Reference GHS classification: Flammable liquid Category 3; acute inhalation toxicity Category 4; skin corrosion Category 1B; serious eye damage Category 1; specific target organ toxicity, repeated exposure Category 1.
Hazard summary: The liquid and its vapors present a fire hazard. Exposure can severely burn skin and damage eyes. Inhalation is harmful, and prolonged or repeated exposure can damage organs.
Handling and storage: Use appropriate ventilation, ignition controls, and protective equipment. Keep suitable containers tightly closed in a dry, well-ventilated location away from heat and ignition sources. Prevent contact with water and follow the supplied-grade SDS for incompatibilities and storage conditions.
Transport reference: UN 2604, BORON TRIFLUORIDE DIETHYL ETHERATE; Class 8 (corrosive), subsidiary risk 3 (flammable liquid), Packing Group I. Confirm the transport documentation and carrier requirements for the shipment.
Documentation before ordering: Request the current supplied-grade SDS, relevant batch COA, and applicable packaging and dangerous goods transport information.
Boron Trifluoride Diethyl Etherate Complex CAS 109-63-7
Boron Trifluoride Diethyl Etherate CAS 109-63-7 from Aure Chemical
Boron trifluoride diethyl etherate, also known as boron trifluoride etherate or BF₃·OEt₂ (CAS 109-63-7), is a coordination complex of boron trifluoride with diethyl ether. This liquid Lewis acid reagent is used in organic synthesis and selected cationic polymerization processes. Aure Chemical supports China chemical sourcing, product specification review, quality documentation, and export coordination for this etherate complex.
The reference grade is specified by BF₃ content, moisture, appearance, boiling point, and a reported physical property at 20 °C. BF₃ content measures the BF₃ component of the etherate complex; the COA does not provide a separate overall complex purity assay.
Basic Information of Boron Trifluoride Diethyl Etherate
The product identity and reported grade information below apply to the diethyl ether complex. The corresponding analytical requirements and reference results are shown in the Reference Quality Analysis section.
| CAS No. | 109-63-7 |
|---|---|
| EC No. | 203-689-8 |
| Molecular Formula | C₄H₁₀BF₃O |
| Complex Formula | BF₃·O(C₂H₅)₂ |
| Molecular Weight | 141.93 g/mol |
| Appearance | Colorless to light yellow liquid |
| Reported BF₃ Content Requirement | ≥47% |
| Reported Boiling Point Range | 125–126 °C (pressure and method not stated in the COA) |
| Chemical Function | Liquid Lewis acid reagent and BF₃ donor complex |
| Water Reactivity | Moisture-sensitive; reacts with water |
| Transport Reference | UN 2604, BORON TRIFLUORIDE DIETHYL ETHERATE, Class 8, subsidiary risk 3, Packing Group I |
| Chemical Structure |  |
Confirm BF₃ content and moisture requirements against the intended reaction or formulation. Packaging, handling, storage, and transport arrangements should be reviewed using the current supplied-grade SDS.
Reference Quality Analysis
The following quality parameters provide a technical reference for evaluating boron trifluoride diethyl etherate, including the BF₃ component assay, moisture, appearance, boiling point, and the physical property reported at 20 °C. The results represent one reference batch.
| Test Item | Reported Specification | Reference Result |
|---|---|---|
| Appearance | Light yellow to colorless liquid | Light yellow liquid |
| BF₃ content | ≥47% | 47.69% |
| Moisture | ≤0.2% | 0.0533% |
| Boiling point | 125–126 °C | 126 °C |
| Specific gravity at 20 °C (COA wording) | 1.120–1.140 g/cm³ | 1.125 g/cm³ |
The COA labels the 20 °C property as “specific gravity” while giving g/cm³, a density unit. The original values and unit are retained here. Confirm whether the intended parameter is density or dimensionless relative density before agreeing a purchase specification.
Analytical methods, the basis of the reported percentages, and the boiling point measurement pressure are not stated in the COA.
These values are provided for preliminary technical evaluation and do not establish guaranteed specifications for every shipment. Confirm the applicable grade, BF₃ content, moisture limit, and other agreed requirements with Aure Chemical, and request the relevant batch-specific Certificate of Analysis (COA) before ordering.
Primary Functions and Applications of Boron Trifluoride Diethyl Etherate
Lewis acid reagent in organic synthesis: Used in selected pharmaceutical intermediate, agrochemical intermediate, and fine chemical synthesis routes. Applications include:
Reactivity and selectivity depend on the substrate, solvent, reagent loading, and reaction conditions. BF₃ content and moisture should be evaluated against the intended process.
Friedel–Crafts alkylation and acylation reactions.
Selected carbon–carbon bond-forming reactions, including Mukaiyama aldol additions and Diels–Alder reactions.
Selected esterification and protecting-group transformations.
Rearrangement, isomerization, dehydration, and condensation reactions.
Polymerization catalyst systems: Used in selected cationic polymerization processes, including trioxane-based polyoxymethylene synthesis and certain polyether preparations. Catalyst formulation and moisture tolerance depend on the monomer system and process design.
Borane and organoboron chemistry: Serves as a BF₃-containing reagent in selected borane-related and organoboron synthesis routes. These uses require process-specific review of reagent quality, reaction compatibility, and handling controls.
Aure Chemical: Sourcing and Export Support
Aure Chemical is a chemical trading and export supply business supporting specification review and supplier coordination for boron trifluoride diethyl etherate.
Product specification review: We support review of BF₃ content, moisture, reported physical properties, and any additional purchaser requirements using available supplier documentation.
Quality documentation: Available batch COA, product SDS, and technical information can be requested before order confirmation. Additional analytical or regulatory documentation requirements are subject to confirmation.
China chemical sourcing and supplier coordination: Availability, order quantity, lead time, and packaging options are reviewed for the agreed product specification.
Packaging and international export logistics: Packaging compatibility, labeling, dangerous goods documentation, and shipping feasibility are reviewed according to the product, order quantity, route, carrier acceptance, and destination requirements.
Contact Aure Chemical with your required BF₃ content, moisture limit, quantity, intended application, and delivery destination for a sourcing review.
Safety, Handling & Documentation
The following summary is based on published SDS references for boron trifluoride diethyl etherate. Obtain the current SDS for the exact supplied grade and destination jurisdiction to confirm classification, labeling, protective measures, storage, and transport requirements.
Pictograms reflect the reference hazard summary. The current supplied-grade SDS determines the applicable product label.
Packaging
200 L steel drum
Final packaging, capacity and net weight are confirmed in the quotation and order.
