Cov khoom siv ntawm cov khoom siv hauv qab qab zib yog muab cov tapioca thiab acetic acid rau hauv lub pob zeb, ntxiv cov catalyst, teem ib qho kub, ceev thiab lub sij hawm, ntxuav cov ntaub ntawv nrog distilled dej thiab ethanol, thiab qhuav lawv kom tau cassava acetate starch;Dissolve cassava acetate starch hauv distilled dej ...
Nyeem ntxiv