Chlorodifluoroethanes (HCFC-142, 142b)
Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. > Halogenated derivatives of acyclic hydrocarbons containing two or more different halogens: > Chlorodifluoroethanes (HCFC-142, 142b) > Chlorodifluoroethanes (HCFC-142, 142b) > Chlorodifluoroethanes (HCFC-142, 142b)
Duty Rate (from China)
Products classified under Tariff item 2903.74
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.
2903.74.00Chlorodifluoroethane 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.
2903.74.00DuPont 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.
2903.74.00HCFC-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.
2903.74.00HCFC-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.
2903.74.00HCFC-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.