Products Description of Boron Trifluoride Diethyl Etherate CAS#109-63-7
Boron trifluoride is a key Lewis acid catalyst used in organic synthesis, especially in polymerization, hydrocarbonization, alkylation, and isomerization reactions. Since the gas form is tricky to handle, it's usually combined with polar oxygen- or nitrogen-containing compounds to make stable complexes that can be adjusted to fit different reaction needs. The most popular one is boron trifluoride etherate. It can also form complexes with thioethers, ketones, anisole, phenol, amines, and lots of their derivatives.
Boron trifluoride diethyl etherate Chemical Properties
| Melting point | −58 °C(lit.) |
| Boiling point | 126-129 °C(lit.) |
| Density | 1.15 g/mL(lit.) |
| Vapor density | 4.9 (vs air) |
| Vapor pressure | 4.2 mm Hg ( 20 °C) |
| Refractive index | n20/D 1.344(lit.) |
| Fp | 118 °F |
| Storage temp. | Store below +30°C. |
| Solubility | Miscible with ether and alcohol. |
| Form | liquid |
| Specific Gravity | 1.126 (20/4℃) |
| Color | brown |
| Explosive limit | 5.1-18.2%(V) |
| Water Solubility | Reacts |
| Sensitive | Moisture Sensitive |
| Hydrolytic Sensitivity | 7: reacts slowly with moisture/water |
| Merck | 141,350 |
| BRN | 3909607 |
| Exposure limits | ACGIH: TWA 0.1 ppm; Ceiling 0.7 ppm |
| Stability | Stable. Highly flammable. May form explosive peroxides in contact with air or oxygen. Reacts exothermically with water to form extremely flammable diethyl ether and toxic, corrosive boron trifluoride hydrates. Also incompatible with bases, amines, alkali metals. |
| InChIKey | MZTVMRUDEFSYGQ-UHFFFAOYSA-N |
| CAS DataBase Reference | 109-63-7(CAS DataBase Reference) |
| NIST Chemistry Reference | Boron trifluoride etherate(109-63-7) |
| EPA Substance Registry System | Boron, trifluoro[1,1'-oxybis[ethane]]-, (T-4)- (109-63-7) |
Safety Information
| Hazard Codes | T,C |
| Risk Statements | 10-14-20/22-35-48/23-34-14/15-23-22 |
| Safety Statements | 16-23-26-36/37/39-45-8-28A-43 |
| RIDADR | UN 2604 8/PG 1 |
| WGK Germany | 3 |
| F | 10 |
| Autoignition Temperature | 185 °C DIN 51794 |
| TSCA | Yes |
| HazardClass | 8 |
| PackingGroup | I |
| HS Code | 29319090 |
| Hazardous Substances Data | 109-63-7(Hazardous Substances Data) |
Product Application of Boron Trifluoride Etherate CAS#109-63-7
This material is widely used as a catalyst for cationic polymerization and in making butadiene rubber and polyformaldehyde. It's also a key ingredient for boron–hydrogen high-energy fuels and for extracting boron isotopes. In chemical synthesis, it's a common catalyst, and it's also an important starting material for producing boron–hydrogen high-energy dyes and isolating the boron-10 isotope.
