Me yasa yawan amsawar Si da NaOH ya fi sauri fiye da SiO2?

Me yasa yawan amsawarsiliconKuma sodium hydroxide zai iya wuce na silicon dioxide za a iya nazarinsa daga waɗannan fannoni:

Bambanci a cikin makamashin haɗin sinadarai

▪ Martanin silicon da sodium hydroxide: Lokacin da silicon ya yi aiki da sodium hydroxide, ƙarfin haɗin Si-Si tsakanin ƙwayoyin silicon shine 176kJ/mol kawai. Haɗin Si-Si yana karyewa yayin amsawar, wanda ya fi sauƙin karyewa. Daga mahangar motsi, amsawar ta fi sauƙi a ci gaba.

▪ Haɗarin 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 yawa. Yana buƙatar ƙarin kuzari don karya haɗin Si-O yayin haɗarin, don haka haɗarin yana da wahalar faruwa kuma saurin amsawar yana da jinkiri.

Tsarin amsawa daban-daban

▪ 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 yana amsawa da sodium hydroxide don samar da sodium silicate da ruwa. A lokacin wannan amsawar, amsawar da ke tsakanin silicon da ruwa tana fitar da zafi, wanda zai iya haɓaka motsi na kwayoyin halitta, ta haka ne ke samar da yanayi mafi kyau na motsi don amsawar da kuma hanzarta saurin amsawar.

▪ 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 yana amsawa da sodium hydroxide don samar da sodium silicate. Haɗarin da ke tsakanin silicon dioxide da ruwa yana da matuƙar jinkiri, kuma tsarin amsawar ba ya sakin zafi. Daga mahangar motsi, ba ya taimakawa ga saurin amsawa.

Tsarin kayan daban-daban

▪ Tsarin silicon:Siliconyana da wani tsari na lu'ulu'u, kuma akwai wasu gibi da kuma rashin mu'amala tsakanin kwayoyin halitta, wanda hakan ke sauƙaƙa wa ruwan sodium hydroxide ya yi hulɗa da kwayoyin halitta na silicon.

▪ Tsarinsilicondioxide:silicondioxide yana da tsarin cibiyar sadarwa mai ƙarfi.SiliconAna ɗaure ƙwayoyin halitta da ƙwayoyin iskar oxygen sosai ta hanyar haɗin covalent don samar da tsarin lu'ulu'u mai tauri da karko. Yana da wuya ruwan sodium hydroxide ya shiga cikin ciki ya kuma taɓa ƙwayoyin silicon gaba ɗaya, wanda ke haifar da wahala a hanzarta amsawa. Kwayoyin silicon ne kawai a saman ƙwayoyin silicon dioxide za su iya amsawa da sodium hydroxide, wanda ke iyakance yawan amsawar.

Tasirin yanayi

▪ Yadda silicon ke amsawa da sodium hydroxide: A yanayin dumama, yawan amsawar silicon tare da sodium hydroxide zai yi sauri sosai, kuma amsawar gabaɗaya zata iya tafiya cikin sauƙi a yanayin zafi mai yawa.

▪ Yadda silicon dioxide ke amsawa da sodium hydroxide: Yadda silicon dioxide ke amsawa da sodium hydroxide yana da jinkiri sosai a zafin ɗaki. Yawanci, saurin amsawar zai inganta a ƙarƙashin yanayi mai tsauri kamar zafi mai yawa da kuma sinadarin sodium hydroxide mai ƙarfi.