Sodium Persulfate Crystals
Sodium persulfate (Na2S2O8) is a white crystalline powder used as an oxidizing agent in chemical reactions, polymerization processes, and bleaching applications. It falls under HTS 2833.40.60 as a peroxosulfate (persulfate) compound classified as 'other' peroxosulfates not specified elsewhere in the subheading. This chemically defined inorganic compound meets Chapter 28 criteria for peroxosulfates.
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More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If reduced to simple sulfate form
Peroxosulfates lose classification under 2833.40 if the peroxide bond is absent, falling into other sulfates.
If formulated as bleaching preparation for retail
Mixtures with additives for consumer use shift to mixtures of Chapter 38 rather than pure compounds.
If used primarily as initiator in polymer production
Specific end-use preparations may classify under hydrogen peroxide derivatives if meeting functional criteria.
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Import Tips & Compliance
• Verify purity certificate to confirm chemical definition per Chapter 28 Note 1; ensure SDS includes peroxosulfate hazards for DOT compliance; avoid misclassification as general sulfates under 2833.29
Related Products under HTS 2833.40.60
Ammonium Persulfate Powder
Ammonium persulfate ((NH4)2S2O8) is a strong oxidizing agent in granular or powder form, widely used as a radical initiator in acrylic and vinyl polymerizations. Classified under HTS 2833.40.60 as 'other' peroxosulfates per Chapter 28 notes for chemically defined persalts. It qualifies as an ammonium peroxysalt under heading provisions.
Potassium Persulfate Granules
Potassium persulfate (K2S2O8) granules serve as an etchant in microelectronics and a bleaching agent in textiles. This peroxosulfate falls under HTS 2833.40.60 as 'other' within the persulfates subheading, meeting inorganic compound definitions of Chapter 28. It's distinguished from sodium or ammonium variants by potassium base.
Monopersulfate Triple Salt
2KHSO5·KHSO4·K2SO4, a triple salt containing monopersulfate, acts as a disinfectant and oxidizer in pool chemicals and personal care. Classified in HTS 2833.40.60 as 'other' peroxosulfates, as complex peroxysalts per Chapter 28 Note 5. The active monopersulfate moiety determines heading placement.
Disodium Peroxosulfate
Disodium peroxosulfate (Na2S2O8) is utilized in hair bleaching and as a flour treatment agent. It qualifies under HTS 2833.40.60 for 'other' peroxosulfates as a chemically defined sodium peroxysalt per Chapter notes. Purity typically exceeds 99% for industrial grades.
Persulfate Laboratory Reagent Grade
ACS-grade ammonium or sodium persulfate for analytical chemistry and biochemical applications like protein electrophoresis. HTS 2833.40.60 covers this 'other' peroxosulfate as pure, chemically defined compounds. Reagent purity meets USP/ACS standards.