Ubushakashatsi kurwego rwo gukoresha silika gel desiccant

Mubikorwa nubuzima, silika gel irashobora gukoreshwa mukumisha N2, umwuka, hydrogène, gaze naturel [1] nibindi. Ukurikije aside na alkali, desiccant irashobora kugabanywamo ibice: desiccant acide, desalcant ya alkaline na desiccant idafite aho ibogamiye [2]. Gelika ya Silica isa nkaho yumye idafite aho ibogamiye isa nkaho yumye NH3, HCl, SO2, nibindi. Ariko rero, duhereye ku mahame, gelika ya silika igizwe na de-dimanioni ya intermolecular dehidrasi ya molekile ya acide ya orthosilique, umubiri nyamukuru ni SiO2, kandi ubuso bukungahaye ku matsinda ya hydroxyl (reba Ishusho 1). Impamvu geli ya silika ishobora gukuramo amazi nuko itsinda rya hydroxyl ya silicon hejuru ya gelika ya silika rishobora gukora hydrogène ya hydrogène intermolecular hamwe na molekile zamazi, bityo irashobora gukurura amazi bityo ikagira uruhare rwo gukama. Gel ya silika ihindura ibara irimo ion ya cobalt, hanyuma amazi ya adsorption ageze ku kwiyuzuzamo, ion ya cobalt muri gelika ihindura amabara ya silika ihinduka hydrata cobalt ion, kuburyo gel silika yubururu ihinduka umutuku. Nyuma yo gushyushya gel ya silika yijimye kuri 200 ℃ mugihe runaka, umurunga wa hydrogène uri hagati ya silika gel na molekile yamazi ucika, hanyuma gelika ya silika ifite ibara ryongeye guhinduka ubururu, kugirango igishushanyo mbonera cya acide silicic na gelika silika gishobora kongera gukoreshwa nkuko bigaragara ku gishushanyo cya 1. nka desiccant ya NH3 na HCl, kandi nta raporo ifatika mubitabo bihari. None ibisubizo ni ibihe? Iyi ngingo yakoze ubushakashatsi bwubushakashatsi bukurikira.