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.
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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 containing phosphogypsum impurities
Presence of phosphate byproducts may shift to phosphinates or other compounds outside pure persulfates.
If sold as catalyst preparation with stabilizers
Antioxidant-stabilized versions for industrial catalysis classify as prepared chemical additives.
If for etching solutions in PCB manufacturing
Formulations diluted for specific industrial applications become chemical preparations.
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Import Tips & Compliance
• Provide assay results (>98% purity) to distinguish from mixtures; label as oxidizer Class 5.1 for transport; check for REACH compliance if transshipping from EU
Related Products under HTS 2833.40.60
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.
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.