Oleum (Fuming Sulfuric Acid)
Oleum, also known as fuming sulfuric acid, is a solution of sulfur trioxide in sulfuric acid. It is explicitly named in this tariff item and is classified here as oleum, a chemically defined product used in organic synthesis and explosives manufacturing.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the sulfur trioxide content exceeds 100%
Pure sulfur trioxide is classified under inorganic acids.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Clearly label the product as oleum with the sulfur trioxide content percentage
• Ensure compliance with dangerous goods regulations for fuming acids
• Provide safety data sheets and handling instructions to CBSA for review
Related Products under Tariff item 2807.00.00
20% Dilute Sulfuric Acid
A 20% aqueous solution of sulfuric acid, a separate chemically defined compound dissolved in water. It falls under this tariff item as a solution of sulfuric acid, consistent with Chapter 28 Note 1(b) which covers such aqueous solutions.
98% Sulfuric Acid
Concentrated sulfuric acid at 98% purity, a separate chemically defined inorganic compound. It is classified here as sulfuric acid, meeting Chapter 28 Note 1(a) requirements for pure chemical compounds, and is widely used in industrial processes.
Battery Grade Sulfuric Acid
High-purity sulfuric acid (93-37%) formulated for lead-acid battery electrolyte, with strict impurity limits. It is classified here as chemically defined sulfuric acid, provided it does not contain additives that render it suitable for specific use beyond general acid applications.
Electronic Grade Sulfuric Acid
Ultra-high purity sulfuric acid (>99.999%) for semiconductor wafer cleaning and etching. It is a separate chemically defined compound, classified here as sulfuric acid, meeting Chapter 28 Note 1(a) without any doping or additives that would exclude it.
Food Grade Sulfuric Acid
Dilute sulfuric acid (10-50%) FCC grade for pH adjustment in beverages and as a stabilizer in pectin. It is classified here as a chemically defined aqueous solution of sulfuric acid, provided it meets Chapter 28 Note 1(b) without added food additives.
Pharmaceutical Grade Sulfuric Acid
Low-bioburden sulfuric acid meeting USP/EP standards for API synthesis and vitamin production. It is a chemically defined acid, pure form without Chapter 28 exclusions, and is classified here as sulfuric acid for pharmaceutical manufacturing.