Ammonium Persulfate Crystals
Crystalline form of ammonium persulfate used in etching solutions for printed circuit boards and metal surface treatment. Classified under HTS 2833.40.60.20 as an ammonium peroxosulfate meeting chemical definition requirements. Provides strong oxidizing power in aqueous and non-aqueous media.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If vanadates or molybdates of ammonium
Different anionic structure places it in phosphinates/phosphates/vanadates heading 2835.
If prepared as pickling preparation for metals
Formulations for specific industrial use as metal treatments fall in Chapter 38.
If borates of ammonium rather than persulfates
Ammonium borates classified under borates heading 2840.
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Import Tips & Compliance
• Include technical data sheet proving peroxosulfate composition; comply with TSCA import certification; check for REACH compliance if transshipping from EU
Related Products under HTS 2833.40.60.20
Ammonium Persulfate Powder
Ammonium persulfate (NH4)2S2O8 is a white crystalline powder used as an oxidizing agent in polymerization reactions for producing plastics and adhesives. It falls under HTS 2833.40.60.20 as a peroxosulfate of ammonium, chemically defined per Chapter 28 notes. This industrial chemical initiates free radical reactions in aqueous systems.
Technical Grade Ammonium Persulfate
Technical grade ammonium persulfate (99% purity) for industrial bleaching of textiles and paper pulp. HTS 2833.40.60.20 covers this peroxosulfate salt of ammonium per Chapter notes. Strong oxidizer that decomposes to generate sulfate radicals.
Ammonium Persulfate Flakes
Flake form of ammonium persulfate for convenient handling in water treatment and wastewater oxidation processes. Falls under HTS 2833.40.60.20 as chemically defined ammonium peroxosulfate. Dissolves readily to provide persulfate ions for advanced oxidation.
ACS Reagent Ammonium Persulfate
ACS reagent grade ammonium persulfate (99.99% pure) for laboratory polymerization and biochemical applications. Precisely classified under HTS 2833.40.60.20 as ammonium peroxosulfate meeting analytical standards. Used in gel electrophoresis and radical initiations.
Ammonium Persulfate Prills
Prilled ammonium persulfate for mining explosives initiation and soil remediation applications. HTS 2833.40.60.20 specifically covers ammonium peroxosulfates in all physical forms. Provides controlled oxygen release for oxidation reactions.
Photo Grade Ammonium Persulfate
High purity photo grade ammonium persulfate for etching photoresists in semiconductor manufacturing. Classified HTS 2833.40.60.20 as chemically pure ammonium peroxosulfate. Critical for microelectronics fabrication processes.