Description
ACS reagent, ≥98%
Synonyms: APM, mono-Ammonium phosphate, prim-Ammonium phosphate, Ammonium dihydrogenphosphate
Linear Formula: NH4H2PO4
Application
Employed in the synthesis of the first example of a mixed-valence ammonium iron phosphate, NH4Fe2(PO4)2
PROPERTIES
grade
ACS reagent
Pack Size
500g
vapor pressure
<0.001 hPa ( 20 °C)
Assay
≥98%
form
crystals or chunks
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
SMILES string
N.OP(O)(O)=O
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