Specification Sheet
Product Name Potassium sodium tartrate tetrahydrate,
meets USP testing specifications
Product Number P2347
Product Brand SIGMA
CAS Number 6381-59-5
Molecular Weight 282.22
 
TEST SPECIFICATION
Identity Pass
Acidity or Alkalinity Pass
Water (by Karl Fischer) 21.0 - 27.0 %
Limit Test on Free Amine (Ammonia) Pass
Heavy Metal ≤0.001 %
Assay 99.0 - 102.0 %
  Anhydrous Basis
Residual Solvent Meets Requirements
Recommended Retest Period -------------------------
  4 years