
Chlorotrifluoroethylene
- Batch-specific specification (COA)
Product Overview
Product Overview
Chlorotrifluoroethylene (CTFE, CAS 79-38-9) is a chlorinated fluorocarbon olefin monomer with the molecular formula C2ClF3 and a molecular weight of 116.47. It is a colorless gas at ambient conditions and has a boiling point of approximately -28.3°C. Its carbon-carbon double bond supports homopolymerization and copolymerization, making CTFE an important feedstock for polychlorotrifluoroethylene (PCTFE), fluorocopolymers, fluoroelastomers, and other specialty fluoromaterials.
Key Applications
- PCTFE Resins: Used to produce polychlorotrifluoroethylene materials with strong barrier properties, chemical resistance, low moisture absorption, and dimensional stability.
- Fluorocopolymers: Copolymerized with ethylene, vinylidene fluoride, and other fluorinated monomers for wire and cable materials, coatings, films, and seals.
- Fluoroelastomers: Used as a comonomer in specialty fluorinated elastomers to support chemical, weathering, and low-temperature performance.
- Fluorinated Intermediates: Applied in the synthesis and development of high-performance fluorochemicals and functional materials.
Product Features
- Clearly identified by CAS 79-38-9 for quality control and supply-chain traceability
- Contains both chlorine and fluorine, enabling distinctive processing, barrier, and chemical-resistance properties in derived polymers
- Suitable for homopolymerization, copolymerization, and fluorochemical synthesis
- Classified as a flammable liquefied gas (UN 1082, hazard class 2.1) and normally transported in dedicated pressure vessels with an inhibitor
- Final specifications, inhibitor system, and packaging are subject to the batch COA, SDS, and supply agreement
Product Advantages
- Combined chlorine and fluorine functionality supports high-barrier, chemically resistant, low-moisture polymer systems
- Compatible with homopolymerization and multiple copolymer routes for tailored fluoromaterial performance
- Applicable to resins, films, coatings, wire and cable compounds, and sealing materials
- Batch COA and SDS documentation can be supplied subject to commercial terms
Reference Standard
| Product Name | Chlorotrifluoroethylene (CTFE) |
|---|---|
| CAS Number | 79-38-9 |
| Molecular Formula | C2ClF3 |
| Molecular Weight | 116.47 |
| Appearance | Colorless gas at ambient conditions; liquefied gas under pressure |
| Boiling Point | Approximately -28.3°C |
| Melting Point | Approximately -154.9°C |
| UN Number | UN 1082 |
| Hazard Class | 2.1 (flammable gas) |
| Quality Standard | Purity, moisture, acidity, and inhibitor content are subject to the batch COA |
Product Uses
- Polychlorotrifluoroethylene (PCTFE) resins and articles
- Fluorocopolymers including ethylene-chlorotrifluoroethylene (ECTFE)
- Fluoroelastomers and specialty fluorinated elastomers
- High-barrier films, chemical-resistant coatings, wire and cable materials, and seals
- Intermediates for fluorinated fine chemicals and functional materials
Product Photos
1Chemical Properties
Chlorotrifluoroethylene
- CAS No.
- 79-38-9
- Appearance
- Colorless gas at ambient conditions; liquefied gas under pressure
- Packing
- Dedicated cylinders or pressure vessels; package size and inhibitor system are subject to the supply agreement.
- Storage Condition
- Store in an approved pressure vessel in a cool, dry, well-ventilated area away from heat, ignition sources, oxidizers, and incompatible materials. Maintain the specified inhibitor system and follow the supplier SDS.
- Matter Classification
- Halogenated hydrocarbon; fluorochemical monomer
- Category
- Fluorochemical Raw Material; Fluorinated Monomer
- UN Number
- UN 1082
- DG Class
- 2.1 (Flammable gas)
- Molecular Formula
- C2ClF3
- Molecular Weight
- 116.47
- Specification
- Batch-specific specification (COA)
- IUPAC
- 1-chloro-1,2,2-trifluoroethene
- PSA
- 0 Ų
- InChIKey
- UUAGAQFQZIEFAH-UHFFFAOYSA-N
- SMILES
- C(=C(F)Cl)(F)F
- Melting Point
- -154.9°C
- Boiling Point
- -28.3°C
- Density
- 1.386 g/mL at 25°C



