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Thionyl Chloride Alternative Sulfur Dichloride

This high-reactivity sulfur dichloride serves as a thionyl chloride substitute in converting carboxylic acids to acid chlorides, squarely under HTS 2812.16.00.00 for sulfur chloride oxides. It's a staple in fine chemical manufacturing.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3.7%+37.5%41.2%
🇲🇽Mexico3.7%+10.0%13.7%
🇨🇦Canada3.7%+10.0%13.7%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+12.5%12.5%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

2812Same rate: 41.2%

If pure sulfur monochloride (S2Cl2) instead of dichloride

Different stoichiometry classifies as separate subheading within 2812.10 for monochloride.

2842.90Lower: 15.8% vs 41.2%

If when complexed with metals for specialty salts

Metal complexes become double salts under 2842 per Chapter notes.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.

Import Tips & Compliance

• Label as corrosive (8) and toxic (6.1); segregate from water-reactive goods during shipping

• Test for moisture content <0.1% to maintain stability and proper classification

• Avoid bulk imports without stabilization—prone to decomposition causing customs holds