Dab Tsi Yog Caustic Soda

Sodium hydroxide, tshuaj kua tshuaj yog NaOH, feem ntau hu ua caustic sis dej qab zib, caustic sis dej qab zib, caustic sis dej qab zib yog qhov muaj zog corrosive muaj zog puag, feem ntau nyob rau hauv daim ntawv ntawm plaub ya ri lossis block, soluble hauv dej (yaj hauv dej) Cov kua tshuaj alkaline yog tsim, uas yog deliquescent. Nws yog qhov yooj yim kom nqus tau cov dej nqus cov pa (deliquescent) thiab carbon dioxide (ua kom tsis zoo) hauv huab cua. Nws tuaj yeem ntxiv nrog hydrochloric acid los xyuas seb nws puas muaj roj.

NaOH yog ib qho ntawm cov tshuaj tseem ceeb hauv chav tshuaj lom neeg thiab yog ib hom tshuaj muaj zog tshaj plaws. Cov khoom ntshiab yog xim tsis muaj xim thiab pob tshab. Qhov ntom ntom yog 2.130 g / cm3. 318.4 ° C melting kis. Cov ntsiab lus kub yog 1390 ° C. Cov khoom lag luam muaj cov tshuaj sodium sodium me me thiab sodium carbonate thiab muaj cov xim dawb opaque. Muaj cov nplov, plaub ya ri, granules thiab pas nrig. Tus nqi yog 39.997.

Sodium hydroxide tuaj yeem siv los ua cov tshuaj tua kab mob alkaline hauv kev kho dej, soluble hauv ethanol thiab glycerin; insoluble hauv propanol thiab ether. Kev faib tawm tsis haum nrog halogens xws li chlorine, bromine thiab iodine. Nws nruab nrog cov kua qaub tsim ua cov ntsev thiab dej.

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