Boron Trifluoride Dibutyl Etherate

Basic Information of Boron Trifluoride Dibutyl Etherate

Boron Trifluoride Dibutyl Etherate (CAS No. 593-04-4) is characterized by the following properties:

CAS No.:	593-04-4
EC No.:	209-783-5
Linear Formula:	C₈H₁₈BF₃O
Molecular Weight:	198.03
Appearance:	Pale yellow to brown liquid
Density:	0.959 g/mL at 25 °C(lit.)
Solubility	Soluble in many organic solvents; reacts with water and protic solvents.
Flash Point:	70 °C
Nature:	Strong Lewis acid.
RIDADR:	UN 2922 or UN 3264 8(6.1)/PG 2(3)
Chemical Structure:

These attributes make it a preferred catalyst in processes requiring efficient and controlled Lewis acid activity.

Main Functions and Applications of Boron Trifluoride Dibutyl Etherate

1. Synthesis of Polyformaldehyde Resin: Boron trifluoride dibutyl etherate is widely employed as a highly effective catalyst for the synthesis of polyformaldehyde resin, also known as polyoxymethylene (POM). It drives the cationic polymerization of formaldehyde or its cyclic oligomers (like trioxane) to produce this important engineering plastic.

2. Preparation of Ethylene-Oxygen Methylene Copolymer: This complex also plays a crucial role as a catalyst in the preparation of ethylene-oxygen methylene copolymers, and more broadly, in the cationic ring-opening polymerization of cyclic ethers like ethylene oxide. These copolymers find applications in various specialty polymers and materials.

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Hazards Classification

• GHS Classification: Acute Toxicity (GHS06), Corrosive (GHS05), Flammable Liquid (GHS02)

• Hazard Statements: Toxic if swallowed, in contact with skin or if inhaled; Causes severe skin burns and eye damage; Combustible liquid.

• UN Number: UN 2922 or UN 3264

• Hazard Class: 8 (Corrosive Substances)

• Subsidiary Hazard Class (for UN 2922): 6.1 (Toxic Substances)

• Packing Group: II or III