Distillation Tarry Residues from Petrochemical Plants
Heavy tarry bottoms from fractional distillation of organic solvents and petrochemical intermediates, unfit for further use. Falls under 3825.61.00.00 as chemical industry waste mainly containing organic constituents.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If predominantly petroleum pitch/residues
Petroleum-derived pitches and residues are specifically covered in Chapter 27.
If mainly inorganic constituents
Inorganic-rich chemical wastes fall in the companion subheading.
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Import Tips & Compliance
• TSCA certification required if containing reportable chemicals above thresholds
• Segregate from petroleum oils (>70% hydrocarbons may shift to 2710)
• Lab analysis proving organic content essential for proper 3825 classification
Related Products under HTS 3825.61.00.00
Spent Activated Carbon from Chemical Processing
Used activated carbon residue from purifying organic chemicals in industrial processes, saturated with adsorbed organic contaminants. Classified under 3825.61.00.00 as other waste from chemical industries mainly containing organic constituents per chapter note 6(d).
Organic Sludge from Pharmaceutical Reaction Vessels
Contaminated sludge from cleaning pharmaceutical synthesis reactors, containing residual APIs, solvents, and organic byproducts. Classified in 3825.61.00.00 as organic-rich waste from chemical/pharma industries.
Waste Organic Solvent Mixtures from Paint Manufacturing
Mixed spent solvents (acetone, toluene, xylene) from paint thinning and cleanup operations, unfit for solvent recovery. Covered by 3825.61.00.00 per chapter note on organic solvent wastes from chemical industries.
Polymerization Mother Liquor from Resin Production
Liquid residue remaining after precipitation of synthetic resins, containing unreacted monomers, oligomers, and solvents. Qualifies as 3825.61.00.00 waste mainly containing organic constituents from chemical industries.
Spent Extraction Solvent from Herbal Processing
Used ethanol/hexane mixture from extracting active compounds from botanicals, containing waxes, chlorophyll, and residual plant organics. 3825.61.00.00 as organic chemical industry waste.
Organic Filter Cake from Antibiotic Fermentation
Wet filter cake from biomass separation in antibiotic production, containing mycelium, unconverted sugars, and organic acids. Chemical industry waste under 3825.61.00.00 due to predominant organic composition.