®

Synonym: Sodium biphosphate, Sodium dihydrogen phosphate

  • CAS Number 7558-80-7

  • Empirical Formula (Hill Notation) H2NaO4P

  • Molecular Weight 119.98

  •  MDL number MFCD00003527

  •  EC Index Number 231-449-2

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Properties

Related Categories Analytical Reagents, Analytical/Chromatography, IR Spectroscopy Solvents, Infrared (IR) Spectroscopy, Spectroscopy More...
Quality Level   100
grade   for inorganic trace analysis
assay   99.99%
potency   8290 mg/kg LD50, oral (Rat)
  >7940 mg/kg LD50, skin (Rabbit)
pH   4.5 (20 °C, 10 g/L in H2O)
solubility   850 g/L
bulk density   940 kg/m3
storage conditions   Store at +15°C to +25°C.

Description

Analysis Note

Purity (metallic): ≥ 99.99 %
Assay (acidimetric): ≥ 99.0 %
Spec. Absorbance A at 260 nm (2 cm; 10 %): ≤ 0.020
Chloride (Cl): ≤ 5 ppm
Sulfate (SO₄): ≤ 30 ppm
Total nitrogen (N): ≤ 10 ppm
As (Arsenic): ≤ 0.05 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
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): ≤ 5.0 ppm
La (Lanthanum): ≤ 0.010 ppm
Li (Lithium): ≤ 1.0 ppm
Mg (Magnesium): ≤ 0.50 ppm
Mn (Manganese): ≤ 0.010 ppm
Ni (Nickel): ≤ 0.010 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): ≤ 0.010 ppm

Legal Information

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

Safety & Documentation

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