Hydrogen chloride (hydrochloric acid); chlorosulphuric acid
HS v2017 Code: 2806
About hydrogen chloride (hydrochloric acid); chlorosulphuric acid
HS code 2806 covers the production and trade of hydrogen chloride, also known as hydrochloric acid, and chlorosulphuric acid. These chemicals are essential for a wide range of industrial processes and applications, making them crucial components in the broader chemical industry. Hydrogen chloride, in particular, is a high-volume commodity chemical with diverse uses, while chlorosulphuric acid serves specialized applications in the manufacturing of other chemicals and pharmaceuticals.
Production process
Hydrogen chloride is primarily produced by the reaction of hydrogen gas and chlorine gas. This process typically takes place in a specialized reactor, where the two gases are combined under controlled temperature and pressure conditions. Chlorosulphuric acid, on the other hand, is synthesized by the reaction of sulfur trioxide and hydrogen chloride, often in the presence of a catalyst to enhance the reaction efficiency.
Production inputs
The production of HS code 2806 chemicals requires several key inputs, including hydrogen gas, chlorine gas, and sulfur trioxide for the manufacture of chlorosulphuric acid. Additionally, specialized equipment such as reactors, distillation columns, and storage tanks are essential for the various production steps. The industry also relies on a skilled workforce with expertise in chemical engineering and process control.
Production outputs
The main outputs of HS code 2806 are hydrogen chloride (hydrochloric acid) and chlorosulphuric acid. Hydrogen chloride is widely used in the production of 2815 (Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium), 2817 Zinc oxide; zinc peroxide, and 2825 Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides, among other chemical products. Chlorosulphuric acid is primarily consumed in the manufacture of 2920 (Esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives) and various pharmaceutical intermediates.
Family tree for hydrogen chloride (hydrochloric acid); chlorosulphuric acid
graph LR
A["<a href='/classifications/hs/v2017/28'>28: Inorganic chemicals; organic and inorganic compounds of precious metals; of rare earth metals, of radio-active elements and of isotopes</a>"]
A --> B["<a href='/classifications/hs/v2017/2806'>2806: Hydrogen chloride (hydrochloric acid); chlorosulphuric acid</a>"]
A --> C["<a href='/classifications/hs/v2017/2801'>2801: Fluorine, chlorine, bromine and iodine</a>"]
A --> D["<a href='/classifications/hs/v2017/2802'>2802: Sulphur; sublimed or precipitated, colloidal sulphur</a>"]
A --> E["<a href='/classifications/hs/v2017/2803'>2803: Carbon; carbon blacks and other forms of carbon n.e.c.</a>"]
A --> F["<a href='/classifications/hs/v2017/2804'>2804: Hydrogen, rare gases and other non-metals</a>"]
A --> G["<a href='/classifications/hs/v2017/2805'>2805: Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury</a>"]
A --> H["<a href='/classifications/hs/v2017/2807'>2807: Sulphuric acid; oleum</a>"]
A --> I["<a href='/classifications/hs/v2017/2808'>2808: Nitric acid; sulphonitric acids</a>"]
A --> J["<a href='/classifications/hs/v2017/2809'>2809: Diphosphorus pentoxide; phosphoric acid and polyphosphoric acids</a>"]
A --> K["<a href='/classifications/hs/v2017/2810'>2810: Oxides of boron; boric acids</a>"]
A --> L["<a href='/classifications/hs/v2017/2811'>2811: Inorganic acids and other inorganic oxygen compounds of non-metals; n.e.c. in heading no. 2806 to 2810</a>"]
A --> M["<a href='/classifications/hs/v2017/2812'>2812: Halides and halide oxides of non-metals</a>"]
A --> N["<a href='/classifications/hs/v2017/2813'>2813: Sulphides of non-metals; commercial phosphorus trisulphide</a>"]
A --> O["<a href='/classifications/hs/v2017/2814'>2814: Ammonia; anhydrous or in aqueous solution</a>"]
A --> P["<a href='/classifications/hs/v2017/2815'>2815: Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash) peroxides of sodium or potassium</a>"]
A --> Q["<a href='/classifications/hs/v2017/2816'>2816: Hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides of strontium or barium</a>"]
A --> R["<a href='/classifications/hs/v2017/2817'>2817: Zinc; oxide and peroxide</a>"]
A --> S["<a href='/classifications/hs/v2017/2818'>2818: Aluminium oxide (including artificial corundum); aluminium hydroxide</a>"]
A --> T["<a href='/classifications/hs/v2017/2819'>2819: Chromium oxides and hydroxides</a>"]
A --> U["<a href='/classifications/hs/v2017/2820'>2820: Manganese oxides</a>"]
A --> V["<a href='/classifications/hs/v2017/2821'>2821: Iron oxides and hydroxides; earth colours containing 70% or more by weight of combined iron evaluated as Fe2o3</a>"]
A --> W["<a href='/classifications/hs/v2017/2822'>2822: Cobalt oxides and hydroxides; commercial cobalt oxides</a>"]
A --> X["<a href='/classifications/hs/v2017/2823'>2823: Titanium oxides</a>"]
A --> Y["<a href='/classifications/hs/v2017/2824'>2824: Lead oxides; red lead and orange lead</a>"]
A --> Z["<a href='/classifications/hs/v2017/2825'>2825: Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides</a>"]
A --> BA["<a href='/classifications/hs/v2017/2826'>2826: Fluorides; fluorosilicates, fluoroaluminates and other complex fluorine salts</a>"]
A --> BB["<a href='/classifications/hs/v2017/2827'>2827: Chlorides; chloride oxides and chloride hydroxides; bromides and bromide oxides; iodides and iodide oxides</a>"]
A --> BC["<a href='/classifications/hs/v2017/2828'>2828: Hypochlorites; commercial calcium hypochlorite; chlorites; hypobromites</a>"]
A --> BD["<a href='/classifications/hs/v2017/2829'>2829: Chlorates and perchlorates; bromates and perbromates; iodates and periodates</a>"]
A --> BE["<a href='/classifications/hs/v2017/2830'>2830: Sulphides; polysulphides whether or not chemically defined</a>"]
A --> BF["<a href='/classifications/hs/v2017/2831'>2831: Dithionites and sulphoxylates</a>"]
A --> BG["<a href='/classifications/hs/v2017/2832'>2832: Sulphites; thiosulphates</a>"]
A --> BH["<a href='/classifications/hs/v2017/2833'>2833: Sulphates; alums; peroxosulphates (persulphates)</a>"]
A --> BI["<a href='/classifications/hs/v2017/2834'>2834: Nitrites; nitrates</a>"]
A --> BJ["<a href='/classifications/hs/v2017/2835'>2835: Phosphinates (hypophosphites), phosphonates (phosphites), and phosphates; and polyphosphates, whether or not chemically defined</a>"]
A --> BK["<a href='/classifications/hs/v2017/2836'>2836: Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate</a>"]
A --> BL["<a href='/classifications/hs/v2017/2837'>2837: Cyanides, cyanide oxides and complex cyanides</a>"]
A --> BM["<a href='/classifications/hs/v2017/2839'>2839: Silicates; commercial alkali metal silicates</a>"]
A --> BN["<a href='/classifications/hs/v2017/2840'>2840: Borates; peroxoborates (perborates)</a>"]
A --> BO["<a href='/classifications/hs/v2017/2841'>2841: Salts of oxometallic or peroxometallic acids</a>"]
A --> BP["<a href='/classifications/hs/v2017/2842'>2842: Salts of inorganic acids or peroxoacids, n.e.c. including aluminosilicates whether or not chemically defined, but excluding azides</a>"]
A --> BQ["<a href='/classifications/hs/v2017/2843'>2843: Colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals</a>"]
A --> BR["<a href='/classifications/hs/v2017/2844'>2844: Radioactive chemical elements and radioactive isotopes (including the fissile or fertile chemical elements and isotopes); and their compounds; mixtures and residues containing these products</a>"]
A --> BS["<a href='/classifications/hs/v2017/2845'>2845: Isotopes other than those of heading no. 2844; compounds, inorganic or organic, of such isotopes, whether or not chemically defined</a>"]
A --> BT["<a href='/classifications/hs/v2017/2846'>2846: Compounds, inorganic or organic, of rare-earth metals; of yttrium or of scandium or of mixtures of these metals</a>"]
A --> BU["<a href='/classifications/hs/v2017/2847'>2847: Hydrogen peroxide; whether or not solidified with urea</a>"]
A --> BV["<a href='/classifications/hs/v2017/2849'>2849: Carbides, whether or not chemically defined</a>"]
A --> BW["<a href='/classifications/hs/v2017/2850'>2850: Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading no. 2849</a>"]
A --> BX["<a href='/classifications/hs/v2017/2852'>2852: Inorganic or organic compounds of mercury, excluding amalgams, whether or not chemically defined</a>"]
A --> BY["<a href='/classifications/hs/v2017/2853'>2853: Phosphides, chemically defined or not, not ferrophosphorus; other inorganic compounds n.e.c. (including distilled, conductivity water and water of like purity); liquid air, rare gases removed or not; compressed air; amalgams, not precious metal amalgams</a>"]
B --> BZ["<a href='/classifications/hs/v2017/280610'>280610: Hydrogen chloride (hydrochloric acid)</a>"]
B --> CA["<a href='/classifications/hs/v2017/280620'>280620: Chlorosulphuric acid</a>"]
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classDef level6 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
classDef highlight color:#000,fill:#fff,stroke:#000,stroke-width:5px
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class BA level4
class BB level4
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class BE level4
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class BG level4
class BH level4
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class BK level4
class BL level4
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class BO level4
class BP level4
class BQ level4
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class CA level6
class B highlight
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