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Cov Science News for KIDS ntawm txhuas Sulfate

Tsis yooj yim tsis siv lead ua dej weathered, ruaj khov kuj, hluav taws kub, kub siab rau aluminium oxide thiab leej faj oxides decomposes.

Cua kub los 770 ° c pib zom li txhuas oxide, oxide leej faj, leej faj dioxide thiab dej vapor. Insoluble hauv dej, cov acids thiab alkalis, soluble ethanol. Aqueous tov yog acidic. Generated tom qab lub hydrolysis ntawm txhuas hydroxide. Dej ib kub npau npau rau ib lub sij hawm ntev yuav ua kom muaj ib theem pib txhuas sulfate. Lom, plua plav tau lub qhov muag.

Hydrolysate Alkali ntsev thiab colloidal ua sai sai ntawm txhuas hydroxide. Yooj yim txiav nrog potassium, sodium thiab ammonium salts rau daim ntawv alum, txhuas potassium sulfate

2·12H2O。 kAl (SO4)

Thaum dua lub hydrate, swell hnyav, thiab ua ib daim txhuam cev, thaum cua kub cua kub liab thiab lwj hauv cov leej faj trioxide thiab alumina.


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