焦磷酸钠十水合物，Sodium pyrophosphate tetrabasic decahydrate；for analysis EMSURE® ACS,Reag. Ph Eur, 99.0-103.0% (acidimetric)

等级

ACS reagent

质量水平

300

Agency

reag. Ph. Eur.

产品线

EMSURE^®

检测方案

99.0-103.0% (acidimetric)

形式

solid

杂质

≤0.001% Total nitrogen (N)
≤0.01% Insoluble matter

pH值（酸碱度）

9.5-10.5 (20 °C, 50 g/L in H₂O)

mp

988 °C (anhydrous substance)

密度

1.82 g/cm³ at 20 °C

堆积密度

650 kg/m³

痕量阴离子

chloride (Cl^-): ≤0.001%
phosphate (PO₄^3-): ≤0.1%
sulfate (SO₄^2-): ≤0.005%

痕量阳离子

Fe: ≤0.0005%
K: ≤0.005%
heavy metals (as Pb): ≤0.0005%

储存温度

2-30°C

InChI

1S/4Na.H4O7P2.10H2O/c;;;;1-8(2,3)7-9(4,5)6;;;;;;;;;;/h;;;;(H2,1,2,3)(H2,4,5,6);10*1H2/q4*+1;;;;;;;;;;;/p-4

InChI key

VZWGHDYJGOMEKT-UHFFFAOYSA-J