grade

ACS reagent

Quality Level

200

Assay

≥98%

form

crystals or chunks
powder

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 (SO₄^2-): ≤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