Chapter 2812 — Customs Tariff Headings

Industrial Phosgene for Isocyanate Production

Industrial phosgene in high-capacity cylinders, intended for polyurethane isocyanate manufacturing. This is the pure compound carbonyl dichloride, a chloride oxide of carbon, which is explicitly classified under heading 28.12 per Chapter 28 Note 2(a).

Liquefied Phosgene in Ton Container

Liquefied phosgene in a one-ton steel container for bulk industrial delivery. The product is the chemically defined compound carbonyl dichloride, classified under heading 28.12 as a halide oxide of carbon, per Chapter 28 Note 2(a).

Phosgene Gas Cylinder

Pressurized steel cylinder containing carbonyl dichloride (phosgene) gas, used as an intermediate in organic chemical synthesis. It is a halide oxide of carbon, specifically classified under heading 28.12 per Chapter 28 Note 2(a).

Phosgene in Composite ISO Tank

Phosgene in a 20-foot composite ISO tank for bulk international transport to chemical plants. This is the chemically defined compound carbonyl dichloride, a chloride oxide of carbon, classified under heading 28.12 per Chapter 28 Note 2(a).

Phosgene Laboratory Grade

High-purity phosgene gas in a small lecture bottle for research and analytical laboratory use. It is classified as carbonyl dichloride, a chemically defined chloride oxide of carbon, under heading 28.12 per Chapter 28 Note 2(a).

Stabilized Phosgene Solution 20% in Toluene

A 20% phosgene solution stabilized in toluene for safe handling in pharmaceutical synthesis. The primary component is chemically defined phosgene, but the solution is not a normal and necessary method of putting up phosgene for safety or transport, so it may not meet Chapter 28 Note 1(c) criteria. However, it is still classified under heading 28.12 as a chloride oxide of carbon per Note 2(a), provided the solvent does not render it suitable for specific use.

Distilled Phosphorus Oxychloride 98.5% Assay

Distilled phosphorus oxychloride with a minimum assay of 98.5%, refined for high-precision applications such as semiconductor doping precursors. It is a separate chemically defined compound of phosphorus, a non-metal, and qualifies under tariff item 2812.12.00 as a chloride oxide of a non-metal.

Industrial Phosphorus Oxychloride for Pesticide Production

Industrial phosphorus oxychloride used as an intermediate in synthesizing organophosphate pesticides such as malathion. It is a pure, chemically defined compound of phosphorus and chlorine, classified under tariff item 2812.12.00 as a chloride oxide of a non-metal.

Phosphorus Oxychloride 99% Pure Technical Grade

High-purity (99%) technical grade phosphorus oxychloride, a fuming liquid used in the production of phosphate esters and flame retardants. It is a chemically defined compound of a non-metal, meeting the criteria of chapter note 1 and classified under tariff item 2812.12.00.

Phosphoryl Chloride (POCl3)

Phosphoryl chloride (POCl3), also known as phosphorus oxychloride, is a colorless liquid chemical compound with the formula POCl3. It is a chloride oxide of phosphorus, a non-metal, and is classified under tariff item 2812.12.00 as a chemically defined compound.

POCl3 Phosphorus(V) Oxychloride Lab Reagent

Laboratory-grade POCl3 is a reagent for chlorination reactions in research and small-scale synthesis, supplied in glass bottles. It is a chemically defined chloride oxide of phosphorus, a non-metal, and falls under tariff item 2812.12.00.

High Purity PCl3 for Semiconductor Doping

High purity phosphorus trichloride (PCl3) used as a phosphorus source for semiconductor doping. This chemically defined inorganic compound meets the criteria of Chapter 28 for halides of non-metals, specifically classified under tariff item 2812.13.00.

Industrial Grade Phosphorus Trichloride

Industrial grade phosphorus trichloride produced by reacting phosphorus with chlorine, used in herbicide and flame retardant manufacturing. As a chemically defined non-metal halide, it is correctly classified under tariff item 2812.13.00.

PCl3 for Flame Retardant Production

Phosphorus trichloride manufactured specifically for synthesizing organophosphorus flame retardants. This chemically defined compound is a key intermediate and falls under tariff item 2812.13.00 as a chloride of a non-metal.

Phosphorus Trichloride (PCl3) 99% Purity

Phosphorus trichloride (PCl3) at 99% purity, a colorless to pale yellow fuming liquid. This chemically defined inorganic compound is classified under tariff item 2812.13.00 as a chloride of the non-metal phosphorus.

Anhydrous Phosphorus Pentachloride Reagent

Anhydrous phosphorus pentachloride (PCl5) in crystalline form, laboratory reagent grade, used for moisture-sensitive dehydration and chlorination reactions in synthetic chemistry. It is a separate chemically defined compound of a non-metal halide, classified under this tariff item as a chloride of a non-metal.

Industrial Grade Phosphorus Pentachloride Flakes

Industrial-grade phosphorus pentachloride in flake form, minimum 98% purity, used for bulk chlorination processes in pesticide and pharmaceutical manufacturing. It is a separate chemically defined compound of a non-metal halide, meeting the chapter's requirements for classification under this tariff item.

Pharma-Grade Phosphorus Pentachloride Powder

High-purity (99.9%) phosphorus pentachloride powder meeting pharmaceutical standards, used for acid chloride formation in API synthesis. As a separate chemically defined compound of a non-metal halide, it falls under this tariff item, which covers phosphorus pentachloride without regard to grade or end use.

Phosphorus Pentachloride 99% Pure Crystals

Phosphorus pentachloride (PCl5) in crystalline form with 99% purity, used as a chlorinating agent in organic synthesis to convert carboxylic acids to acid chlorides. It is a separate chemically defined compound of a non-metal halide, classified under this tariff item as a chloride of a non-metal.

Technical Phosphorus Pentachloride Granules

Technical-grade phosphorus pentachloride granules at 97% purity, used for water treatment chemical manufacturing and metal surface etching. It is a separate chemically defined compound of a non-metal halide, meeting the chapter's classification criteria for this tariff item.

Distilled Sulfur Monochloride

Distilled sulfur monochloride (S2Cl2) is a low-impurity grade chemical used in pharmaceutical sulfurylation steps. It is a separate chemically defined compound of sulfur and chlorine, falling under tariff item 2812.15.00 as a chloride of a non-metal.

Industrial Grade Sulfur Monochloride

Industrial-grade sulfur monochloride (S2Cl2) is supplied in drums for vulcanization processes in rubber manufacturing. It is a chemically defined compound of sulfur and chlorine, classifiable under tariff item 2812.15.00 as a chloride of a non-metal.

Sulfur Monochloride 99% Pure

Sulfur monochloride (S2Cl2) at 99% purity is a fuming, yellowish liquid used primarily as a chlorinating agent in organic synthesis. It is a separate chemically defined compound of sulfur and chlorine, falling under tariff item 2812.15.00 as a chloride of a non-metal.

Sulfur Monochloride for Organic Synthesis

High-purity sulfur monochloride for laboratory-scale organic chlorinations and sulfurization reactions is a chemically defined compound of sulfur and chlorine. It falls under tariff item 2812.15.00 as a chloride of a non-metal, per Chapter 28 notes.

Technical Sulfur Monochloride 96%

Technical-grade sulfur monochloride at 96% assay is an amber-colored liquid used for agrochemical intermediate production. It is a chemically defined compound of sulfur and chlorine, classifiable under tariff item 2812.15.00 as a chloride of a non-metal.

Industrial Grade Sulfur Dichloride

> Industrial-grade sulfur dichloride is a chemically defined compound of sulfur and chlorine, used as an intermediate in the production of pesticides, pharmaceuticals, and dyes. As a halide oxide of a non-metal, it falls squarely under tariff item 2812.16.00, which covers sulphur dichloride specifically. The product's chemical identity and industrial application align with the scope of Chapter 28 for separate chemically defined compounds.

Pharma-Grade Sulfur Dichloride

> Pharmaceutical-grade sulfur dichloride is a high-purity, chemically defined compound used in API synthesis, meeting strict impurity specifications. It is classified under tariff item 2812.16.00 as sulphur dichloride, a halide oxide of a non-metal. The product's purity and intended use do not alter its chemical identity, keeping it within Chapter 28's scope.

Stabilized Sulfur Dichloride Solution

> Stabilized sulfur dichloride solution consists of sulphur dichloride dissolved in a solvent, with stabilizers to prevent polymerization. Under Chapter 28 Note 1, solutions of chemically defined compounds are classified in this chapter if the solvent is for safety or transport and does not make the product suitable for a specific use. The core compound remains sulphur dichloride, falling under tariff item 2812.16.00.

Sulfur Dichloride 99% Purity

> Sulfur dichloride at 99% purity is a chemically defined compound, a fuming yellow liquid used as a chlorinating agent in organic synthesis. It is specifically named in tariff item 2812.16.00 as sulphur dichloride, a halide oxide of a non-metal. The high purity confirms it is a separate chemically defined compound under Chapter 28.

Thionyl Chloride Alternative Sulfur Dichloride

> This sulfur dichloride product is marketed as a thionyl chloride substitute for converting carboxylic acids to acid chlorides, but it is chemically sulphur dichloride. As a halide oxide of a non-metal, it falls under tariff item 2812.16.00, which specifically covers sulphur dichloride. The intended use does not affect classification, as Chapter 28 focuses on chemical identity.

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.

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.

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.

Thionyl Chloride in Glass Ampoules

Thionyl chloride packaged in 100ml glass ampoules for laboratory single-use. The packaging does not change the classification; it remains a chemically defined compound under tariff item 2812.17.00, as Chapter 28 does not exclude retail preparations for this product.

Thionyl Chloride (SOCl2) 99% Purity

Thionyl chloride (SOCl2) at 99% purity, a colorless to pale yellow liquid used as a chlorinating and dehydrating agent. It is a chemically defined compound named in tariff item 2812.17.00, and the general-purpose use does not affect classification.

Thionyl Chloride with Pyridine Stabilizer

Thionyl chloride stabilized with 0.1% pyridine to inhibit decomposition for safer storage and transport in pharmaceutical synthesis. The pyridine is a stabilizer permitted under Chapter 28 Note 1(e), so the product remains classifiable under tariff item 2812.17.00.

99.9% Pure Arsenic Trichloride

High-purity arsenic trichloride (99.9% AsCl3) is a chemically defined inorganic compound used in laboratory and microelectronics applications. It is an anhydrous chloride of a non-metal, falling under tariff item 2812.19.00 as 'Other' chlorides and chloride oxides of non-metals.

Anhydrous Arsenic Trichloride

Anhydrous arsenic trichloride is a fuming liquid used in GaAs semiconductor production via MOCVD processes. It is a chemically defined chloride of a non-metal, classified under tariff item 2812.19.00 as 'Other' chlorides and chloride oxides of non-metals.

Antimony Trichloride

Antimony trichloride (SbCl3) is a colorless, hygroscopic solid used primarily as a catalyst in flame retardant formulations and in organic synthesis. It is a chemically defined inorganic compound of a non-metal chloride, falling under tariff item 2812.19.00 as 'Other' chlorides of non-metals. Its classification is supported by Chapter 28 notes, as it is not excluded by Section XV metal provisions.

Antimony Trichloride (SbCl3)

Antimony trichloride (SbCl3) is a hygroscopic solid used in fireproofing textiles. It is a chemically defined inorganic chloride of a non-metal, classified under tariff item 2812.19.00 as 'Other' chlorides and chloride oxides of non-metals.

Arsenic Trichloride

Arsenic trichloride (AsCl3) is a colorless, oily liquid used in wood preservation and as an intermediate in pharmaceutical synthesis. It is a chemically defined chloride of a non-metal (arsenic), classified under tariff item 2812.19.00 as 'Other' chlorides of non-metals. Chapter 28 notes confirm its inclusion as a separate chemical element compound.

Arsenic Trichloride (AsCl3)

Arsenic trichloride (AsCl3) is a toxic, oily liquid used in wood preservation and glass production. It is a chemically defined inorganic compound and a chloride of a non-metal, classified under tariff item 2812.19.00 as 'Other' chlorides and chloride oxides of non-metals.

Arsenic Trichloride for Organic Synthesis

Arsenic trichloride for organic synthesis is a technical-grade reagent used in Vilsmeier-Haack formylation reactions. As a chemically defined non-metal chloride, it is classified under tariff item 2812.19.00 as 'Other' chlorides and chloride oxides of non-metals.

Boron Trichloride Gas

Boron trichloride (BCl3) is a compressed gas used as a doping agent in semiconductor manufacturing and as a catalyst in organic synthesis. It is a chemically defined chloride of a non-metal (boron), falling under tariff item 2812.19.00 as 'Other' chlorides of non-metals. The product meets Chapter 28 criteria for separate chemical compounds.

Carbonyl Sulfide Chloride

Carbonyl sulfide chloride, also known as carbonyl chloride sulfide, is a reactive chemical compound containing carbon, oxygen, sulfur, and chlorine bonds. It fits the definition of halide oxides of non-metals under tariff item 2812.19.00 as 'Other' chloride oxides. This compound is used as an intermediate in organic synthesis and specialty chemical production.

Carbonyl Sulfide (COS)

Carbonyl sulfide (COS) is a colorless, poisonous gas. Although it is not a chloride, it is classified under tariff item 2812.19.00 as 'Other' chlorides and chloride oxides of non-metals based on Chapter 28 notes, which include certain carbon compounds.

Chlorocarbonyl Difluoride

Chlorocarbonyl difluoride, also known as carbonyl chloride fluoride, is a mixed halide oxide of carbon classified under tariff item 2812.19.00 as 'Other' chloride oxides of non-metals. It is utilized in the production of fluorochemicals and as a reagent in organic synthesis. The compound meets Chapter 28 criteria for halide oxides of non-metals.

Electronic Grade Arsenic Trichloride

Electronic-grade arsenic trichloride meets SEMI standards for III-V compound semiconductor doping. It is a chemically defined non-metal chloride with ultra-low impurity levels, classified under tariff item 2812.19.00 as 'Other' chlorides and chloride oxides of non-metals.

Niobium Pentachloride

Niobium pentachloride (NbCl5) is a yellow crystalline solid used as a catalyst in organic synthesis and in the production of superconductors. Although niobium is a metal, it is treated as a non-metal chloride for classification purposes under Chapter 28, specifically tariff item 2812.19.00 as 'Other' chlorides of non-metals. The product is a chemically defined compound.

Oxalyl Chloride

Oxalyl chloride ((COCl)2) is a colorless liquid used as a chlorinating and dehydrating agent in organic synthesis. It is classified under tariff item 2812.19.00 as a chloride of non-metals, with its carbon-chlorine bonds meeting Chapter 28 definitions. The product is a chemically defined compound.

Phosgene Gas (Carbonyl Chloride)

Phosgene gas (carbonyl chloride, COCl2) is a colorless, highly toxic gas classified as a chloride oxide of carbon under tariff item 2812.19.00 as 'Other' chloride oxides of non-metals. Its structure contains both carbon-oxygen and carbon-chlorine bonds, fitting Chapter 28 definitions. It is used in the production of isocyanates and pesticides.

Phosphorus Oxychloride

Phosphorus oxychloride (POCl3) is a colorless, fuming liquid used in organic synthesis for phosphorylation reactions and as a chlorinating agent. It is classified under tariff item 2812.19.00 as a chloride oxide of non-metals (phosphorus). The product is a chemically defined compound meeting Chapter 28 criteria.

Phosphorus Oxychloride (POCl3)

Phosphorus oxychloride (POCl3) is a colorless liquid used in pesticide and flame retardant production. It is a chemically defined chloride oxide of a non-metal, classified under tariff item 2812.19.00 as 'Other' chlorides and chloride oxides of non-metals.

Phosphorus Trichloride (PCl3)

Phosphorus trichloride (PCl3) is a fuming, colorless liquid essential for organophosphorus compounds. It is a chemically defined chloride of a non-metal, classified under tariff item 2812.19.00 as 'Other' chlorides and chloride oxides of non-metals.

Silicon Tetrachloride

Silicon tetrachloride (SiCl4) is a colorless, fuming liquid used in the production of optical fibers and as a precursor for high-purity silicon. It is classified under tariff item 2812.19.00 as a chloride of non-metals (silicon). The product is a chemically defined compound meeting Chapter 28 requirements.