HS Code for Ethylene oxide mixtures

Ethylene oxide mixtures are classified under HS code 3824.81. This classification is governed by Chapter 38, which covers miscellaneous chemical products, and specifically Heading 3824, which includes chemical products and preparations of the chemical or allied industries not elsewhere specified. Subheading 3824.81 is specifically designated for mixtures containing oxirane (ethylene oxide). This classification is reinforced by Subheading Note 3 to Chapter 38, which identifies specific hazardous or regulated substances that must be classified within the 3824.81 to 3824.88 range. Because pure ethylene oxide is extremely flammable and explosive, it is commonly mixed with non-flammable carrier gases such as carbon dioxide or hydrofluorocarbons (HFCs) to facilitate safe handling during medical or industrial sterilization processes. Once the ethylene oxide is no longer a separate chemically defined compound but is instead part of a functional preparation, it exits Chapter 29 and enters Chapter 38.

Products Included

• Ethylene oxide and carbon dioxide mixtures
• Ethylene oxide and hydrofluorocarbon (HFC) mixtures
• Sterilizing gas mixtures containing oxirane
• Fumigant preparations containing ethylene oxide

Common Misclassification

The most common misclassification occurs with HS code 2910.10, which is reserved for pure ethylene oxide. Importers often fail to distinguish between the pure gas and a stabilized mixture. Another common error involves HS code 3808.94, which covers disinfectants. While ethylene oxide mixtures are used for disinfection, the specific mention of oxirane mixtures in 3824.81 takes precedence over the more general disinfectant category in 3808. Additionally, mixtures containing other epoxides might be wrongly placed here; 3824.81 is strictly for those containing oxirane.

FAQ

What is the HS code for Ethylene oxide mixtures?

The HS code for mixtures containing ethylene oxide (oxirane) is 3824.81, located within the miscellaneous chemical products chapter.

Why are these mixtures not in Chapter 29?

Chapter 29 is generally restricted to separate chemically defined compounds. Because these products are mixtures of ethylene oxide with other gases for specific applications, they are classified as chemical preparations in Chapter 38.