HCFC-141b (1,1-Dichloro-1-fluoroethane)
HCFC-141b (1,1-dichloro-1-fluoroethane) is a hydrochlorofluorocarbon used as a blowing agent in polyurethane foam production and as a solvent for cleaning electronics. It is a halogenated derivative of acyclic hydrocarbons containing both chlorine and fluorine, matching the description of tariff item 2903.73.00. The product is a separate chemically defined compound, meeting the criteria of Chapter 29 Note 1(a).
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the product is not specifically HCFC-141b but another dichlorofluoroethane
Tariff item 2903.73.00 is limited to HCFC-141 and 141b; other dichlorofluoroethanes fall under the residual subheading.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Check if the HCFC-141b is for foam blowing or solvent use, as end-use may affect other regulatory requirements but not the tariff classification
• Ensure compliance with the Ozone-depleting Substances Regulations, including holding a valid permit for import
• Keep records of the product's chemical purity to support classification under this tariff item
Related Products under Tariff item 2903.73.00
1,1-Dichloro-1-fluoroethane (R-141b)
1,1-Dichloro-1-fluoroethane (R-141b) is a separate chemically defined organic compound with the molecular formula CH3CCl2F. It is a halogenated derivative of acyclic hydrocarbons containing two different halogens (chlorine and fluorine), which places it squarely under tariff item 2903.73.00. The product is used in precision cleaning of metal parts and as a foam expansion agent.
Dichlorofluoroethane HCFC-141b Cylinder
Dichlorofluoroethane HCFC-141b packaged in 100 lb recovery cylinders is the same chemical compound as in tariff item 2903.73.00. The packaging for transport does not alter its classification, as the product remains a separate chemically defined organic compound. It is used in industrial foam production and solvent recovery systems.
HCFC-141b Technical Grade 99.9% Pure
High-purity HCFC-141b (99.9%) is supplied for manufacturing insulated shipping containers and building insulation panels. As a separate chemically defined compound with the formula CH3CCl2F, it is a halogenated derivative of acyclic hydrocarbons containing two different halogens. This places it under tariff item 2903.73.00, regardless of its high purity level.
HCFC-141 (Dichlorofluoroethane Blowing Agent)
Technical grade HCFC-141 serves as an industrial blowing agent for rigid polyurethane foams in insulation panels and refrigeration equipment. It is a dichlorofluoroethane isomer, matching the chemical specification of tariff item 2903.73.00. The product is a separate chemically defined compound, even in technical grade, as impurities do not affect classification under Chapter 29 Note 1(a).