HS Code for Citric acid salts

HS code 2918.15 is designated for the salts and esters of citric acid. This classification is found within Chapter 29 (Organic Chemicals), under heading 2918, which deals with carboxylic acids containing additional oxygen functions. While citric acid itself is 2918.14, its derivatives—formed when the acidic hydrogen is replaced by a metal or an organic group—are grouped in 2918.15. This includes a wide range of compounds used as acidity regulators, emulsifiers, and stabilizers. The classification is strictly based on the chemical identity of the substance as a salt or ester of the parent citric acid. These compounds must be separate chemically defined substances to remain in Chapter 29. If they are part of a complex mixture or prepared for a specific end-use like a medicine, the classification may shift to other chapters. The distinction between the acid and its salts is critical for regulatory compliance, as the physical properties and industrial applications of citrates differ significantly from the base acid.

Products Included

• Sodium citrate, including monosodium, disodium, and trisodium forms
• Potassium citrate used as a food additive or buffering agent
• Calcium citrate used in dietary supplements and food fortification
• Magnesium citrate used in industrial and pharmaceutical applications
• Triethyl citrate and tributyl citrate, which are esters of citric acid

Common Misclassification

The most common error is classifying these salts under 2918.14, which is reserved exclusively for the pure citric acid. Another frequent mistake is using HS code 3004 for citrate supplements. While magnesium or calcium citrates are sold as dietary supplements, they are only classified in Chapter 30 if they meet the specific criteria for medicaments. Otherwise, they may fall under 2106.90 as food preparations. Additionally, esters like triethyl citrate are sometimes confused with plasticizers in Chapter 38, but if they are chemically pure and separate compounds, 2918.15 is the correct heading. Importers must verify the chemical purity to avoid misclassification into prepared chemical mixtures.

FAQ

What is the HS code for Citric acid salts?

The HS code for salts and esters of citric acid, such as sodium or potassium citrate, is 2918.15.

Is sodium citrate classified the same as citric acid?

No, sodium citrate is a salt and is classified under 2918.15, whereas pure citric acid is classified under 2918.14.