HS Code Subheading

Halogenated derivatives of acyclic hydrocarbons containing two or more different halogens; chlorodifluoroethanes HCFC-142, 142b)

2903.74 Subheading
Section VI — Products of the chemical or allied industries

About HS Code 290374

This HS code covers chlorodifluoroethanes, specifically referring to HCFC-142b. HCFC-142b has been employed as a refrigerant (R-142b), a blowing agent for extruded polystyrene foam, and a crucial feedstock for the production of vinylidene fluoride (VDF), which is a monomer used in high-performance fluoropolymers. Similar to other hydrochlorofluorocarbons, HCFC-142b is subject to phase-out under the Montreal Protocol due to its ozone-depleting potential. Its use as a refrigerant and blowing agent is largely restricted, with its primary remaining application being as a feedstock in chemical synthesis in some regions. Trade involves chemical manufacturers and specialized industrial users, particularly those in the fluoropolymer industry, navigating strict environmental regulations.

Products Under This Code

Chlorodifluoroethane, HCFC-142b, R-142b, blowing agent 142b, feedstock 142b, Genetron 142b

Real World Examples

Honeywell Genetron 142b, Arkema Forane 142b, Chemours Chlorodifluoroethane, Daikin R-142b

Common Misclassification

Often confused with HCFC-141b (2903.73) due to similar names and applications, necessitating precise chemical identification to avoid misclassification.

Products Classified Under 2903.74

HCFC-142b

Related Codes

2903.11 Saturated chlorinated derivatives of acyclic hydrocarbons; chloromethane (methyl chloride) and chloroethane (ethyl chloride) 2903.12 Saturated chlorinated derivatives of acyclic hydrocarbons; dichloromethane (methylene chloride) 2903.13 Saturated chlorinated derivatives of acyclic hydrocarbons; chloroform (trichloromethane) 2903.14 Saturated chlorinated derivatives of acyclic hydrocarbons; carbon tetrachloride 2903.15 Saturated chlorinated derivatives of acyclic hydrocarbons; ethylene dichloride (ISO) (1,2-dichloroethane) 2903.19 Saturated chlorinated derivatives of acyclic hydrocarbons; n.e.c. in item no. 2903.1 2903.21 Unsaturated chlorinated derivatives of acyclic hydrocarbons; vinyl chloride (chloroethylene) 2903.22 Unsaturated chlorinated derivatives of acyclic hydrocarbons; trichloroethylene 2903.23 Unsaturated chlorinated derivatives of acyclic hydrocarbons; tetrachloroethylene (perchloroethylene) 2903.29 Unsaturated chlorinated derivatives of acyclic hydrocarbons; n.e.c. in item no. 2903.2

Industry

This code belongs to the Chemicals industry.

Trade Overview

China is a significant producer, with limited trade for specific industrial feedstock applications, primarily to countries with fluoropolymer industries.

Frequently Asked Questions

What is HS code 290374?

HS code 290374 covers: Halogenated derivatives of acyclic hydrocarbons containing two or more different halogens; chlorodifluoroethanes HCFC-142, 142b). This HS code covers chlorodifluoroethanes, specifically referring to HCFC-142b. HCFC-142b has been employed as a refrigerant (R-142b), a blowing agent for extruded polystyrene foam, and a crucial feedstock for the production of vinylidene fluoride (VDF), which is a monomer used in high-performance fluoropolymers. Similar to other hydrochlorofluorocarbons, HCFC-142b is subject to phase-out under the Montreal Protocol due to its ozone-depleting potential. Its use as a refrigerant and blowing agent is largely restricted, with its primary remaining application being as a feedstock in chemical synthesis in some regions. Trade involves chemical manufacturers and specialized industrial users, particularly those in the fluoropolymer industry, navigating strict environmental regulations.

What products fall under HS code 290374?

Chlorodifluoroethane, HCFC-142b, R-142b, blowing agent 142b, feedstock 142b, Genetron 142b

What are common misclassifications for HS code 290374?

Often confused with HCFC-141b (2903.73) due to similar names and applications, necessitating precise chemical identification to avoid misclassification.

How is HS code 290374 structured?

HS code 290374 is a 6-digit subheading under the Harmonized System. The first 2 digits (29) identify the chapter, digits 3-4 (03) identify the heading, and digits 5-6 (74) specify the subheading. This code is standardized globally by the World Customs Organization.