Ethylamine-borontrifluoride CAS#75-23-0
Effective Latent Curing Agent: Boron trifluoride-ethylamine complex serves as a latent curing agent for epoxy resins, enabling controlled initiation of the curing process.
Heat-Activated Curing Mechanism: Strong coordination between boron trifluoride and the amine keeps the amine inactive until heating releases boron trifluoride, allowing curing to begin.
Low Recommended Addition Level: It is typically used at a concentration of approximately 1% by weight of the epoxy resin, supporting low-dose formulation requirements.
Defined Physical Properties: This complex is a white to pale yellow or light orange solid, with a reported melting point of 85–89 °C and a boiling point of 148 °C at 1 mmHg.
Products Description of Boron Trifluoride-Ethylamine Complex
Boron trifluoride-ethylamine complex is a latent curing agent used in epoxy resin systems. The strong coordination between boron trifluoride and the amine keeps the amine inactive until heat is applied. Upon heating, boron trifluoride is released, enabling the amine to initiate the curing reaction.
The complex is typically added at approximately 1% by weight of the epoxy resin. Due to its strong hygroscopic properties, it should be weighed promptly to minimize moisture absorption. It appears as a white to pale yellow or light orange solid, with a literature-reported melting point of 85–89 °C and a boiling point of 148 °C at 1 mmHg.
Ethylamine-borontrifluoride Chemical Properties
| Melting point | 85-89 °C(lit.) |
| Boiling point | 148°C/1mmHg(lit.) |
| density | 1,38 g/cm3 |
| Fp | 157°C |
| storage temp. | 2-8°C |
| form | solid |
| color | White to Light yellow |
| PH | pH(50g/l, 25℃) : 4.0～5.6 |
| Water Solubility | Reacts with water. |
| Sensitive | Moisture Sensitive |
| BRN | 3672802 |
| Exposure limits | ACGIH: TWA 2.5 mg/m3 |
| NIOSH: IDLH 250 mg/m3 | |
| InChI | InChI=1S/C2H6BF3N/c1-2-7-3(4,5)6/h7H,2H2,1H3 |
| InChIKey | RXVOLIRPZMDKJC-UHFFFAOYSA-N |
| SMILES | N(CC)[B+3]([F-])([F-])[F-] |
| CAS DataBase Reference | 75-23-0(CAS DataBase Reference) |
| EPA Substance Registry System | Boron, (ethanamine)trifluoro-, (T-4)- (75-23-0) |
| Hazard Codes | C |
| Risk Statements | 34-37 |
| Safety Statements | 26-36/37/39-45 |
| RIDADR | UN 3261 8/PG 2 |
| WGK Germany | 3 |
| RTECS | KQ8060000 |
| TSCA | Yes |
| HS Code | 3822.19.0080 |
| HazardClass | 6.1 |
| PackingGroup | III |
| Toxicity | LDLo intraperitoneal in mouse: 422mg/kg |
Product Application of Ethylamine-Boron Trifluoride CAS#75-23-0
Ethylamine-boron trifluoride is primarily used as a latent curing agent in epoxy resin formulations.
