Chemical Plant Scrubber Sludge
Wet scrubber solids from HCl absorption towers containing ammonium chloride crystals. Other wastes from chemical industries per note 6(d), HTS 3825.90.0100 covers process residuals not elsewhere specified.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If pure ammonium chloride crystals
Refined inorganic chemicals classified separately from waste
If ammonium salts suitable as fertilizer
Fertilizer grade ammonium compounds classified in chapter 31
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Import Tips & Compliance
• Chloride content analysis (>30%) confirms process origin
• Dewatering to <25% moisture prevents free liquid during transport
• Dust suppression wetting agent compatibility testing required
Related Products under HTS 3825.90.01.00
Used Motor Oil Waste
Spent motor oil collected from vehicle maintenance and repair shops, contaminated with metals and additives. Classified under HTS 3825.90.0100 as other wastes from chemical or allied industries per chapter note 6(d), specifically wastes from hydraulic fluids and anti-freezing fluids. Not suitable for petroleum oil classification in 2710 due to chemical contamination.
Brake Fluid Waste
Contaminated hydraulic brake fluid waste from automotive service centers containing glycol ethers and corrosion inhibitors. Falls under HTS 3825.90.0100 as wastes of hydraulic fluids per chapter note 6(d). Excluded from heading 2710 due to chemical composition beyond petroleum oils.
Clinical Waste Sharps Container
Sealed containers of used syringes, needles, and lancets from medical procedures, classified as clinical waste under chapter note 6(a). HTS 3825.90.0100 covers contaminated medical waste requiring special disposal, including pathogens and pharmaceuticals. Not municipal waste due to biomedical origin.
Waste Antifreeze Coolant
Used ethylene glycol antifreeze from fleet vehicle maintenance containing heavy metals and inhibitors. HTS 3825.90.0100 as wastes of anti-freezing fluids per chapter note 6(d). Chemical contamination excludes petroleum oil classification.
Pharmaceutical Waste Mixture
Expired or contaminated pharmaceutical residues from manufacturing clean-up containing active ingredients. Classified under HTS 3825.90.0100 as clinical/chemical industry waste per note 6(a)(d). Excludes fit-for-use products.
Metal Pickling Liquor Waste
Spent acid solutions from steel pickling containing iron salts and sulfuric acid from metal processing. HTS 3825.90.0100 covers wastes of metal pickling liquors per chapter note 6(d). Industrial chemical waste not classifiable as acids.