Sublimation study of BiBr3

✍ Scribed by J. H. Kim; S. Blairs

• Book ID: 104739638
• Publisher: Springer
• Year: 1995
• Tongue: English
• Weight: 546 KB
• Volume: 30
• Category: Article
• ISSN: 0022-2461
• DOI: 10.1007/bf00362134

✦ Synopsis

Steady-state sublimation vapour pressures of anhydrous bismuth tribromide have been measured by the continuous gravimetric Knudsen-effusion method from 369.3 to 478.8 K. Additional effusion measurements have also been made from 435.4 to 478.6 K by the torsion-effusion method. Based on a correlation of AsubH ~ and AsubS ~ 298 298, a recommended p(T) equation has been obtained for BiBr3(s) ~-BiBr3: log p = -Ca~T-12.2941og T+5.79112 x 10 -3 T+47.173 with C~=(A~ubH~ x 10 -2 13-BiBr3: log p=-C~/T-23.251 log T+1.0492 x 10 -2 T+77.116 = (Asob H298 + 46.2642)/1.91 46 x 10-2 with CI3 0

where p is in Pa, Tin Kelvin, AsubH%8 in kJ mo1-1. Condensation coefficients and their temperature dependence have been derived from the effusion measurements.