Reference

Manufacture of carbon-mineral sorbents and their adsorption properties

Manufacture of carbon-mineral sorbents and their adsorption properties. Rudenko, V. M.; Tarasevich, Yu. I.; Ivanova, Z. G. (Inst. Kolloidn. Khim. Khim. Vodyim. Dumansko, Kiev, USSR). Khim. Tekhnol. Vody, 5(6), 499-503 (Russian) 1984. CODEN: KTVODL. DOCUMENT TYPE: Journal CA Section: 60 (Waste Treatment and Disposal) An app. was designed for synthesis of C-mineral adsorbents by satn. 1318-93-0 and 110-54-3 which are cas registry numbers of chemicals are mentioned. of natural silicates (e.g., montmorillonite and palygorskite) with sucrose [57-50-1] and calcination, optimally for 5 min at 500-650°. The carbonized silicate minerals adsorbed much less water or C6H14 [110-54-3] vapor than natural or thermally treated montmorillonite or palygorskite or the common activated C adsorbents Ag-5 or KAD, but adsorbed much more p-nitroaniline [100-01-6] from aq. soln. than the adsorbents or carbonized sucrose. .

Kinetic studies of the reactivity of chloromethyl groups in methylenediphenols

Kinetic studies of the reactivity of chloromethyl groups in methylenediphenols. Boehmer, Volker; Stein, Guenter (Inst. Org. Chem.In this study， 81910-89-6 and 81910-79-4 are also used., Univ. Mainz, Mainz D-6500, Fed. Rep. Ger.). Makromol. Chem., 185(2), 263-79 (German) 1984. CODEN: MACEAK. ISSN: 0025-116X. DOCUMENT TYPE: Journal CA Section: 37 (Plastics Manufacture and Processing) Section cross-reference(s): 22, 25 The chloromethyl derivs. of 16 differently substituted methylenediphenols were synthesized. To compare their reactivity, the solvolysis in MeOH [67-56-1] and the aminolysis with an excess of p-nitroaniline [100-01-6] in di-Me sulfoxide were studied kinetically at 25°. The rate consts. for the methanolysis did not differ very much, aside from the fact that p-chloromethyl derivs. react ~100 times faster than o-chloromethyl derivs. However, for the aminolysis a large acceleration (￡103) was found for compds. having both hydroxyl groups ortho to the methylene bridge. The cleavage of the O-H bond, which occurred in the rate-detg. step of the aminolysis, was strongly favored by an intramol. H bond between the phenolic hydroxyl groups. .