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Boron Trifluoride

Boron Trifluoride is a colorless, toxic gas. It is shipped as a compressed gas.

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Boron Trifluoride

Formula: BF3

Boron trifluoride is corrosive. Suitable metals for equipment handling boron trifluoride include stainless steel, monel, and hastelloy. In presence of moisture it corrodes steel, including stainless steel. It reacts with polyamides. BF3 is most importantly used as a reagent in organic synthesis, typically as a Lewis Acid.

BF3 was discovered in 1808 by Joseph Louis Gay-Lussac and Louis Jacques Thenard who were trying to isolate fluoric acid by combining calcium fluoride with vitrified boric acid. BF3 is also currently used in fumigation, as a P-type dopant for epitaxially grown silicon and also in sensitive neutron detectors in ionization chambers and devises to monitor radiation levels in earths atmosphere.



Further Specifications

Cylinder Sizes

  • Used as a catalyst in isomerization, alkylation, polymerization, esterification, condensation, cyclization, hydration, dehydration, sulfonation, desulfurization, nitration, halogenation, oxidation, and acylation
  • To prepare boranes (such as diborane)
  • To protect molten magnesium and its alloys from oxidation during casting
  • As a flux for soldering magnesium
  • In fumigation
Grade 4.5
Purity 99.995%
Oxygen + Nitrogen + Argon < 10 ppmv
Carbon Dioxide < 10 ppmv
Sulfur Dioxide < 10 ppmv
Chemical & Physical Properties
Molecular Weight 67.81
Sp. Volume 5.6 cu.ft/lb
Pressure @ 70°F 700/400
Valve Outlet CGA 330 DISS 642
Shipping Information
DOT Name Boron Trifluoride, Compressed
Hazard Class 2.3
DOT No. UN 1008
DOT Label Poison Gas/Inhalation Hazard
CAS No. 7637-07-02
Cylinder Size Fill Weight (lb)
2L/Size 10 0.88
2L/Size 10 0.39
Lecture Bottle 0.077

**Moisture level guaranteed only when Electronic Fluorocarbons prepares the cylinders.
All concentrations are on a mol/mol basis unless otherwise stated.
Product sold on the basis of total impurities. Individual impurities may vary slightly.

*This gas not available for purchase online.