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Boron trifluoride is a colorless gas which has a persistent, irritating, acidic odor and which hydrolyzes in moist air to form dense white fumes. It is shipped as a nonliquefied compressed gas at varying pressures up to 2000 psig (13 790 kPa).
The thermodynamics solvolysis constant of the BF 4 − ion in liquid anhydrous hydrogen fluoride was determined to be 7·7 × 10 −3 by a method of solubility measurements. From the extensive solvolysis of its salt, it was concluded, therefore, the BF 3 was not a strong acid in liquid HF.
23 lip 1999 · Liquid HF is a weak acid but the addition of BF 3 greatly increases the acidity of the solution. In order to gain insight into this phenomenon we have used density functional theory to investigate the clusters BF 3 + (HF) 1–7. We find that BF 3 + (HF) 1–3 are weakly bound Van der Waals complexes, as indicated by long intermolecular B–F distances.
12 paź 2016 · Two ionic equilibrium models were proposed to simulate the hydrolysis equilibrium of BF3 and tested by special acid-base titration technique. The most accurate ion equilibrium constants were determined.
Click the Symmetry Operations above to view them in 3D. BF 3 belongs to the D 3h point group and contains;. one C 3 rotation axis. Three C 2 axes perpendicular to the C 3 Axis. 3σ v planes of symmetry,One σ h plane. An S 3 Axis (not illustrated). Pointgroup Flow Chart . D nd | D nh | D n Pointgroups
Boron trifluoride readily absorbs water (3.22 g per 1 g water at 0°C and 1 atm) and forms various hydrates including the hemihydrate (BF 3∙0.5H 2O), monohydrate (BF 3∙H 2O), dihydrate (BF 3∙2H 2O) and even trihydrate (BF 3∙3H 2O) complexes. The monohydrate is most common. All these species exist as simple adducts and are liquids ...
T TLV 1 ppm E C H N I C A L D A T A Size, mm 0.254 0.3556 0.508 0.762 1.016 RFOD at Size, inches 0.010 0.014 0.020 0.030 0.040 Flow, sccm 10640 20313 41916 93505 161215 Flow, scf/h 22.5 43.0 88.8 198.1 341.6 NT P=2 1°C or7 0F and .3k tm Nominal Diameter (OD)xHeight* Material of Construction ...
