High-Purity Thionyl Chloride for Electronics
Ultra-high purity thionyl chloride (99.999%) used for etching and doping in semiconductor manufacturing. Despite the electronic-grade specification, it remains a chemically defined halide oxide of sulfur and is not excluded by Chapter 28 notes, so it belongs under tariff item 2812.17.00.
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 thionyl chloride is doped and cut into discs, wafers, or similar forms for electronics.
Chapter 28 Note 8 excludes such doped forms in those shapes, directing them to heading 38.18.
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
• Confirm that the product is not doped for electronics in a form covered by heading 38.18 (e.g
• discs or wafers)
• Provide end-use documentation to CBSA if requested to support the classification
Related Products under Tariff item 2812.17.00
Bulk Thionyl Chloride for Agrochemical Production
Bulk thionyl chloride (SOCl2) supplied in tankers or IBCs for agrochemical production. It is a chemically defined halide oxide of sulfur, specifically named in tariff item 2812.17.00, and the bulk form does not alter its classification.
Distilled Thionyl Chloride 99.5% Technical Grade
Distilled technical-grade thionyl chloride at 99.5% purity, purified by fractionation for polymer and dye synthesis. As a separate chemically defined compound, it falls squarely under tariff item 2812.17.00, which names thionyl chloride directly.
Industrial Grade Thionyl Chloride
Industrial-grade thionyl chloride used for large-scale production of acid chlorides from carboxylic acids. It is a reactive chloride oxide of a non-metal, specifically named in tariff item 2812.17.00, and the industrial grade does not affect classification.
Redistilled Thionyl Chloride 99.8%
Redistilled thionyl chloride at 99.8% purity, achieved through multiple vacuum distillations for sensitive fine chemical synthesis. It is explicitly thionyl chloride, a non-metal chloride oxide, and falls under tariff item 2812.17.00.
Stabilized Thionyl Chloride for Pharmaceutical Use
Stabilized thionyl chloride containing additives to prevent decomposition, used in pharmaceutical manufacturing. Chapter 28 Note 1(e) permits added stabilizers for preservation or transport, so the product remains classifiable under tariff item 2812.17.00.
Thionyl Chloride Anhydrous 99.9% ACS Reagent
ACS reagent-grade thionyl chloride, ultra-pure anhydrous SOCl2 for analytical and research applications. It is a pure chloride oxide of non-metals, and the reagent grade does not exclude it from tariff item 2812.17.00.