Tetrafluoroboric acid-diethyl ether complex, 50-55% w/w HBF4

Description

CAS: 67969-82-8 | C4H11BF4O | 161.935 g/mol

Tetrafluoroboric acid-diethyl ether acts as an effective catalyst used for various carbohydrate protection reactions. It is also used as a catalyst in the preparation of 4-fluoropiperidines by reaction between aldehydes and N-tosyl homoallylamine.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Specifications

Chemical Identifiers

• CAS: 67969-82-8
• Molecular Formula: C4H11BF4O
• Molecular Weight (g/mol): 161.935
• MDL Number: MFCD00011345
• InChI Key: XFHGDBFMJCLEOW-UHFFFAOYSA-N
• Synonym: fluoroboric acid diethyl ether complex, tetrafluoroboric acid diethyl ether complex, hbf4.oet2, fluoroboric acid diethylether complex, boron trifluoride diethyl ether hydrofluoride
• PubChem CID: 11344169
• IUPAC Name: ethoxyethane;trifluoroborane;hydrofluoride
• SMILES: B(F)(F)F.CCOCC.F

• Color: Colorless to Orange
• Density: 1.19 g/mL
• Flash Point: 36°C (97°F)
• Linear Formula: HBF₄·(CH₃CH₂)₂O
• Quantity: 25 mL
• UN Number: UN2920
• Sensitivity: Moisture sensitive
• Merck Index: 14,4149
• Solubility Information: Reacts in water;Miscible with dichloromethane.
• Formula Weight: 161.93
• Concentration or Composition (by Analyte or Components): 50 to 55% w/w HBF₄
• Physical Form: Liquid
• Chemical Name or Material: Tetrafluoroboric acid-diethyl ether complex

Safety and Handling

Hazard Category	H226-H302-H314-H335-H336
Hazard Statement	GHS H Statement H314-H318-H226-H302-H336 Causes severe skin burns and eye damage. Causes serious eye damage. Flammable liquid and vapor. Harmful if swallowed. May cause drowsiness or dizziness.
Precautionary Statement	P210-P233-P235-P240-P241-P242-P243-P260-P264b-P270-P271-P280-P303+P361+P353-P304+P340-P305+P351+P338-P310-P330-P331-P363-P370+P378q-P501c
DOTInformation	Hazard Class: 8; Packaging Group: II
EINECSNumber	267-983-8
TSCA	Yes
Recommended Storage	Keep cold; Store under Nitrogen

SDS

RUO – Research Use Only