𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Thermodynamics of the Sr2+-H+ and Cs+-H+ exchange on cerium(IV) and tin(IV) antimonates

✍ Scribed by I.M. El-Naggar; M.A. El-Absy; H.F. Aly


Publisher
Elsevier Science
Year
1992
Weight
442 KB
Volume
66
Category
Article
ISSN
0166-6622

No coin nor oath required. For personal study only.


πŸ“œ SIMILAR VOLUMES


Thermodynamics of the H+Na+ and H+Cs+ ex
✍ I.M. El-Naggar; E.S. Zakaria; H.F. Aly πŸ“‚ Article πŸ“… 1996 πŸ› Elsevier Science 🌐 English βš– 502 KB

Addition of methanol decreases AG", AH' and As0 of the exchange of Naf or Cs+ for H+ in tin(W) antimonate. Thus, the increase of selectivity constant is due to the decrease in the enthalpy term. On going from 30 to 90% (w/w) methanol, negative enthalpy and entropy changes occur may be due to chemiso

Cerium (IV) ammonium nitrate as an effic
✍ Kamal Usef Sadek; Fawzia Al-Qalaf; Mervat Mohammed Abdelkhalik; Mohamed Hilmy El πŸ“‚ Article πŸ“… 2010 πŸ› Journal of Heterocyclic Chemistry 🌐 English βš– 67 KB πŸ‘ 2 views

## Abstract magnified image A simple and highly efficient procedure for the Biginelli condensation reaction of aldehydes, β‐ketoesters, urea, or thiourea catalyzed by Ceric ammonium nitrate (CAN) as a Lewis‐acid at ambient temperature is described. The procedure proved to be simple and of high yiel