✦ LIBER ✦

Iodine adsorption method for measuring surface area of carbon blacks

✍ Scribed by Balwant Rai Puri; R.C. Bansal

Publisher: Elsevier Science
Year: 1965
Tongue: English
Weight: 368 KB
Volume: 3
Category: Article
ISSN: 0008-6223
DOI: 10.1016/0008-6223(65)90055-2

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✦ Synopsis

Adsorption of iodine by carbon blacks from aqueous, chloroform and benzene solutions was studied and conditions for estimating surface areas of carbon blacks were standardized. It was found that the adsorption of iodine by carbon black from 0.3 N aqueous solution of iodine in potassium iodide (14 moles per mole of iodine) after 75 hr of contact as well as that from 0.3 N solution of iodine in chloroform or benzene after 15 or 20 days of contact yieids uhimate value which is not exceeded on raising the concentration or prolonging the time of contact and can serve as index of surface area, irrespective of the nature of the carbon black. Adsorption was found to be mostly physical in nature.

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