Chromic 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. Classified under HTS 2819.90.00.00 as a chromium oxide not covered by other subheadings in heading 2819.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | 3.7% | +35.0% | 38.7% |
| 🇲🇽Mexico | 3.7% | +10.0% | 13.7% |
| 🇨🇦Canada | 3.7% | +10.0% | 13.7% |
| 🇩🇪Germany | 3.7% | +10.0% | 13.7% |
| 🇯🇵Japan | 3.7% | +10.0% | 13.7% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If when dissolved or in aqueous solution
Chromium trioxide solutions are classified as chromates or dichromates under heading 2821 for metal salts.
If as a pickling preparation for metal surfaces
Prepared mixtures for metal treatment containing chromium trioxide fall under heading 3810.
If in etching or electroplating preparations
Formulations for industrial processes are classified as chemical preparations in 3824.
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Import Tips & Compliance
• Comply with EPA hazardous waste regulations and TSCA reporting for chromium(VI) compounds due to carcinogenicity
• Provide certificates of analysis confirming Cr(VI) content to avoid reclassification as hazardous waste
• Ensure proper UN packaging and labeling for corrosive solids (UN 1463) during transport
Related Products under HTS 2819.90.00.00
Chromium(III) Oxide Powder
Chromium(III) oxide (Cr2O3) is a green-colored inorganic compound used as a pigment in paints, ceramics, and glass coloring. It falls under HTS 2819.90.00.00 as one of the 'other' chromium oxides and hydroxides not specified elsewhere in heading 2819.
Hydrated Chromium Oxide
Hydrated chromium oxide (Cr2O3·nH2O) is a green pigment used in artistic paints and cosmetics. It qualifies under HTS 2819.90.00.00 as a chromium hydroxide per the heading scope for chromium oxides and hydroxides.
Chromium Dioxide (Magnetic Pigment Grade)
Chromium dioxide (CrO2) used as a magnetic recording material in audio/video tapes. Falls under HTS 2819.90.00.00 as an 'other' chromium oxide compound.
Viridian Chromium Oxide Pigment
Viridian is a hydrated chromium(III) oxide pigment (Cr2O3·2H2O) used in high-quality artists' oil paints. Classified under HTS 2819.90.00.00 as a chemically defined chromium hydroxide.
Chrome Green Pigment (Chromium Oxide Base)
Chrome green pigment composed primarily of chromium(III) oxide blended with other inorganics for durable green color. HTS 2819.90.00.00 applies to the pure chromium oxide component.
Chromium Oxide Sputtering Target
High-purity chromium oxide targets used for thin-film deposition in semiconductor manufacturing. Classified under HTS 2819.90.00.00 as chemically defined chromium oxide in unworked form.