1-Chloro-1,1-Difluoroethane (HCFC-142b) Technical Grade
1-Chloro-1,1-difluoroethane (HCFC-142b) is a hydrochlorofluorocarbon used as a refrigerant, foam-blowing agent, and in specialty cleaning applications. It is a separate chemically defined organic compound of acyclic structure, falling under tariff item 2903.74.00 as a halogenated derivative of ethane containing chlorine and fluorine.
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 contains other halogenated derivatives beyond chlorine and fluorine
Other halogenated derivatives of acyclic hydrocarbons containing two or more different halogens are classified under this heading.
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
• Verify the product is ≥99% pure HCFC-142b and free of stabilizers that could alter classification
• Check if an import permit is required under the Ozone-depleting Substances Regulations, as HCFCs are controlled
• Keep technical data sheets and CAS number documentation for CBSA officers
Related Products under Tariff item 2903.74.00
Chlorodifluoroethane HCFC-142b for Foam Blowing
Chlorodifluoroethane (HCFC-142b) in recovery cylinders for foam blowing is a pure halogenated derivative of ethane. It meets the Chapter 29 criteria for a separate chemically defined compound, even when packaged for industrial use, and is classified under tariff item 2903.74.00.
DuPont Vertrel XF HCFC-142b Specialty Fluid
DuPont Vertrel XF is a high-purity formulation of 1-chloro-1,1-difluoroethane (HCFC-142b) used as a precision cleaning solvent. As a chemically defined organic compound, it falls under tariff item 2903.74.00, provided it is not put up for retail sale as a preparation of another heading.
HCFC-142b 99.99% Electronic Grade
Ultra-high purity HCFC-142b (99.99%) for electronic cleaning is a separate chemically defined organic compound. It is classified under tariff item 2903.74.00 as a halogenated derivative of ethane, regardless of its high purity grade, since Chapter 29 covers compounds whether or not containing impurities.
HCFC-142b Refrigerant Gas
HCFC-142b refrigerant gas is a chlorodifluoroethane used in commercial cooling systems. As a halogenated derivative of acyclic hydrocarbons, it is classified under tariff item 2903.74.00, consistent with Chapter 29's coverage of separate chemically defined organic compounds.
HCFC-142 Refrigerant Blend Component
Pure HCFC-142 for refrigerant blending is a chemically defined chlorodifluoroethane. It is classified under tariff item 2903.74.00 as a halogenated derivative of acyclic hydrocarbons, even when intended for use as a blend component, since Chapter 29 covers the compound itself.