175. Preparation and properties of chlorine graphite

✍ Scribed by R. Juza

• Publisher: Elsevier Science
• Year: 1964
• Tongue: English
• Weight: 105 KB
• Volume: 1
• Category: Article
• ISSN: 0008-6223
• DOI: 10.1016/0008-6223(64)90466-x

✦ Synopsis

Three aspects will be discussed 1. The Br, desorption isotherm has been measured for various known rates of pressure reduction. For the two slowest rates the curves were identical and nearer the adsorption branch than for faster rates. The residue was also less by two-thirds for the slowest rate but did not reach zero. This latter effect was reversible for a given sample and suggests more kinetic trapping of Br, for faster rates of removal. 2. Rate of intercalation by 14.5 cm Br, at 20°C is being measured for disc-shaped crystals of radii from 0.01 to 0.30 cm and thicknesses from 0.001 to 0.01 cm. The current analysis of the data gives a diffusion coefficient of 5 x lo-' cm*/min independent of thickness. This suggests a random attack of the spaces between layer planes rather than an attack proceeding from the opposite basal planes of the crystal. 3. Isotherms of Brl, ICl and CrO,Cl, on the residue compounds of each adduct will also be presented. The CrO,Cl, residue is the most interesting because it will not intercalate any CrO,Cl, but will intercalate ICl or Br,.