Ammonium Persulfate Crystals from Germany
Ammonium persulfate ((NH4)2S2O8) is a white crystalline oxidizer used in polymerization and etching, under HTS 2833.29.51.90 as other peroxosulfates not elsewhere specified. Chapter notes confirm classification for ammonium peroxysalts.
Duty Rate — Germany → United States
3.7%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Classify as UN 1444 hazardous material with proper oxidizing labels
• Store below 30°C; declare temperature control if container shipment
• Provide polymerization inhibitor content if stabilized