Vinylidene fluoride (CAS 75-38-7), also known as 1,1-difluoroethylene, is a colorless fluorinated gas monomer supplied as a technical grade building block that serves as the principal monomer for polyvinylidene fluoride polymers used in coatings, membranes and batteries. Density 0.617 g/cm³ (liquid), boiling point -85.7°C, melting point -144°C, flash point -78°C; slightly soluble in water, soluble in organics; monomer for polymers.
Typical Properties
| Molecular formula | C2H2F2 |
|---|---|
| Molecular weight | 64.03 g/mol |
| Melting point | -144 °C |
| Boiling point | -83 °C |
| Density | 0.6 g/cm³ |
| Flash point | <-60°C |
| HS code | 2903590090 |
| Grades available | Technical Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Vinylidene Fluoride
Applications
Used as monomer for PVDF polymers in coatings, membranes, and batteries; in refrigerants and propellants; in chemical synthesis for fluorinated compounds; in electronics for insulators; in medical devices for biocompatible materials.
Safety & Risks
Highly flammable gas, forms explosive mixtures with air; toxic by inhalation, irritates eyes and respiratory tract. Asphyxiant in high concentrations; avoid heat and oxidizers. Hazard Class 2.1; use PPE, ventilate, no ignition sources.
Packaging
Supplied in pressurized cylinders or tanks with safety valves; store in well-ventilated areas away from heat.