Boron trifluoride is a colorless, nonflammable gas which fumes intensely on contact with air and has a pungent odor.
Chemical name | Boron trifluoride, Boron fluoride |
Trade name | Boron trifluoride |
Chemical formula | BF3 |
Molecular mass | 67.81 g/mol |
CAS No. | 7637-07-2 |
EINECS No. | 231-569-5 |
INDEX No. | 005-001-00-x |
Form supplied and packaging
Boron trifluoride is supplied as standard under pressure in steel cylinders having a maximum capacity of 43 kg or in
spherical gas holders having a maximum capacity of 500 kg. Filling into customers' own receptacles is possible.
Properties
In contact with atmospheric humidity boron trifluoride gives off high levels of fumes. It is stable to heat.
As a very powerful Lewis acid it forms addition compounds with numerous chemical compounds (see our product
range). With compounds whose molecules have associative bonding, e.g. water, alcohols or organic acids, addition
compounds containing one or even two mols of the component per mol of boron trifluoride are produced. In the
case of compounds whose molecules have little or no associative bonding, e.g. ethers, acid anhydrides or amines,
addition compounds are formed which per mol of boron trifluoride always contain only one mol of component.
Melting point | - 128,7 oC |
Boiling point | - 101 oC |
Density (0 oC, 1 bar) | 3.07 g/l |
Density (- 101 oC) | 1.57 g/cm3 |
Solubility in water (20 oC) | 3700 g/l |
Applications