Thionyl Chloride
Thionyl chloride (SOCl2) is a colorless liquid used as a chlorinating and dehydrating agent in organic synthesis. It falls under HTS 2812.90.00.90 as a halide oxide of nonmetals, specifically a chloride oxide of sulfur, distinct from pure halides like hydrogen chloride. This classification applies to chemically defined inorganic compounds of nonmetals in this category.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified as hydrogen chloride
Pure HCl gas or aqueous solutions are specifically under 2812.10, while thionyl chloride is a distinct sulfur oxychloride.
If containing organic substituents
Organo-inorganic compounds like sulfonyl chlorides fall under Chapter 29 due to organic components.
If imported as a mixture or preparation
Chemical mixtures not chemically defined are classified in 3824, not pure compounds in Chapter 28.
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Import Tips & Compliance
• Verify chemical purity and provide Safety Data Sheets (SDS) compliant with OSHA and EPA for hazardous material declaration
• Ensure proper UN packaging and labeling as a corrosive substance (UN1836) to avoid customs delays
• Confirm no organo-inorganic impurities, as those shift to Chapter 29; include lab analysis certificates
Related Products under HTS 2812.90.00.90
Phosphoryl Chloride
Phosphoryl chloride (POCl3), also known as phosphoryl chloride, is a fuming colorless liquid used in phosphorylation reactions and as a dehydrating agent. Classified under HTS 2812.90.00.90 as a halide oxide of phosphorus (nonmetal). It meets Chapter 28 definitions for chemically defined inorganic compounds.
Carbonyl Chloride (Phosgene)
Carbonyl chloride, commonly called phosgene (COCl2), is a toxic gas used in polyurethane and isocyanate production. It qualifies as a halide oxide of carbon under HTS 2812.90.00.90 per Chapter 28 note 2(b). Strict handling due to extreme toxicity.
Titanium Tetrachloride
Titanium tetrachloride (TiCl4) is a colorless fuming liquid used in titanium metal production and smoke screens. Though titanium is a metal, it's classified here as a halide of a transition nonmetal-like compound under 2812.90 per HTS practice. Chemically defined per Chapter 28.
Arsenic Trichloride
Arsenic trichloride (AsCl3) is a colorless oily liquid used in organic synthesis and wood preservation. Classified in HTS 2812.90.00.90 as a halide of arsenic (nonmetal/metalloid). Meets inorganic chemically defined criteria excluding organo-compounds.
Niobium Pentachloride
Niobium pentachloride (NbCl5) is a yellow crystalline solid used as a catalyst and in superconductors. Falls under HTS 2812.90.00.90 for other nonmetal halide oxides, analogous to TiCl4 treatment. Chemically defined inorganic compound.
Phosphorus Oxychloride Mixture
Stabilized phosphorus oxychloride powder for lab use, a powdered form of POCl3 absorbed on carrier. HTS 2812.90.00.90 as other halide oxide of nonmetal, provided chemically defined. Used in research avoiding liquid hazards.