Nyocha banyere oke ngwa nke silica gel desiccant

Na mmepụta na ndụ, silica gel nwere ike iji kpoo N2, ikuku, hydrogen, gas gas [1] na ihe ndị ọzọ. Dị ka acid na alkali si kwuo, enwere ike kewaa desiccant n'ime: acid desiccant, alkaline desiccant na nnọpụiche desiccant [2]. Silica gel na-egosi na ọ bụ onye na-ekpo ọkụ na-anọpụ iche nke yiri ka ọ na-akpọ nkụ NH3, HCl, SO2, wdg Otú ọ dị, site n'echiche nke ụkpụrụ, silica gel mejupụtara atọ akụkụ intermolecular dehydration nke orthosilicic acid molecules, isi ahụ bụ SiO2, na elu bụ ọgaranya hydroxyl otu (lee Figure 1). Ihe kpatara gel silica nwere ike ịmịnye mmiri bụ na silicon hydroxyl otu dị n'elu silica gel nwere ike ịmepụta njikọ nke hydrogen intermolecular na ụmụ irighiri mmiri, n'ihi ya, ọ nwere ike ịgbanye mmiri ma si otú ahụ na-arụ ọrụ ihicha. Silica gel na-agbanwe agba nwere ion cobalt, na mgbe mmiri mgbasa ozi ruru saturation, ions cobalt dị na silica gel na-agbanwe agba na-aghọ ions cobalt hydrated, nke mere na silica na-acha anụnụ anụnụ na-aghọ pink. Mgbe kpochara silica silica pink na 200 ℃ ruo oge ụfọdụ, njikọ hydrogen n'etiti silica gel na mmiri mkpụrụ ndụ na-agbaji, na silica gel na-acha anụnụ anụnụ ga-atụgharị ọzọ, nke mere na enwere ike ịmegharị ihe nhazi nke silicic acid na silica gel dị ka e gosiri na Figure 1. Ya mere, ebe ọ bụ na elu nke silica gellic dị iche iche nwere ike ịba ụba na hydrogen silica gel dị iche iche. jikọtara ya na NH3 na HCl, wdg, ma ọ gaghị enwe ụzọ ọ bụla isi mee ihe dị ka onye na-ehichapụ NH3 na HCl, ọ dịghịkwa akụkọ dị mkpa na akwụkwọ ndị dị ugbu a. Yabụ kedu ihe si na ya pụta? Isiokwu a emela nyocha nnwale ndị a.