磷酸钠 二元 十二水合物

Na₂HPO₄ · 12H₂O

358.14

MFCD00149181

231-448-7

Replaces: SX0718; SX0718-1

Assay (alkalimetric): 99.0 - 102.0 %
Identity: passes test
Appearance of solution: passes test
Sodium Dihydrogene phospate: ≤ 2.5 %
pH-value (5 %; water): 9.0 - 9.3
Chloride (Cl): ≤ 0.0005 %
Sulfate (SO₄): ≤ 0.005 %
Total nitrogen (N): ≤ 0.001 %
Heavy metals (as Pb): ≤ 0.0005 %
As (Arsenic): ≤ 0.00005 %
Cu (Copper): ≤ 0.0002 %
Fe (Iron): ≤ 0.0005 %
K (Potassium): ≤ 0.005 %
Pb (Lead): ≤ 0.0005 %
Reducing substances: passes test
Water: 57.0 - 61.0 %
Corresponds to ISO,Reag. Ph Eur

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

reag. ISO
reag. Ph. Eur.

300

99.0-102.0% (alkalimetric)

solid

>2000 mg/kg LD₅₀, oral (Rat)

9.0-9.3 (20 ℃, 50 g/L in H₂O)

218 g/L

1.52 g/cm³ at 20 ℃

800‑900 kg/m³

chloride (Cl^-): ≤0.0005%
sulfate (SO₄^2-): ≤0.005%

As: ≤ 0.00005%
Cu: ≤ 0.0002%
Fe: ≤ 0.0005%
K: ≤ 0.005%
N: ≤ 0.001%
Pb: ≤ 0.0005%
heavy metals (as Pb): ≤ 0.0005%

15-25℃

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

1S/2Na.H3O4P.12H2O/c;;1-5(2,3)4;;;;;;;;;;;;/h;;(H3,1,2,3,4);12*1H2/q2*+1;;;;;;;;;;;;;/p-2

DGLRDKLJZLEJCY-UHFFFAOYSA-L

13 - Non Combustible Solids

WGK 1