磷酸钠 二元 七水合物

InChI key

PYLIXCKOHOHGKQ-UHFFFAOYSA-L

InChI

1S/2Na.H3O4P.7H2O/c;;1-5(2,3)4;;;;;;;/h;;(H3,1,2,3,4);7*1H2/q2*+1;;;;;;;;/p-2

SMILES string

O.O.O.O.O.O.O.[Na+].[Na+].OP([O-])([O-])=O

grade

ACS reagent

vapor density

4.9 (vs air)

assay

≥98%, 98.0-102.0%

impurities

≤0.005% insolubles

pH

8.7-9.3

density

1.68 g/mL at 25 °C (lit.)

anion traces

chloride (Cl^-): ≤0.001%, sulfate (SO₄^2-): ≤0.005%

cation traces

Fe: ≤0.001%, heavy metals: ≤0.001%