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216003 Sigma-Aldrich

Ammonium phosphate monobasic

ACS reagent, ≥98%

Synonym: mono-Ammonium phosphate, prim-Ammonium phosphate, Ammonium dihydrogenphosphate


Related Categories Ammonium, Ammonium Salts, Chemical Synthesis, Essential Chemicals, Inorganic Salts,
grade   ACS reagent
assay   ≥98%
impurities   ≤0.005% NH4OH pptd.
  ≤0.005% insolubles
pH   3.8-4.4 (25 °C, 5%)
mp   190 °C (dec.)(lit.)
anion traces   chloride (Cl-): ≤5 ppm
  nitrate (NO3-): ≤0.001%
  sulfate (SO42-): ≤0.01%
cation traces   Ca: 0.001%
  Fe: ≤0.001%
  K: ≤0.005%
  Mg: 0.005%
  Na: ≤0.005%
  heavy metals (as Pb): ≤5 ppm



100, 500 g in poly bottle

2.5 kg in poly bottle


Employed in the synthesis of the first example of a mixed-valence ammonium iron phosphate, NH4Fe2(PO4)2.1

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