Assay (ex Sulphated Ash)≥97.5 to ≤102.5% (as hemihydrate)
Water Content (Karl Fischer Titration)3.0-5.0% (0.38-0.65 waters of hydration)
Sulfated Ash29.94-31.48% (as hemihydrate; Theory 30.71%)
Appearance (Color)White to Cream or Pale yellow
FormCrystals or powder or crystalline powder or flakes