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Sulfates; alums; peroxosulfates (persulfates): > Peroxosulfates (persulfates): > Other > Other
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 2833.40.60.50
Sodium Persulfate Powder
Sodium persulfate (Na2S2O8) is a white crystalline powder used as an oxidizing agent in chemical synthesis, polymer initiation, and bleaching processes. It falls under HTS 2833.40.60.50 as a peroxosulfate (persulfate) of sodium, classified as 'other' peroxosulfates not specified elsewhere in the subheading. This chemically defined inorganic compound meets Chapter 28 criteria for peroxosulfates.
Monopersulfate Triple Salt (Oxone)
2KHSO5·KHSO4·K2SO4, commercially known as Oxone, is a white powder used for oxidation in pool sanitation and organic synthesis. Despite containing regular sulfate, primary classification under HTS 2833.40.60.50 as potassium peroxosulfate (monopersulfate) 'other' due to dominant peroxoacid salt component. Chemically defined per Chapter 28 notes.
Persulfate Mixture for Polymerization
Technical grade blend of ammonium and sodium persulfates for initiating acrylic emulsion polymerization. Still classified HTS 2833.40.60.50 as 'other' peroxosulfates if chemically defined and predominant. Meets Chapter 28 purity standards when not prepared mixtures.
Barium Persulfate Fine Powder
BaS2O8 fine powder used in specialty oxidations and pyrotechnic compositions. Rare earth peroxosulfate classified under HTS 2833.40.60.50 'other' as metal peroxysalt per Chapter 28 headings 2826-2842 note. Chemically defined inorganic compound.
Ammonium Persulfate Crystals
Ammonium persulfate ((NH4)2S2O8) appears as colorless crystals widely employed as a radical initiator in emulsion polymerization and etching solutions. Classified in HTS 2833.40.60.50 as an 'other' peroxosulfate, it qualifies as a chemically defined ammonium peroxysalt per heading 2826-2842 note. Excluded from organic products per Chapter 28 structure.
Potassium Persulfate Granules
Potassium persulfate (K2S2O8) in granular form serves as a bleaching agent in cosmetics, hair dyes, and textile processing. HTS 2833.40.60.50 covers this as 'other' peroxosulfate, being a metal peroxysalt chemically defined per Chapter 28. Distinguished from general sulfates by active oxygen content.
Sodium Peroxymonosulfate Powder
Na2SO5, sodium peroxymonosulfate, functions as a selective oxidant in wastewater treatment and bleaching. HTS 2833.40.60.50 includes this 'other' peroxosulfate as a chemically defined sodium salt with peroxo functionality. Differentiated from disulfates by single S2O8 structure.
Magnesium Persulfate Solution Crystals
MgS2O8 crystalline form for analytical and bleaching applications. HTS 2833.40.60.50 'other' peroxosulfates include this magnesium salt, excluded from Section V magnesium oxide per Chapter note 3(a). Chemically defined per Chapter requirements.