Fektheri ea Mokelikeli oa Glacial Acetic Acid 99.9% ka Phepelo e Kholo
Re na le lisebelisoa tsa sejoale-joale. Lihlahisoa tsa rona li romeloa kantle ho naha bakeng sa USA, UK le tse ling, li natefeloa ke boemo bo botle har'a bareki bakeng sa Fektheri ea Liquid Glacial Acetic Acid 99.9% ka Phepelo e Akaretsang, Re tla etsa sohle se matleng a rona ho fihlela kapa ho feta litlhaloso tsa bareki ka litharollo tsa boleng bo holimo, mohopolo o tsoetseng pele, le mofani ea sebetsang hantle le ea nakong. Re amohela bareki bohle ba ka bang teng.
Re na le lisebelisoa tsa sejoale-joale. Lihlahisoa tsa rona li romeloa kantle ho naha bakeng sa USA, UK le tse ling, li natefeloa ke boemo bo botle har'a bareki bakeng sa , Ho rekisa litharollo tsa rona ha ho bake likotsi 'me ho tlisa phaello e phahameng k'hamphaning ea hau ho e-na le hoo. Ke sepheo sa rona se sa khaotseng ho etsa hore bareki ba be le boleng. Khamphani ea rona e batla baemeli ka tieo. U emetse eng? Tloo 'me u ikopanye le rona. Hona joale kapa che.
Dikahare tsa Asiti ya Glacial Acetic ya Mokelikeli
Molao-motheo: Titration ea Neutralization ka tharollo e tloaelehileng ea sodium hydroxide ho sebelisoa phenolphthalein e le sesupo. Tekanyo ea asiti ea formic e tlosoa palong.
Li-reagent le Litharollo:
Tharollo e tloaelehileng ea sodium hydroxide: c(NaOH) = 1 mol/L.
Sesupo sa Phenolphthalein: Tharollo ea ethanol ea 5 g/L. Qhibilihisa 0.5 g ea phenolphthalein ka har'a 100 ml ea ethanol ea 95% (V/V) 'me u e ntlafatse ka tharollo ea sodium hydroxide ea 4 g/L ho fihlela 'mala o pinki o sa bonahaleng o hlaha.
Sesebelisoa: Botlolo ea ho lekanya e nang le khoune (bokgoni ba 3 ml); alkaline burette (bokgoni ba 50 ml). Liquid Glacial Acetic Acid.
Mokhoa: Bekha hoo e ka bang 2.5 g ea sampole ka botlolong e nang le boima ba khoune, e nepahetseng ho 0.0001 g. Beha botlolo ka har'a botlolo e nang le khoune ea 250 ml e nang le 50 ml ea metsi a hloekisitsoeng a se nang carbon dioxide. Bula sekoahelo sa botlolo, eketsa 0.5 ml ea phenolphthalein indicator, 'me u titrate ka tharollo e tloaelehileng ea sodium hydroxide ho fihlela 'mala o pinki o lerootho o tsoela pele metsotsoana e 5.
