Me yasa adadin amsawar Si da NaOH ya fi SiO2 sauri?

Me yasa yawan amsawarsilikikuma sodium hydroxide na iya zarce na silicon dioxide za a iya bincikar su daga waɗannan abubuwan:

Bambanci a cikin makamashi bond na sinadaran

Martanin silicon da sodium hydroxide: Lokacin da siliki ta yi maganin sodium hydroxide, ƙarfin haɗin Si-Si tsakanin atom ɗin silicon shine kawai 176kJ/mol. Ƙimar Si-Si tana karyewa a lokacin amsawa, wanda ya fi sauƙin karya. Daga ra'ayi na motsin rai, amsawa ya fi sauƙi don ci gaba.

Martanin silicon dioxide da sodium hydroxide: Ƙarfin haɗin Si-O tsakanin atom ɗin silicon da atom ɗin oxygen a cikin silicon dioxide shine 460kJ/mol, wanda yake da girma. Yana ɗaukar makamashi mafi girma don karya haɗin Si-O yayin amsawa, don haka amsawar yana da wuyar faruwa kuma ƙimar amsawa yana jinkirin.

Daban-daban hanyoyin amsawa

Silicon yana amsawa da sodium hydroxide: Silicon yana amsawa da sodium hydroxide da farko ta hanyar amsawa da ruwa don samar da hydrogen da silicic acid, sannan silicic acid ya amsa da sodium hydroxide don samar da sodium silicate da ruwa. A lokacin wannan dauki, da dauki tsakanin silicon da ruwa saki zafi, wanda zai iya inganta kwayoyin motsi, game da shi, samar da mafi kyau motsi yanayi domin dauki da kuma hanzarta daukar mataki.

▪ Silicon dioxide yana amsawa da sodium hydroxide: Silicon dioxide yana amsawa da sodium hydroxide da farko ta hanyar amsawa da ruwa don samar da silicic acid, sannan silicic acid ya amsa da sodium hydroxide don samar da sodium silicate. A dauki tsakanin silicon dioxide da ruwa ne musamman jinkirin, da dauki tsari m ba ya saki zafi. Daga ra'ayi na motsin rai, ba shi da amfani ga saurin amsawa.

Daban-daban tsarin kayan abu

▪ Tsarin Siliki:Silikiyana da ƙayyadaddun tsari na crystal, kuma akwai wasu ɓangarorin da kuma mu'amala mai rauni a tsakanin kwayoyin halitta, yana sauƙaƙa don maganin sodium hydroxide don tuntuɓar da amsa tare da atom ɗin silicon.

▪ Tsarinsilikidioxide:silikidioxide yana da tsayayyen tsarin cibiyar sadarwa na sarari.Silikiatoms da oxygen atoms an daure su tam ta hanyar covalent bond don samar da tsari mai ƙarfi da karko. Yana da wahala maganin sodium hydroxide ya shiga cikin cikinsa da cikakken tuntuɓar atom ɗin silicon, yana haifar da wahala cikin saurin amsawa. Silicone atom kawai akan saman silindioxide barbashi zai iya amsawa tare da sodium hydroxide, yana iyakance ƙimar amsawa.

Tasirin yanayi

Matsalolin silicon tare da sodium hydroxide: A ƙarƙashin yanayin dumama, ƙimar amsawar silicon tare da maganin sodium hydroxide za a ƙara haɓaka sosai, kuma amsawar na iya ci gaba da sauƙi a yanayin zafi.

▪ Halin silicon dioxide tare da sodium hydroxide: Halin silicon dioxide tare da maganin sodium hydroxide yana jinkiri sosai a zafin jiki. Yawancin lokaci, za a inganta ƙimar amsawa a ƙarƙashin yanayi mai tsauri kamar zafin jiki mai zafi da mai daɗaɗɗen maganin sodium hydroxide.