Fluoromethane (HFC-41), 1,2-difluoroethane (HFC-152) and 1,1-difluoroethane (HFC-152a)
Halogenated derivatives of hydrocarbons. > Saturated fluorinated derivatives of acyclic hydrocarbons: > Fluoromethane (HFC-41), 1,2-difluoroethane (HFC-152) and 1,1-difluoroethane (HFC-152a) > Fluoromethane (HFC-41), 1,2-difluoroethane (HFC-152) and 1,1-difluoroethane (HFC-152a) > Fluoromethane (HFC-41), 1,2-difluoroethane (HFC-152) and 1,1-difluoroethane (HFC-152a)
Duty Rate (from China)
Products classified under Tariff item 2903.43.00.00
1,1-Difluoroethane (HFC-152a) Fire Suppressant Blend Base
1,1-Difluoroethane (HFC-152a) is a saturated fluorinated derivative of acyclic hydrocarbons, specifically enumerated under tariff item 2903.43.00. It is used as a base component in clean agent fire suppression systems for data centers and electronics, valued for its low toxicity and non-conductive properties. The pure chemical identity of HFC-152a qualifies it for classification under this item.
2903.43.001,1-Difluoroethane (HFC-152a) Refrigerant Gas
1,1-Difluoroethane (HFC-152a) is a saturated fluorinated derivative of acyclic hydrocarbons, explicitly listed under tariff item 2903.43.00. It is widely used as a refrigerant in commercial refrigeration systems and air conditioning units due to its favorable thermodynamic properties. The product is a separate chemically defined compound, meeting the chapter's requirements.
2903.43.001,2-Difluoroethane (HFC-152) Blowing Agent
1,2-Difluoroethane (HFC-152) is a saturated fluorinated derivative of acyclic hydrocarbons, specifically named in tariff item 2903.43.00. It functions as a blowing agent in the production of polyurethane foams for insulation and packaging, providing thermal efficiency. As a separate chemically defined compound, it qualifies for classification under this item.
2903.43.00Fluoromethane (HFC-41) Calibration Gas
Fluoromethane (HFC-41) is a saturated fluorinated derivative of acyclic hydrocarbons, explicitly listed under tariff item 2903.43.00. It is used in trace amounts in nitrogen mixtures as calibration gas for environmental gas analyzers monitoring fluorocarbon emissions. The pure HFC-41 component drives classification, and the product meets the chapter's criteria for a separate chemically defined compound.
2903.43.00Fluoromethane (HFC-41) Industrial Gas
Fluoromethane (HFC-41) is a saturated fluorinated derivative of acyclic hydrocarbons, specifically named in tariff item 2903.43.00. It is a specialty gas used in plasma etching processes for semiconductor manufacturing and as a component in some foam blowing agents. As a separate chemically defined compound, it falls under this item.
2903.43.00HFC-152a Aerosol Propellant
HFC-152a (1,1-difluoroethane) is a saturated fluorinated derivative of acyclic hydrocarbons, explicitly listed under tariff item 2903.43.00. It serves as an environmentally friendly aerosol propellant in personal care products like hairsprays and air fresheners, replacing more harmful CFCs. The pure compound qualifies for classification under this item.
2903.43.00HFC-152a Foam Expansion Agent
HFC-152a (1,1-difluoroethane) is a saturated fluorinated derivative of acyclic hydrocarbons, specifically named in tariff item 2903.43.00. It drives the expansion of polystyrene foams used in packaging and construction insulation. The pure compound offers zero ozone depletion potential and meets the chapter's criteria for classification.
2903.43.00HFC-152a Medical Aerosol Propellant
Pharmaceutical-grade HFC-152a (1,1-difluoroethane) is a saturated fluorinated derivative of acyclic hydrocarbons, explicitly listed under tariff item 2903.43.00. It is employed as a propellant in metered-dose inhalers for asthma medications. The pure compound meets the chapter's requirements for a separate chemically defined compound.
2903.43.00HFC-152 Refrigerant for Chillers
1,2-Difluoroethane (HFC-152) is a saturated fluorinated derivative of acyclic hydrocarbons, specifically named in tariff item 2903.43.00. It is utilized in large-scale industrial chillers for cooling processes in food processing plants. As a separate chemically defined compound, it qualifies for classification under this item.
2903.43.00HFC-41 Semiconductor Etchant Gas
High-purity Fluoromethane (HFC-41) is a saturated fluorinated derivative of acyclic hydrocarbons, explicitly listed under tariff item 2903.43.00. It is critical for plasma etching in microchip fabrication, selectively removing silicon layers. As a separate chemically defined compound, it falls under this item.