Cov zaub mov qib potassium acetate tsim thiab khaws cia li cas? Koj puas tuaj yeem nkag siab qhov kev paub no? Cia peb qhia rau koj tam sim no!
1. Nws yog tau los ntawm reacting glacial acetic acid nrog poov tshuaj hydroxide.
2. Noj 2000g ntawm poov tshuaj bicarbonate thiab ntxiv 1000g dej. Maj mam ntxiv 650g ntawm 98% acetic acid nyob rau hauv cua sov thiab nplawm. Muaj ntau cov pa roj carbon dioxide tsim tawm. Tswj tus nqi ntawm cov kua qaub ntxiv kom tsis txhob muaj cov kua dej ntws tawm. Tom qab ntxiv acetic acid, boil cov tshuaj rau ib nrab ib teev, txias me ntsis, thiab lim. Evaporate cov filtrate nyob rau hauv tas li stirring kom txog thaum lub kub nce mus txog 160-180 degree, nyob rau hauv lub point feem ntau ntawm cov crystals precipitate. Sib zog thiab txias, lim tawm crystals.
3. Neutralize cov acetic acid aqueous tov nrog poov tshuaj hydroxide, mloog zoo rau cov tshuaj kom precipitate cov muaju, thiab qhuav lub resulting crystals ntawm 180 degree rau 1 hnub.
Ntxiv nrog rau cov txheej txheem tsim khoom saum toj no, kev saib xyuas zoo yuav tsum tau them rau kev khaws cov zaub mov qib potassium acetate. Cov khoom noj khoom haus qib potassium acetate yuav tsum muab khaws cia rau hauv qhov chaw kaw thiab qhuav, yog li peb yuav tsum tau saib xyuas cov ntsiab lus me me hauv peb lub neej txhua hnub.