HS Code for Sodium carbonate

Sodium carbonate, commonly known as soda ash, is classified under HS code 2836.20. This code is found in Chapter 28 of the Harmonized System, which covers inorganic chemicals. Heading 2836 is reserved for carbonates and peroxocarbonates. Subheading 2836.20 specifically identifies disodium carbonate (Na2CO3). The classification applies to both light and dense soda ash, as these terms refer to the physical bulk density of the product rather than a difference in chemical identity. To be classified under this code, the sodium carbonate must be a separate chemically defined compound, as per Chapter 28, Note 1. This means it must be produced through chemical synthesis (such as the Solvay process) or refined from natural sources to a high degree of purity. Sodium carbonate is a fundamental industrial chemical used extensively in glass manufacturing, detergent production, and chemical processing. Proper classification is critical because of the high volume of international trade in this commodity and its role as a key raw material in numerous industrial sectors.

Products Included

• Light soda ash (low density sodium carbonate)
• Dense soda ash (high density sodium carbonate)
• Washing soda (sodium carbonate decahydrate)
• Synthetic disodium carbonate
• Refined sodium carbonate powder
• Anhydrous sodium carbonate

Common Misclassification

The most frequent misclassification for sodium carbonate (2836.20) is with sodium bicarbonate (2836.30). While they are both sodium carbonates, they have different chemical formulas and uses. Another significant misclassification involves natural sodium carbonate. If the product is a naturally occurring mineral like trona that has not been chemically processed, it should be classified under HS code 2530.90. Additionally, if sodium carbonate is mixed with surfactants and other builders to create a finished laundry detergent, it must be classified under heading 3402 rather than as a pure chemical in Chapter 28.

FAQ

What is the HS code for soda ash?

Soda ash, or disodium carbonate, is classified under HS code 2836.20.

Is there a different HS code for light and dense soda ash?

No, both light and dense soda ash are chemically disodium carbonate and are both classified under HS code 2836.20 regardless of their physical density.