Kev txhais thiab cov khoom ntawm sodium bicarbonate_sodium bicarbonate tsum
(1) Lub ntsiab lus ntawm sodium bicarbonate
Cov hmoov tshauv dej qab zib (Soda Tshauv), tseem hu ua cov dej qab zib, cov dej qab ntoo tshauv, tshuaj alkaline los yog ntxuav alkali, yog muaj li ntawm sodium carbonate, cov tshuaj molecular yog Na2CO3 thiab molecular hnyav yog 105.99. sodium bicarbonate yog qhov tseem ceeb ua tshuaj lom neeg ua kom zoo thiab ib qho ntawm ob lub hauv paus hauv" tribasic acid" ;. Nws yog dav siv nyob rau hauv ntau daim teb ntawm kev lag luam hauv teb chaws, xws li cov ntaub ntawv hauv tsev, petrochemicals, metallurgy, zaub mov, textiles, tiv thaiv, tshuaj, nyob hauv txoj haujlwm tseem ceeb heev.
(2) Sodium carbonate-lub zog lub cev
Sodium carbonate yog ib qho tsis muaj ntxhiab dawb hmoov lossis granule ntawm chav tsev kub. Nws muaj dej nqus thiab maj mam nqus noo noo hauv huab cua. Muaj peb hom sodium carbonate hydrates: Na2Co3 · H2O, Na2Co3 · 7H2O thiab Na2Co3 · 10H2O. Sodium carbonate yog yooj yim soluble hauv dej thiab glycerin, me ntsis soluble hauv kev tsis haum txog ethanol, thiab tsis yog soluble hauv propanol. Dissolve 20g ntawm sodium carbonate rau 100g dej (ntawm 20 ° C), qhov siab tshaj plaws kev daws teeb meem yog 35.4 ° C, thiab yaj 49.7g ntawm sodium carbonate ib 100g dej.
(3) Sodium carbonate-tshuaj lom neeg thaj chaw
Sodium carbonate yog cov ntsev ntsev. Sodium carbonate yog hydrolyzed nyob rau hauv cov tshuaj tov aqueous, thiab carbonate ions sib txuas nrog hydrogen ions hauv dej los tsim bicarbonate ions, uas ua rau txo hydrogen hydrogen ions hauv kev daws teeb meem, tawm ntawm ionized hydroxide ions, yog li cov kua aqueous yog alkaline (PH=11.6) Cov. Sodium carbonate muaj qee yam kev xeb thiab lub zog ruaj khov, tab sis nws tuaj yeem decomposed rau hauv sodium oxide thiab carbon dioxide ntawm qhov kub. Thaum qhia tawm rau huab cua ntev ntev, sodium carbonate nqus cov dej noo thiab carbon dioxide hauv cov pa, ua cov sodium bicarbonate.
