Reference GHS classification: Gas under pressure; acute inhalation toxicity Category 2; skin corrosion Category 1A; serious eye damage Category 1; specific target organ toxicity, repeated exposure Category 2. The applicable supplied-grade SDS determines the complete classification and label.
Hazard summary: Inhalation can be fatal. Exposure can severely burn skin and damage eyes, and repeated exposure can harm organs. Heating pressure containers creates a risk of bursting or explosion.
Moisture sensitivity: Contact with water or moisture can produce corrosive acidic products, including hydrogen fluoride. Protect the gas system against moisture ingress and backflow according to the product SDS and approved operating procedures.
Transport reference: UN 1008, BORON TRIFLUORIDE; Division 2.3 (toxic gas), subsidiary risk 8 (corrosive). Packing group: not applicable. Confirm the supplied product's transport documentation and carrier requirements before dispatch.
Handling and storage: Only trained personnel should handle BF₃ using suitable gas equipment, ventilation, and protective measures. Secure cylinders appropriately, protect them from heat, and follow the current SDS for storage conditions, equipment compatibility, leak response, and emergency procedures.
Documentation: Request the current product SDS, relevant batch COA, and applicable cylinder and dangerous goods documentation before ordering. Site personnel should review these documents before receiving and using the gas.
Boron Trifluoride CAS 7637-07-2
Boron Trifluoride (BF₃) CAS 7637-07-2 from Aure Chemical
Boron trifluoride, also known as trifluoroborane (BF₃, CAS 7637-07-2), is a colorless gas and a strong Lewis acid that accepts electron pairs from suitable donor molecules. It is used in chemical synthesis, polymerization catalyst systems, and the preparation of boron-containing compounds and complexes. Appropriately qualified grades also serve as boron source gases in semiconductor processing. Aure Chemical supports China chemical sourcing, specification review, quality documentation, and export coordination for BF₃ gas.
Basic Information of Boron Trifluoride
Product identity and general reference properties are summarized below. The reported purity requirement and one complete analytical record are presented separately in the Reference Quality Analysis section.
| CAS No. | 7637-07-2 |
|---|---|
| EC No. | 231-569-5 |
| Molecular Formula | BF₃ |
| Molecular Weight | 67.81 g/mol |
| Appearance | Colorless gas |
| Odor | Pungent |
| Reported Purity Requirement | ≥99.99% in the reference COA |
| Melting Point | Approximately −127 °C (reference) |
| Boiling Point | Approximately −100 °C (reference) |
| Relative Gas Density | Approximately 2.4 (air = 1; reference) |
| Water Reactivity | Reacts with water or moisture, producing hazardous acidic products including hydrogen fluoride |
| Chemical Function | Lewis acid and electron pair acceptor |
| Transport Reference | UN 1008, BORON TRIFLUORIDE, Division 2.3, subsidiary risk 8; packing group not applicable |
| Chemical Structure |  |
Thermophysical values are general reference information and are not measurements from the reference COA. Confirm the applicable product specification, cylinder configuration, and current supplied-grade SDS before ordering.
Reference Quality Analysis
The following parameters provide a technical reference for evaluating BF₃ gas, covering purity, combined oxygen and argon, nitrogen, methane, carbon oxides, sulfur-related parameters, and silicon tetrafluoride. One complete analytical record is shown.
Reference basis: The requirements and results are reproduced from the reference COA, which cites an enterprise product standard. Individual analytical methods and the basis of the purity percentage are not stated in the report.
| Test Item | Reported Specification | Reference Result |
|---|---|---|
| BF₃ purity | ≥99.99% | 99.999% |
| Oxygen + argon (O₂ + Ar) | <5.0 ppmv | 0.1 ppmv |
| Nitrogen (N₂) | <40.0 ppmv | 0.6 ppmv |
| Methane (CH₄) | <2.0 ppmv | 0.1 ppmv |
| Carbon monoxide (CO) | <25.0 ppmv | 0.3 ppmv |
| Carbon dioxide (CO₂) | <10.0 ppmv | 0.2 ppmv |
| Sulfur dioxide (SO₂) | <10.0 ppmv | 0.1 ppmv |
| SO₄²⁻ (reported parameter) | <4.0 ppmv | <0.2 ppmv |
| Silicon tetrafluoride (SiF₄) | <4.0 ppmv | 2.1 ppmv |
Impurity units are reproduced as ppmv from the COA. The item labeled SO₄²⁻ and its ppmv unit are retained as reported; its analytical definition and reporting basis require confirmation before inclusion in a purchase specification.
These analytical results support preliminary technical evaluation and should not be interpreted as guaranteed specifications for every shipment. The 99.999% purity result represents the selected reference record. Confirm the agreed grade, individual impurity limits, and relevant batch-specific COA with Aure Chemical before ordering.
Semiconductor and other sensitive applications require review of the full process-specific specification, including any additional analytical requirements and cylinder or gas delivery requirements.
Key Applications of Boron Trifluoride
Organic synthesis catalysis: BF₃ is used as a Lewis acid in selected alkylation, esterification, isomerization, and condensation reactions. Catalyst suitability depends on the substrate, reaction medium, and process conditions.
Polymerization catalyst systems: BF₃-based systems are used in cationic polymerization of selected olefins, including isobutylene. Gas purity, impurity composition, and the selected co-catalyst are relevant to process evaluation.
BF₃ complexes and specialty synthesis: BF₃ forms Lewis acid-base adducts with suitable electron pair donors, including ethers and amines. Selected BF₃ complexes are used in catalysis and epoxy curing formulations. Gas and complex forms require separate product specifications and handling assessments.
Semiconductor boron source: Qualified BF₃ grades are used for boron ion implantation and related p-type doping processes. Suitability requires confirmation of the complete impurity specification, cylinder and valve configuration, and gas delivery compatibility for the intended process.
Neutron detection: Appropriately specified BF₃ is used as a filling gas in neutron proportional counters. Detector applications can require controlled boron isotopic composition and dedicated gas quality requirements; isotopic composition is not reported in the reference COA.
Aure Chemical: Sourcing and Export Support for BF₃
Aure Chemical is a chemical sourcing and export supply business. Product availability and order terms are reviewed against the required BF₃ grade, packaging, documentation, and destination requirements.
Specification review: We support review of BF₃ purity, individual impurity limits, and analytical reporting requirements using available supplier documentation and the purchaser's agreed specification.
Quality and safety documentation: Available batch-specific COA and product SDS can be requested before order confirmation. Additional testing or documentation requirements are subject to supplier confirmation.
Supplier and cylinder coordination: Cylinder size, valve connection, fill quantity, and applicable supply pressure are reviewed with the supplier for the intended use and receiving installation.
International export logistics: Packaging, labeling, dangerous goods documentation, and shipping feasibility are reviewed according to the product, route, carrier acceptance, and destination requirements.
Contact Aure Chemical with your required BF₃ purity, impurity limits, quantity, cylinder and valve requirements, intended application, and destination for a sourcing review.
Safety, Handling & Documentation
BF₃ is a toxic, corrosive gas supplied in pressure containers. The following information summarizes published SDS references for BF₃ gas. Confirm the current supplied-grade SDS and applicable labeling and transport requirements before handling or shipment.
Pictograms are reference symbols from published SDS for BF₃ gas. Confirm the required product label using the current supplied-grade SDS.
Packaging
Gas cylinder
Final packaging, capacity and net weight are confirmed in the quotation and order.
