1,1-Difluoroethylene
1,1-Difluoroethylene (CAS: 75-38-7), also known as Vinylidene fluoride, is an organofluorine compound with the chemical formula H₂C=CF₂ and a molecular weight of 64.03 g/mol. This highly reactive gaseous monomer is primarily used as a building block in the synthesis of fluoropolymers, particularly polyvinylidene fluoride (PVDF). Its unique structure allows for the creation of materials with excellent chemical resistance, thermal stability, and electrical properties.
- IUPAC
- Vinylidene fluoride
- Synonyms
- H2C=CF2Vinylidene fluoride
Fluoropolymer Synthesis
1,1-Difluoroethylene is the essential monomer for producing polyvinylidene fluoride (PVDF), a high-performance fluoroplastic. PVDF is valued for its exceptional resistance to chemicals, UV radiation, and high temperatures, making it suitable for demanding applications.
Chemical Intermediate
As a reactive organofluorine compound, it serves as an intermediate in the synthesis of various fluorinated organic molecules. These can be used in specialized chemical research and development.
Specialty Gas Applications
In its gaseous form, 1,1-Difluoroethylene is supplied as a specialty gas for specific industrial processes and research requiring a controlled source of this unique fluorinated olefin.
| Molecular weight | 64.03 |
|---|---|
| Linear formula | H2C=CF2 |
| Assay | ≥99% |
| Boiling point | −83 °C(lit.) |
| Vapour pressure | 518 psi (21 °C) |
| Vapour density | 2.2 (vs air) |
| Autoignition temp | 1184 °F |
| Melting point | −144 °C(lit.) |
Hazard statements
- H220Extremely flammable gas
- H280Contains gas under pressure; may explode if heated
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P410Protect from sunlight
| Protective equipment | Eyeshields, Faceshields, Gloves, half-mask respirator (EU), half-mask respirator (US), multi-purpose combination respirator cartridge (US) |
|---|---|
| Transport (UN / ADR) | UN 1959 2.1 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F+ |
| Risk statements (R) | 12 |
| Safety statements (S) | 7/9-16 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 1,1-Difluoroethylene used for?
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1,1-Difluoroethylene is primarily used as a monomer for the synthesis of polyvinylidene fluoride (PVDF) and as an intermediate in the production of other fluorinated organic compounds.
What is the CAS number and formula for 1,1-Difluoroethylene?
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The CAS number is 75-38-7 and the chemical formula is H₂C=CF₂.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1,1-Difluoroethylene with a minimum purity of ≥99%. This product is not represented as USP, BP, EP, or other pharmacopoeia grades.
How is 1,1-Difluoroethylene handled and shipped?
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1,1-Difluoroethylene is an extremely flammable gas with hazards including gas under pressure. It requires appropriate handling with safety equipment and is shipped as per UN 1959, Class 2.1 regulations.
Is 1,1-Difluoroethylene a controlled substance?
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The provided data does not indicate that 1,1-Difluoroethylene is a controlled substance.
How can I request a quote or sample for 1,1-Difluoroethylene?
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Please contact our sales team via the website or direct inquiry to request a quote or sample for 1,1-Difluoroethylene.
What are the main hazards associated with 1,1-Difluoroethylene?
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1,1-Difluoroethylene is classified as extremely flammable (H220) and contains gas under pressure (H280), requiring careful handling to prevent fire and explosion risks.
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