1.5 M Potassium sodium tartrate tetrahydrate

200 mL bottle of 1.5 M Potassium sodium tartrate tetrahydrate Optimize Reagent.
Synonyms: L(+)-Tartaric acid potassium sodium salt, or Rochelle salt, or Seignette salt
KOCOCH(OH)CH(OH)COONa 4H2O
C4H4KNaO6 4H2O
Mr 282.22
CAS Number [6381-59-5]
EC Number 206-156-8
Beilstein Registry Number 6113568
MDL Number MFCD00150989
PubChem Substance ID 24881874
Purity > 99.5%
Measured pH Range: 8.4 - 9.1 at 25 degrees Celsius
Measured Conductivity Range: 81.1 - 98.5 mS/cm at 25 degrees Celsius
Measured Refractive Index Range: 1.37544 - 1.37666 20 degrees Celsius
Al <0.0005%
As <0.00001%
Ba <0.0005%
Bi <0.0005%
Ca <0.001%
Cd <0.0005%
Cl <0.0005%
Co <0.0005%
Cr <0.0005%
Cu <0.0005%
Fe <0.0005%
Li <0.0005%
Mg <0.0005%
Mn <0.0005%
Mo <0.0005%
N <0.002%
Ni <0.0005%
Pb <0.0005%
PO4 <0.001%
SO4 <0.005%
Sr <0.0005%
Zn <0.0005%