Trifluoromethane (HFC-23) Refrigerant Gas
Pure trifluoromethane, also known as HFC-23, is a saturated fluorinated derivative of acyclic hydrocarbons used primarily as a high-temperature refrigerant in industrial cooling systems. It falls under HTS 2903.41.10.00 due to its chemical structure as CHF3, matching the specific subheading for trifluoromethane. This colorless, non-flammable gas is supplied in high-pressure steel cylinders for specialized refrigeration applications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If blended with other HFCs for commercial refrigerant mixtures
Mixtures of fluorinated hydrocarbons not purely trifluoromethane are classified under mixtures of Chapter 38 rather than pure compounds of Chapter 29.
If containing trace hydrocarbon impurities exceeding purity thresholds
Products not meeting 'separate chemically defined' criteria due to impurities may shift to other fluorinated acyclic hydrocarbons in 2903.39.
If imported in liquefied form without chemical purity documentation
Liquefied gases primarily of petroleum gases fall under Chapter 27 if not qualifying as separate organic compounds per Chapter 29 note 1(a).
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Import Tips & Compliance
• Verify compliance with EPA regulations under the AIM Act for HFC imports, including mandatory reporting of production and consumption allowances
• Ensure cylinders meet DOT pressure vessel standards (49 CFR) and include Safety Data Sheets (SDS) detailing GWP of 14,700
• Avoid misclassification as a CFC by confirming zero chlorine/ bromine content; common pitfall is confusing with Chapter 27 hydrocarbons
Related Products under HTS 2903.41.10.00
HFC-23 Semiconductor Etch Gas
Ultra-high purity trifluoromethane (HFC-23) used in plasma etching processes for semiconductor manufacturing, particularly for tungsten and oxide etch applications. Classified in HTS 2903.41.10.00 as a separate chemically defined fluorinated hydrocarbon meeting Chapter 29 heading requirements.
HFC-23 Fire Suppressant Agent
Trifluoromethane (HFC-23) formulated as a clean fire extinguishing agent for total flooding systems in data centers and electronics manufacturing. Classified under HTS 2903.41.10.00 as it is a pure saturated fluorinated acyclic hydrocarbon (CHF3) per Chapter 29 definitions. This high-GWP gas leaves no residue and is effective against Class B fires.
Medical-Grade HFC-23 Calibration Gas
High-purity trifluoromethane (HFC-23) diluted in balance gas for calibrating medical gas analyzers and environmental monitoring equipment. Falls under HTS 2903.41.10.00 as a chemically defined organic compound per Chapter 29 note 1(a), with dilution allowed under note 1(d) if for safety/transport.
HFC-23 Process Byproduct Recovery Gas
Recovered and purified trifluoromethane (HFC-23) from HCFC-22 manufacturing processes, meeting commercial purity standards for refrigerant or feedstock reuse. HTS 2903.41.10.00 applies as it remains a chemically defined organic compound regardless of recovery source.