The divalent organic cation, methyl green (MG), undergoes a slow transformation (6 h) to a monovalent cation, carbinol (MGOH + ) upon dilution of its solution (10 mM), or in a buffer at neutral pH. Adsorption isotherms of MG on montmorillonite were determined by two procedures, both of which yield a
Interaction of Pyridine Derivatives with Sepiolite
✍ Scribed by E. Sabah; M.S. Çelik
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 144 KB
- Volume
- 251
- Category
- Article
- ISSN
- 0021-9797
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The adsorption of pyridine on the surface of the raw sepiolite and Fe-pillared sepiolite catalysts has been studied for the determination of the Brønsted and Lewis acid sites. The data obtained showed that the catalysts have medium Lewis acidity, but are also weak Brønsted acids, having active hydro
## Abstract The reactions of hexachlorocyclotripho‐sphazatriene, N~3~P~3~Cl~6~ (**1**), with 2‐hydroxypyridine (**2**), 2‐aminopyridine (**3**), 2‐amino‐6‐methyl‐pyridine (**4**), and 2‐hydroxy‐4‐methylquinoline (**5**) have been investigated. The products were identified by elemental analyses, IR,