Spent Phosphoric Acid Pickling Liquor
Used phosphoric acid bath waste from metal surface treatment in automotive manufacturing, laden with metal phosphates and sludge. Under HTS 3825.50.00.00 as metal-pickling liquor waste per chapter note. Highly acidic and regulated as hazardous.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If regenerated and fit for re-use in pickling
Fresh phosphoric acid for pickling is under heading 2809 as diphosphoric acids.
If for other metal treatment acid wastes
Non-pickling acid wastes from chemical industries fall in 3824.99.
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Import Tips & Compliance
• Document neutralization capacity and pH levels for customs clearance
• Use stainless steel or HDPE containers resistant to phosphoric acid
Related Products under HTS 3825.50.00.00
Spent Hydraulic Fluid from Industrial Machinery
Used hydraulic oil from heavy machinery pumps and cylinders, contaminated with water, particulates, and degraded additives, unfit for further use. Falls under HTS 3825.50.00.00 as wastes of hydraulic fluids per chapter note 6(d). Typically requires recycling or disposal as hazardous waste.
Contaminated Hydraulic Fluid from Mining Equipment
Degraded hydraulic fluid from heavy mining excavators, mixed with ore dust and water, unfit for lubrication. HTS 3825.50.00.00 applies to hydraulic fluid wastes as per chapter note 6(d). High viscosity and particulate load.
Sulfuric Acid Pickling Waste from Copper Processing
Spent sulfuric acid from copper strip cleaning operations, saturated with copper sulfate crystals. Falls under HTS 3825.50.00.00 as metal-pickling liquor waste per chapter note. Valuable for copper recovery.
Biodegradable Hydraulic Fluid Waste
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Aircraft Brake Fluid Waste
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Steel Mill Spent Pickling Liquor
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