Sodium Acetate Trihydrate, E262, CAS no.6131-90-4, sodium salt of acetic acid, available as white to colorless crystals. Sodium Acetate Trihydrate is a common form of Sodium Acetate. With a similar function to Sodium Acetate Anhydrous, Sodium Acetate Trihydrate is also widely used as a preservative. Moreover, Sodium Acetate Trihydrate is an important intermediate in the manufacturing of Sodium Diacetate.

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Sodium Acetate Trihydrate Specification
ITEM STANDARD
Appearance Colorless crystals, slight acetic acid odor
Assay (dry basis, %) 99.0-101.0
pH (5% Solution, 25) 7.5- 9.0
Loss on Drying (120 4h, %) 36.0 41.0
Insoluble Matter (%) 0.05
Chlorides (Cl, %) 0.035
Alkalinity (as Na2CO3, %) 0.05
Phosphate (PO4) 10 mg/kg
Sulphate (SO4) 50 mg/kg
Iron (Fe) 10 mg/kg
Arsenic (As) 3 mg/kg
Lead (Pb) 5 mg/kg
Mercury (Hg) 1 mg/kg
Heavy Metal (as Pb) 10 mg/kg