Chapter 2819 — Customs Tariff Headings
Subheadings
Products classified under Tariff item 28.19
Anodizing Chromium Trioxide Powder
Chromium trioxide powder specifically formulated for Type II anodizing of aluminum alloys. This chemically defined inorganic compound falls under tariff item 2819.10.00 as chromium trioxide, per Chapter 28's scope for separate chemically defined compounds.
2819.10.00Chromium Trioxide 99.9% Pure Crystals
High-purity chromium trioxide crystals (99.9% CrO3) for laboratory and electronics etching. As a separate chemically defined compound, it is classified under tariff item 2819.10.00, consistent with Chapter 28's coverage of pure inorganic compounds.
2819.10.00Chromium Trioxide Anhydrous Powder
Anhydrous chromium trioxide powder (CrO3), a chemically defined inorganic compound used in chrome plating and as an oxidizing agent. It falls squarely under tariff item 2819.10.00 as chromium trioxide, per Chapter 28's rules for separate chemical elements and compounds.
2819.10.00Electroplating Grade Chromium Trioxide
High-purity chromium trioxide optimized for decorative and hard chrome electroplating baths. As a chemically defined chromium oxide, it is classified under tariff item 2819.10.00, meeting Chapter 28's criteria for inorganic compounds.
2819.10.00Industrial Chromium Trioxide Granules
Granular chromium trioxide for industrial oxidation processes and wood preservation. This chemically defined inorganic compound is classified under tariff item 2819.10.00 as chromium trioxide, consistent with Chapter 28's scope.
2819.10.00Lab-Grade Chromium Trioxide Solution Precursor
Dry lab-grade chromium trioxide powder intended for dissolution into chromic acid solutions. It is classified under tariff item 2819.10.00 as pure chromium trioxide, not as a solution or preparation, per Chapter 28's rules.
2819.10.00Technical Grade Chromium Trioxide Flakes
Technical-grade chromium trioxide in red flake form, used in anodizing aluminum and pigment manufacturing. As a pure chromium trioxide compound, it is classified under tariff item 2819.10.00, meeting Chapter 28's definition of a separate chemically defined compound.
2819.90.00Chrome Green Pigment (Chromium Oxide Base)
Chrome green pigment composed primarily of chromium(III) oxide blended with other inorganic substances for durable green colouration. The chromium oxide component falls under this tariff item as an 'other' chromium oxide, provided the blend does not render it a separate pigment preparation of Chapter 32.
2819.90.00Chromic Acid Anhydride (Chromium Trioxide)
Chromium trioxide (CrO3), also known as chromic anhydride, is a dark red crystalline compound used in chrome plating and as an oxidizing agent. It is a chromium oxide not elsewhere specified, falling under this tariff item as 'other'.
2819.90.00Chromium Dioxide (Magnetic Pigment Grade)
Chromium dioxide (CrO2) in magnetic pigment grade, used for audio and video tapes. As a chemically defined chromium oxide not specifically listed elsewhere, it is classified under this tariff item as 'other'.
2819.90.00Chromium Hydroxide Gel
Amorphous chromium(III) hydroxide gel used as a precursor for catalysts and ceramics. Chromium hydroxides are covered by this heading, and the gel form is included as it is a chemically defined compound, even in hydrated or colloidal state.
2819.90.00Chromium(III) Oxide Powder
Chromium(III) oxide powder (Cr2O3), a green inorganic compound used as a pigment in paints, ceramics, and glass colouring. It is a chemically defined chromium oxide falling under this tariff item as 'other'.
2819.90.00Chromium Oxide Sputtering Target
High-purity chromium oxide sputtering targets used for thin-film deposition in semiconductor manufacturing. These are chemically defined chromium oxides in unworked form, falling under this tariff item as 'other'.
2819.90.00High Purity Chromium Oxide for LEDs
Ultra-high purity chromium oxide (99.999% Cr2O3) used for doping optical materials in LED manufacturing. As a pure, chemically defined chromium oxide, it is classified under this tariff item before any processing into optical elements.
2819.90.00Hydrated Chromium Oxide
Hydrated chromium oxide (Cr2O3·nH2O), a green pigment used in artistic paints and cosmetics. As a chromium hydroxide, it falls under this tariff item, provided it is not mixed with other substances that would change its classification.
2819.90.00Nano Chromium Oxide Powder
Nanoparticle chromium(III) oxide powder (20-50 nm) used in advanced ceramics and catalysts. Particle size does not affect classification as a chemically defined inorganic compound, so it falls under this tariff item as 'other'.
2819.90.00Viridian Chromium Oxide Pigment
Viridian chromium oxide pigment, a hydrated chromium(III) oxide (Cr2O3·2H2O) used in high-quality artists' oil paints. As a chemically defined chromium hydroxide, it falls under this tariff item when in pure pigment form.