正磷酸钠十二水合物，Sodium phosphate tribasic dodecahydrate [TSP]；for analysis EMSURE®, 98.0-102.0% (alkalimetric)

质量水平

300

产品线

EMSURE^®

测定

98.0-102.0% (alkalimetric)

形式

crystals

效能

7400 mg/kg LD₅₀, oral (Rat)

杂质

≤0.001% Total nitrogen (N)
≤0.01% Insoluble matter
≤2.5% Free alkali (as NaOH)

pH值（酸碱度）

12 (20 °C, 10 g/L in H₂O)

mp

75 °C (Elimination of water of crystallisation)

溶解性

285 g/L

密度

1.62 g/cm³ at 20 °C

堆积密度

950 kg/m³

痕量阴离子

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

痕量阳离子

Fe: ≤0.001%
excess alkali (as NaOH): ≤2.5%
heavy metals (as Pb): ≤0.001%

储存温度

2-30°C

InChI

1S/3Na.H3O4P.12H2O/c;;;1-5(2,3)4;;;;;;;;;;;;/h;;;(H3,1,2,3,4);12*1H2/q3*+1;;;;;;;;;;;;;/p-3

InChI key

ASTWEMOBIXQPPV-UHFFFAOYSA-K