CEEV FAJ SODA
Cov khoom lag luam
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Caustic sis dej qab zib
Caustic sis dej qab zib yog cov khoom dawb nrog muaj zog hygroscopicity. Nws yuav yaj thiab ntws tom qab kev nqus noo. Nws tuaj yeem nqus dej thiab carbon dioxide nyob rau hauv huab cua los tsim sodium carbonate. Nws yog brittle, soluble hauv dej, haus dej cawv, glycerin, tab sis insoluble hauv acetone. Thaum tshav kub kub ntau tso tawm. Cov kua aqueous yog nplua thiab alkaline. Nws yog xeb heev thiab tuaj yeem hlawv cov tawv nqaij thiab rhuav tshem cov ntaub so ntswg. Sib cuag nrog aluminium ntawm qhov kub siab tshaj tawm ua cov khoom siv hydrogen. Nws tuaj yeem ua kom sib xyaw nrog cov kua qaub thiab tsim kom muaj ntau hom ntsev. Cov kua dej ua kua sodium hydroxide (piv txwv li, soluble alkali) yog kua-xim xiav ua kua nrog cov xus xaim thiab ntxig xav, thiab nws cov khoom zoo li khoom alkali.
Qhov kev npaj ntawm caustic sis dej qab zib yog electrolytic lossis tshuaj. Kev siv tshuaj lom neeg suav nrog kev ua kua qaub ua rau lub cev tsis muaj mob lossis ferrite.
Kev siv cov caustic sis dej qab zib yog siv hauv cov xab npum hluavtaws, xab npum, papermaking; kuj siv los ua cov kuab tshuaj rau vat dyes thiab insoluble nitrogen dyes; kuj siv rau hauv kev tsim cov roj av, tshuaj fibers thiab rayon; kuj siv rau hauv cov tshuaj, xws li cov khoom lag luam ntawm vitamin C Tos. Nws kuj tseem siv tau hauv cov organic synthesis thiab roj av kev lag luam thiab siv ncaj qha ua desiccant.
