Chromium oxides and hydroxides

HS v2017 Code: 2819

About chromium oxides and hydroxides

HS code 2819 covers chromium oxides and hydroxides, which are essential inorganic compounds with a wide range of industrial applications. Chromium is a vital metallic element that plays a crucial role in various sectors, including metallurgy, chemical manufacturing, and pigment production. The compounds classified under this code are crucial for maintaining the quality and performance of numerous products, making them an integral part of the global import/export trade.

Production process

Chromium oxides and hydroxides are typically produced through the chemical processing of chromium-bearing ores or other chromium-containing materials. The main production techniques involve roasting, leaching, and precipitation processes to extract and purify the desired chromium compounds. These methods ensure the efficient conversion of raw materials into high-purity chromium oxides and hydroxides suitable for various industrial applications.

Production inputs

The primary inputs required for the production of chromium oxides and hydroxides include chromium-bearing ores, such as chromite, as well as various chemical reagents and energy sources. Specialized equipment, such as furnaces, reactors, and filtration systems, are also essential for the efficient and controlled manufacturing of these compounds. Additionally, skilled labor and technical expertise are necessary to ensure the quality and consistency of the final products.

Production outputs

The chromium oxides and hydroxides produced under HS code 2819 have a wide range of applications. They are commonly used as pigments in paints, inks, and coatings 3206 Pigments, dyes, varnishes, and related items, as well as in the production of catalysts 3815 Reaction initiators, reaction accelerators, and catalytic preparations. These compounds also find use in the manufacturing of various chromium-based chemicals, such as 2841 Salts of oxometallic or peroxometallic acids, which are further processed and utilized in diverse industries.

Family tree for chromium oxides and hydroxides

    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/v2017/2819'>2819: Chromium oxides and hydroxides</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/v2017/2806'>2806: Hydrogen chloride (hydrochloric acid); chlorosulphuric acid</a>"]
A --> I["<a href='/classifications/hs/v2017/2807'>2807: Sulphuric acid; oleum</a>"]
A --> J["<a href='/classifications/hs/v2017/2808'>2808: Nitric acid; sulphonitric acids</a>"]
A --> K["<a href='/classifications/hs/v2017/2809'>2809: Diphosphorus pentoxide; phosphoric acid and polyphosphoric acids</a>"]
A --> L["<a href='/classifications/hs/v2017/2810'>2810: Oxides of boron; boric acids</a>"]
A --> M["<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 --> N["<a href='/classifications/hs/v2017/2812'>2812: Halides and halide oxides of non-metals</a>"]
A --> O["<a href='/classifications/hs/v2017/2813'>2813: Sulphides of non-metals; commercial phosphorus trisulphide</a>"]
A --> P["<a href='/classifications/hs/v2017/2814'>2814: Ammonia; anhydrous or in aqueous solution</a>"]
A --> Q["<a href='/classifications/hs/v2017/2815'>2815: Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash) peroxides of sodium or potassium</a>"]
A --> R["<a href='/classifications/hs/v2017/2816'>2816: Hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides of strontium or barium</a>"]
A --> S["<a href='/classifications/hs/v2017/2817'>2817: Zinc; oxide and peroxide</a>"]
A --> T["<a href='/classifications/hs/v2017/2818'>2818: Aluminium oxide (including artificial corundum); aluminium hydroxide</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/v2017/281910'>281910: Chromium trioxide</a>"]
B --> CA["<a href='/classifications/hs/v2017/281990'>281990: Chromium oxides and hydroxides; excluding chromium trioxide</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 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