Chifukwa chiyani kuchuluka kwa Si ndi NaOH kuli mwachangu kuposa SiO2?

Chifukwa chiyani mlingo wasiliconndi sodium hydroxide imatha kupitilira silicon dioxide ingawunthwe kuchokera kuzinthu izi:

Kusiyana kwa mphamvu zamagulu amphamvu

▪ Kachitidwe ka silicon ndi sodium hydroxide: Silicon ikakhala ndi sodium hydroxide, mphamvu ya Si-Si pakati pa maatomu a silikoni imangokhala 176kJ/mol. Chomangira cha Si-Si chimasweka panthawiyi, zomwe zimakhala zosavuta kuswa. Kuchokera pamalingaliro a kinetic, zomwe zimachitika zimakhala zosavuta kupitiliza.

▪ Kachitidwe ka silicon dioxide ndi sodium hydroxide: Mphamvu ya Si-O pakati pa maatomu a silikoni ndi maatomu a okosijeni mu silicon dioxide ndi 460kJ/mol, yomwe ndi yokwera kwambiri. Zimatengera mphamvu zambiri kuti zithetse mgwirizano wa Si-O panthawi yomwe mukuchita, kotero kuti zomwe zimachitika zimakhala zovuta kuti zichitike ndipo zomwe zimachitika pang'onopang'ono.

Zosiyanasiyana zimagwirira ntchito

▪ Silicon imachita ndi sodium hydroxide: Silikoni imayamba ndi sodium hydroxide pochita ndi madzi kuti ipange haidrojeni ndi silicic acid, kenako silicic acid imachita ndi sodium hydroxide kupanga sodium silicate ndi madzi. Panthawiyi, zomwe zimachitika pakati pa silicon ndi madzi zimatulutsa kutentha, zomwe zingalimbikitse kuyenda kwa maselo, potero kumapanga malo abwino kwambiri a kinetic kuti achitepo ndikufulumizitsa momwe amachitira.

▪ Silicon dioxide imakhudzidwa ndi sodium hydroxide: Silicon dioxide imayamba ndi sodium hydroxide pochita ndi madzi kuti ipange silicic acid, kenako silicic acid imachita ndi sodium hydroxide kupanga sodium silicate. Zomwe zimachitika pakati pa silicon dioxide ndi madzi ndizochepa kwambiri, ndipo machitidwewa samamasula kutentha. Kuchokera pamawonedwe a kinetic, sizothandiza kuchitapo kanthu mwachangu.

Zomangamanga zosiyanasiyana

▪ Kapangidwe ka silicon:Silikoniali ndi mawonekedwe a kristalo, ndipo pali mipata ina ndi kuyanjana kofooka pakati pa ma atomu, zomwe zimapangitsa kuti njira ya sodium hydroxide igwirizane ndikuchitapo kanthu ndi maatomu a silicon.

▪ Kapangidwe kasilicondioksidi:silicondioksidi ili ndi dongosolo lokhazikika la maukonde.Silikonimaatomu ndi ma atomu okosijeni amamangidwa molimba ndi ma covalent bond kuti apange mawonekedwe olimba komanso okhazikika a kristalo. Ndikovuta kuti yankho la sodium hydroxide lilowe mkati mwake ndikulumikizana kwathunthu ndi maatomu a silicon, zomwe zimapangitsa kuti pakhale zovuta kuchitapo kanthu mwachangu. Ma atomu a silicon okha pamwamba pa silicon dioxide particles amatha kuchitapo kanthu ndi sodium hydroxide, ndikuchepetsa zomwe zingachitike.

Zotsatira za zinthu

▪ Kapangidwe ka silicon ndi sodium hydroxide: Kukatentha, mphamvu ya silikoni yokhala ndi sodium hydroxide solution imachulukira kwambiri, ndipo kachitidwe kake kamakhala bwino pakatentha kwambiri.

▪ Kapangidwe ka silicon dioxide ndi sodium hydroxide: Silicon dioxide yokhala ndi sodium hydroxide solution imachedwa kuzizira kwambiri. Nthawi zambiri, kuchuluka kwa zomwe zimachitikira kudzakhala bwino pansi pamikhalidwe yovuta monga kutentha kwambiri komanso yankho la sodium hydroxide.