HS Code for Soda ash

Soda ash, chemically known as disodium carbonate, is classified under HS code 283620. This code is situated within Chapter 28, which covers inorganic chemicals and precious metal compounds. Heading 2836 is dedicated to carbonates, peroxocarbonates (percarbonates), and commercial ammonium carbonate. Soda ash is a vital industrial chemical used in glass manufacturing, detergents, and chemical metallurgy. The classification 2836.20 specifically identifies disodium carbonate in its anhydrous form. Because it is a well-defined inorganic chemical compound, it remains in Chapter 28 regardless of its industrial application, provided it has not been mixed with other ingredients to form a specific preparation. The classification covers both "light" soda ash (lower bulk density) and "dense" soda ash (higher bulk density), as these are physical variations of the same chemical compound. The purity of the product generally does not affect its classification under this heading, provided it remains a separate chemically defined compound as per the notes to Chapter 28.

Products Included

• Light soda ash
• Dense soda ash
• Anhydrous sodium carbonate
• Technical grade disodium carbonate
• Calcined soda

Common Misclassification

Soda ash (2836.20) is often confused with sodium hydrogencarbonate (baking soda), which is classified under HS code 2836.30. It is also sometimes misclassified as sodium hydroxide (caustic soda) under 2815.11 or 2815.12. Another error involves natural sodium carbonates found in mineral form, which may fall under Chapter 25 (specifically 2530.90) if they have not been chemically processed.

FAQ

What is the HS code for Soda ash?

The HS code for soda ash (disodium carbonate) is 283620.

Is washing soda the same as soda ash?

Washing soda is the decahydrate form of sodium carbonate. While it is chemically related, soda ash usually refers to the anhydrous form, but both are typically classified under 283620.