216003
Ammonium phosphate monobasic
ACS reagent, ≥98%
Synonym(s):
APM, mono-Ammonium phosphate, prim-Ammonium phosphate, Ammonium dihydrogenphosphate
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About This Item
Linear Formula:
NH4H2PO4
CAS Number:
Molecular Weight:
115.03
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352300
EC Number:
231-764-5
MDL number:
Assay:
≥98%
Grade:
ACS reagent
Form:
crystals or chunks
grade
ACS reagent
Quality Segment
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
InChI
1S/H3N.H3O4P/c;1-5(2,3)4/h1H3;(H3,1,2,3,4)
InChI key
LFVGISIMTYGQHF-UHFFFAOYSA-N
Application
Employed in the synthesis of the first example of a mixed-valence ammonium iron phosphate, NH4Fe2(PO4)2.
Other Notes
Legal Information
Redi-Dri is a trademark of Sigma-Aldrich Co. LLC
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Storage Class
13 - Non Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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