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1.01440 Supelco

Ammonium dihydrogen phosphate

99.99 Suprapur®

Synonym: Ammonium biphosphate, Ammonium phosphate monobasic, Primary ammonium phosphate, Monoammonium orthophosphate, Ammonium dihydrogen phosphate

  • CAS Number 7722-76-1

  • Linear Formula (NH4)H2PO4

  • Molecular Weight 115.03

  •  MDL number MFCD00003396

  •  EC Index Number 231-764-5

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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
vapor pressure   0.066 hPa ( 125 °C)
assay   99.99%
potency   5750 mg/kg LD50, oral (Rat)
  >7940 mg/kg LD50, skin (Rabbit)
pH   3.8-4.4 (20 °C, 50 g/L in H2O)
mp   190 °C
solubility   368 g/L
density   1.80 g/cm3 at 20 °C
bulk density   800‑1100 kg/m3
InChI   1S/H3N.H3O4P/c;1-5(2,3)4/h1H3;(H3,1,2,3,4)
InChI key   LFVGISIMTYGQHF-UHFFFAOYSA-N
storage conditions   Store at +5°C to +30°C.

Description

Analysis Note

Purity (metallic): ≥ 99.99 %
Assay (acidimetric): ≥ 99 %
Nitrate (NO₃): ≤ 5 ppm
Sulfate (SO₄): ≤ 50 ppm
As (Arsenic): ≤ 0.2 ppm
Ba (Barium): ≤ 2.0 ppm
Ca (Calcium): ≤ 0.10 ppm
Cd (Cadmium): ≤ 0.010 ppm
Ce (Cerium): ≤ 0.01 ppm
Co (Cobalt): ≤ 0.010 ppm
Cr (Chromium): ≤ 0.010 ppm
Cs (Cesium): ≤ 50 ppm
Cu (Copper): ≤ 0.010 ppm
Fe (Iron): ≤ 0.10 ppm
Hg (Mercury): ≤ 0.05 ppm
K (Potassium): ≤ 10 ppm
La (Lanthanum): ≤ 0.010 ppm
Li (Lithium): ≤ 1.0 ppm
Mg (Magnesium): ≤ 0.10 ppm
Mn (Manganese): ≤ 0.010 ppm
Na (Sodium): ≤ 10 ppm
Ni (Nickel): ≤ 0.010 ppm
Pb (Lead): ≤ 0.010 ppm
Rb (Rubidium): ≤ 10 ppm
Sm (Samarium): ≤ 0.010 ppm
Sr (Strontium): ≤ 0.10 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

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