HS Code for Chromium hydroxide

Chromium hydroxide is classified under HS code 2819.90 because it is an inorganic chemical compound consisting of chromium and hydroxyl groups. Within the Harmonized System, Chapter 28 is dedicated to inorganic chemicals, including precious metal compounds and radioactive elements. Specifically, heading 2819 covers chromium oxides and hydroxides. While chromium trioxide is specifically isolated under subheading 2819.10 due to its high industrial volume and specific chemical properties, all other chromium oxides and hydroxides, including chromium (III) hydroxide, fall under the residual subheading 2819.90. This classification is determined by the chemical composition of the substance rather than its intended industrial application, such as in tanning or pigment production. The substance must be a separate chemically defined element or compound to remain within Chapter 28; if it were mixed with other materials to form a prepared pigment, it would shift to Chapter 32.

Products Included

• Chromium (III) hydroxide
• Chromic hydroxide
• Hydrated chromic oxide
• Guignet's green (in its unmixed, pure chemical form)
• Chromic acid (in certain hydrated forms not classified as trioxide)

Common Misclassification

Chromium hydroxide is frequently misclassified under HS code 2819.10, which is strictly reserved for chromium trioxide (chromic anhydride). Another common error involves HS code 3206.20, which covers pigments and preparations based on chromium compounds. If the chromium hydroxide has been further processed or mixed with extenders and binders to function as a finished paint or dye, it must be moved to Chapter 32. Additionally, chromium ores are classified under 2610.00 and should not be confused with the refined chemical hydroxide.

FAQ

What is the HS code for chromium hydroxide?

The HS code for chromium hydroxide is 2819.90, which covers chromium oxides and hydroxides other than chromium trioxide.

Is chromium hydroxide classified differently if used for leather tanning?

No, the pure chemical compound remains under 2819.90. However, if it is sold as a prepared tanning substance mixed with other chemicals, it may fall under heading 3202.