磷酸氢二钠二水合物，Sodium phosphate dibasic dihydrate；meets analytical specification of Ph. Eur., BP, 98.5-101% (calc. to the dried substance)

Agency

meets analytical specifications of BP
meets analytical specifications of Ph. Eur.

质量水平

200

测定

98.5-101% (calc. to the dried substance)

形式

crystals

质量

meets analytical specification of Ph. Eur., BP

杂质

reducing matter, complies
residual solvents, complies
≤0.001% heavy metals (as Pb)
≤1% NaH₂PO₄ (calc. to dried subst.)

缺失

19.5-21% loss on drying, 130 °C

pH值（酸碱度）

9.0-9.4 (20 °C, 1%)

痕量阴离子

chloride (Cl^-): ≤50 mg/kg
sulfate (SO₄^2-): ≤100 mg/kg

痕量阳离子

As: ≤2 mg/kg
Fe: ≤10 mg/kg

适用性

complies for appearance of solution

SMILES string

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

InChI

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

InChI key

KDQPSPMLNJTZAL-UHFFFAOYSA-L