Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash) peroxides of sodium or potassium

HS v2022 Code: 2815

About sodium hydroxide (caustic soda); potassium hydroxide (caustic potash) peroxides of sodium or potassium

HS code 2815 covers a group of important industrial chemicals, including sodium hydroxide (caustic soda) and potassium hydroxide (caustic potash). These substances are widely used in a variety of manufacturing processes, from soap and detergent production to water treatment and chemical processing. As essential inputs for many industries, the compounds under this code play a crucial role in the broader global economy.

Production process

The primary production method for sodium hydroxide and potassium hydroxide is the electrolysis of brine (saltwater) or potassium chloride solutions. This process involves passing an electric current through the solution, which separates the sodium or potassium ions from the chloride ions. The sodium or potassium ions then react with water to form the respective hydroxide compounds.

Production inputs

The main inputs required for the production of the chemicals under HS code 2815 are brine or potassium chloride solutions, as well as electricity to power the electrolysis process. Specialized equipment, such as electrolytic cells and evaporation systems, are also necessary for the efficient production of these compounds. Additionally, the industry may require various ancillary materials, such as filters, pumps, and control systems.

Production outputs

The primary outputs of this industry are sodium hydroxide and potassium hydroxide, which are then consumed by a wide range of other industries. Sodium hydroxide, for example, is a key ingredient in the production of 3401 Soap; organic surface-active products and preparations for use as soap, in the form of bars, cakes, moulded pieces or shapes, whether or not containing soap; organic surface-active products and preparations for washing the skin, in the form of liquid or cream and put up for retail sale, whether or not containing soap; paper, wadding, felt and nonwovens, impregnated, coated or covered with soap or detergent, while potassium hydroxide is used in the manufacture of 2829 Inorganic oxygen compounds of non-metals, among other applications.

Family tree for sodium hydroxide (caustic soda); potassium hydroxide (caustic potash) peroxides of sodium or potassium

    graph LR
    A["<a href='/classifications/hs/v2022/28'>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/v2022/2815'>2815: Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash) peroxides of sodium or potassium</a>"]

    A --> C["<a href='/classifications/hs/v2022/2801'>2801: Fluorine, chlorine, bromine and iodine</a>"]
A --> D["<a href='/classifications/hs/v2022/2802'>2802: Sulphur; sublimed or precipitated, colloidal sulphur</a>"]
A --> E["<a href='/classifications/hs/v2022/2803'>2803: Carbon; carbon blacks and other forms of carbon n.e.c.</a>"]
A --> F["<a href='/classifications/hs/v2022/2804'>2804: Hydrogen, rare gases and other non-metals</a>"]
A --> G["<a href='/classifications/hs/v2022/2805'>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/v2022/2806'>2806: Hydrogen chloride (hydrochloric acid); chlorosulphuric acid</a>"]
A --> I["<a href='/classifications/hs/v2022/2807'>2807: Sulphuric acid; oleum</a>"]
A --> J["<a href='/classifications/hs/v2022/2808'>2808: Nitric acid; sulphonitric acids</a>"]
A --> K["<a href='/classifications/hs/v2022/2809'>2809: Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined</a>"]
A --> L["<a href='/classifications/hs/v2022/2810'>2810: Oxides of boron; boric acids</a>"]
A --> M["<a href='/classifications/hs/v2022/2811'>2811: Inorganic acids and other inorganic oxygen compounds of non-metals; n.e.c. in heading no. 2806 to 2810</a>"]
A --> N["<a href='/classifications/hs/v2022/2812'>2812: Halides and halide oxides of non-metals</a>"]
A --> O["<a href='/classifications/hs/v2022/2813'>2813: Sulphides of non-metals; commercial phosphorus trisulphide</a>"]
A --> P["<a href='/classifications/hs/v2022/2814'>2814: Ammonia; anhydrous or in aqueous solution</a>"]
A --> Q["<a href='/classifications/hs/v2022/2816'>2816: Hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides of strontium or barium</a>"]
A --> R["<a href='/classifications/hs/v2022/2817'>2817: Zinc; oxide and peroxide</a>"]
A --> S["<a href='/classifications/hs/v2022/2818'>2818: Aluminium oxide (including artificial corundum); aluminium hydroxide</a>"]
A --> T["<a href='/classifications/hs/v2022/2819'>2819: Chromium oxides and hydroxides</a>"]
A --> U["<a href='/classifications/hs/v2022/2820'>2820: Manganese oxides</a>"]
A --> V["<a href='/classifications/hs/v2022/2821'>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/v2022/2822'>2822: Cobalt oxides and hydroxides; commercial cobalt oxides</a>"]
A --> X["<a href='/classifications/hs/v2022/2823'>2823: Titanium oxides</a>"]
A --> Y["<a href='/classifications/hs/v2022/2824'>2824: Lead oxides; red lead and orange lead</a>"]
A --> Z["<a href='/classifications/hs/v2022/2825'>2825: Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides</a>"]
A --> BA["<a href='/classifications/hs/v2022/2826'>2826: Fluorides; fluorosilicates, fluoroaluminates and other complex fluorine salts</a>"]
A --> BB["<a href='/classifications/hs/v2022/2827'>2827: Chlorides; chloride oxides and chloride hydroxides; bromides and bromide oxides; iodides and iodide oxides</a>"]
A --> BC["<a href='/classifications/hs/v2022/2828'>2828: Hypochlorites; commercial calcium hypochlorite; chlorites; hypobromites</a>"]
A --> BD["<a href='/classifications/hs/v2022/2829'>2829: Chlorates and perchlorates; bromates and perbromates; iodates and periodates</a>"]
A --> BE["<a href='/classifications/hs/v2022/2830'>2830: Sulphides; polysulphides whether or not chemically defined</a>"]
A --> BF["<a href='/classifications/hs/v2022/2831'>2831: Dithionites and sulphoxylates</a>"]
A --> BG["<a href='/classifications/hs/v2022/2832'>2832: Sulphites; thiosulphates</a>"]
A --> BH["<a href='/classifications/hs/v2022/2833'>2833: Sulphates; alums; peroxosulphates (persulphates)</a>"]
A --> BI["<a href='/classifications/hs/v2022/2834'>2834: Nitrites; nitrates</a>"]
A --> BJ["<a href='/classifications/hs/v2022/2835'>2835: Phosphinates (hypophosphites), phosphonates (phosphites), and phosphates; and polyphosphates, whether or not chemically defined</a>"]
A --> BK["<a href='/classifications/hs/v2022/2836'>2836: Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate</a>"]
A --> BL["<a href='/classifications/hs/v2022/2837'>2837: Cyanides, cyanide oxides and complex cyanides</a>"]
A --> BM["<a href='/classifications/hs/v2022/2839'>2839: Silicates; commercial alkali metal silicates</a>"]
A --> BN["<a href='/classifications/hs/v2022/2840'>2840: Borates; peroxoborates (perborates)</a>"]
A --> BO["<a href='/classifications/hs/v2022/2841'>2841: Salts of oxometallic or peroxometallic acids</a>"]
A --> BP["<a href='/classifications/hs/v2022/2842'>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/v2022/2843'>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/v2022/2844'>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/v2022/2845'>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/v2022/2846'>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/v2022/2847'>2847: Hydrogen peroxide; whether or not solidified with urea</a>"]
A --> BV["<a href='/classifications/hs/v2022/2849'>2849: Carbides, whether or not chemically defined</a>"]
A --> BW["<a href='/classifications/hs/v2022/2850'>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/v2022/2852'>2852: Inorganic or organic compounds of mercury, excluding amalgams, whether or not chemically defined</a>"]
A --> BY["<a href='/classifications/hs/v2022/2853'>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/v2022/281511'>281511: Sodium hydroxide (caustic soda); solid</a>"]
B --> CA["<a href='/classifications/hs/v2022/281512'>281512: Sodium hydroxide (caustic soda); in aqueous solution (soda lye or liquid soda)</a>"]
B --> CB["<a href='/classifications/hs/v2022/281520'>281520: Potassium hydroxide (caustic potash)</a>"]
B --> CC["<a href='/classifications/hs/v2022/281530'>281530: Peroxides of sodium or potassium</a>"]


    %% Color coordination by level

    classDef level1 color:#000,fill:#a8f9ff,stroke:#333,stroke-width:2px
    classDef level2 color:#000,fill:#e0a458,stroke:#333,stroke-width:1px
    classDef level3 color:#000,fill:#419d78,stroke:#333,stroke-width:1px
    classDef level4 color:#000,fill:#c04abc,stroke:#333,stroke-width:1px
    classDef level5 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef level6 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef highlight color:#000,fill:#fff,stroke:#000,stroke-width:5px



  %% Apply classes
  class A level2
class B level4
class C level4
class D level4
class E level4
class F level4
class G level4
class H level4
class I level4
class J level4
class K level4
class L level4
class M level4
class N level4
class O level4
class P level4
class Q level4
class R level4
class S level4
class T level4
class U level4
class V level4
class W level4
class X level4
class Y level4
class Z level4
class BA level4
class BB level4
class BC level4
class BD level4
class BE level4
class BF level4
class BG level4
class BH level4
class BI level4
class BJ level4
class BK level4
class BL level4
class BM level4
class BN level4
class BO level4
class BP level4
class BQ level4
class BR level4
class BS level4
class BT level4
class BU level4
class BV level4
class BW level4
class BX level4
class BY level4
class BZ level6
class CA level6
class CB level6
class CC level6

  class B highlight

  %% class A level1
  %% class B,C level2
  %% class D,E,F,G,H,I level2
  %% class J,K,L,M,N,O,P level3
  %% class B highlight