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215996

Sigma-Aldrich

Ammonium phosphate dibasic

ACS reagent, ≥98%

Synonym(s):
Diammonium hydrogenphosphate, di-Ammonium hydrogenphosphate (sec), Ammonium hydrogenphosphate
Linear Formula:
(NH4)2HPO4
CAS Number:
Molecular Weight:
132.06
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

Quality Level

grade

ACS reagent

assay

≥98%

form

crystalline powder
crystals or chunks

impurities

≤0.005% NH4OH pptd.
≤0.005% insolubles

pH

7.7-8.1 (25 °C, 5%)

mp

155 °C (dec.) (lit.)

anion traces

chloride (Cl-): ≤0.001%
nitrate (NO3-): ≤0.003%
sulfate (SO42-): ≤0.01%

cation traces

Ca: 0.001%
Fe: ≤0.001%
K: ≤0.005%
Mg: 0.0005%
Na: ≤0.005%
heavy metals (as Pb): ≤0.001%

SMILES string

N.N.OP(O)(O)=O

InChI

1S/2H3N.H3O4P/c;;1-5(2,3)4/h2*1H3;(H3,1,2,3,4)

InChI key

MNNHAPBLZZVQHP-UHFFFAOYSA-N

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Related Categories

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

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Certificate of Origin

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