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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If pure phosphorus pentafluoride
Simple phosphorus halides like PF5 are under 2804.70, but oxychlorides like POCl3 are halide oxides in 2812.
If for related phosphonate salts
Phosphorus acid salts fall in 2835, while the anhydrous oxychloride remains in Chapter 28.
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Import Tips & Compliance
• Declare as UN1802 corrosive; use compatible fluoropolymer-lined containers to prevent reactions
• Provide TSCA certification and import alerts check for phosphorus compounds
• Avoid bulk imports without stabilization, as hydrolysis risks; include stabilizer details if applicable
Related Products under HTS 2812.90.00.90
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.
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.