Potassium sodium tartrate tetrahydrate

grade

ACS reagent

Quality Level

300

Agency

reag. ISO
reag. Ph. Eur.

product line

EMSURE^®

Assay

99.0-102.0% (alkalimetric)

form

solid

impurities

≤0.005% Insoluble matter

pH

7.0-8.5 (25 °C 50 g/L in H₂O)

mp

70-80 °C

bulk density

1000 kg/m³

anion traces

chloride (Cl^–): ≤0.0005%
phosphate (PO₄^3-): ≤0.001%
sulfate (SO₄^2-): ≤0.005%

cation traces

Ca: ≤0.004%
Cu: ≤0.0005%
Fe: ≤0.0005%
NH₄⁺: ≤0.002%
Pb: ≤0.0005%
heavy metals (as Pb): ≤0.0005%

storage temp.

2-30°C

InChI

1S/C4H6O6.K.Na.4H2O/c5-1(3(7)8)2(6)4(9)10;;;;;;/h1-2 5-6H (H 7 8)(H 9 10);;;4*1H2/q;2*+1;;;;/p-2/t1- 2-;;;;;;/m1……/s1

InChI key

VZOPRCCTKLAGPN-ZFJVMAEJSA-L