Boron Trifluoride Methanol Complex

CAS No.: 2802-68-8

Catalogue ID: GTC-256

Boron Trifluoride Methanol Complex, CAS 2802-68-8. Source-derived identification, physical data and applications are provided for catalogue reference; request the current specification, COA and SDS for the required grade.

Catalogue aliases / related identifiers

Trifluoroborane dimethanol complex; Methanol-boron trifluoride complex; Boron fluoride-methanol adduct; Boron trifluoride-dimethanol adduct; Boron, (dimethanol)trifluoro-, (T-4)-; BF3-Methanol

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Supplied catalogue source: GTC-256 · Page 88

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The information below is a structured migration from the supplied catalogue snapshot. It is not a current product specification, COA or SDS. Confirm the actual supplier, grade, batch documents, classification, packing and destination requirements for your enquiry.

Basic Information of Boron Trifluoride Methanol Complex

Boron Trifluoride Methanol Complex (CAS No. 2802-68-8) is characterized by its significant properties:

CAS No.:	2802-68-8
EC No.:	220-543-9
Linear Formula:	C₂H₈BF₃O₂
Molecular Weight:	131.89
Appearance:	Colorless to light orange to yellow clear liquid
Melting point:	-20 °C
Boiling point:	58-60°C 4mm
Density:	1.22-1.25 g/mL at 20 °C
Solubility	Miscible with alcohols, ethers, esters; reacts exothermically with water.
Flash Point:	64 °C
Nature:	Strong Lewis acid.
RIDADR:	UN 2924 6.1/PG 3
Chemical Structure:

These attributes make it a preferred catalytic system in processes where a controlled acidic environment is required.

Main Functions and Applications of Boron Trifluoride Methanol Complex

As an Esterification Reagent for Acids: The boron trifluoride methanol complex serves as an effective acidic reagent to promote esterification reactions, particularly for the synthesis of methyl esters.
For the Selective Cleavage of Ethers: In organic synthesis, it can be used for the selective cleavage of various ether linkages under specific conditions, offering a valuable tool for complex molecule synthesis.
Deconjugation of Acetylamides in Anthocyanin Dyes: Boron trifluoride methanol complexes can also be utilized in specialized applications, such as for the deconjugation of acetylamides in anthocyanin dyes, yielding products with free amino groups.
Lewis Acid and Catalyst in Organic Synthesis: Boron trifluoride methanol solution is commonly used as a highly effective Lewis acid catalyst in organic chemistry, particularly in promoting and accelerating a wide range of organic reactions beyond esterification.
Olefin Polymerization Field: This complex plays a significant role in the olefin polymerization field. For example, it is used as a key catalyst in the synthesis of polyalphaolefins (PAO), which serve as crucial lubricating oil base stocks.

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Hazards Classification

GHS Classification: Skin Corr. / Eye Damage (GHS05), Acute Toxicity — oral/inhalation/dermal (GHS06), Specific target organ toxicity — single exposure (GHS08), Flammable Liquid (GHS02)
Hazard Statements: Causes severe skin burns and eye damage (H314); toxic if swallowed, inhaled or in contact with skin (H301, H331, H311); causes damage to organs (H370); highly flammable or combustible depending on concentration (H225 / combustible liquid statement).
UN Number: UN 2924
Hazard Class: 8 (Corrosive substances); Subsidiary hazard class: 6.1 (Toxic substances)
Packing Group: I