Ua kua Ethyl Acetate

Cov kua dej ethyl acetate yog cov xim tsis muaj xim organic nrog cov ntxhiab tsw qab, fruity tsw. Nws cov tshuaj formula yog C4H8O2, thiab nws lub npe systematic yog ethyl ethanoate. Ethyl acetate feem ntau yog siv los ua cov kuab tshuaj hauv ntau yam lag luam, suav nrog txheej txheej, nplaum, tshuaj, thiab tshuaj pleev ib ce.

Qee qhov tseem ceeb ntawm cov kua ethyl acetate muaj xws li:

Cov kuab tshuaj: Ethyl acetate yog ib qho hnyav hnyav rau ntau yam khoom, nrog rau cov resins, roj, cov pos hniav, cellulose derivatives, thiab ntau cov organic tebchaw. Nws tuaj yeem yaj ob qho tib si polar thiab nonpolar, ua rau nws muaj ntau yam rau ntau daim ntawv thov.

Volatility: Ethyl acetate yog ib qho chaw tsis muaj zog, lub ntsiab lus nws evaporates nkag tau ntawm chav tsev kub. Cov cuab yeej no ua rau nws muaj txiaj ntsig zoo hauv cov ntawv thov uas xav tau kom qhuav sai thiab qis qis qis.

Flammability: Ethyl acetate yog nplaim taws thiab ua rau muaj hluav taws kub. Nws muaj qhov taw tes nyem ntawm ib ncig ntawm -4 degree (24.8 degree F) thiab tuaj yeem tsim cov khoom tawg nrog cov huab cua ntawm qee qhov concentration.

Qhov ceev: Qhov ceev ntawm cov kua ethyl acetate yog kwv yees li 0.9 grams ib cubic centimeter (g/cm³) ntawm 20 degree (68 degree F). Tus nqi no tuaj yeem sib txawv me ntsis nyob ntawm qhov kub thiab txias thiab impurities.

Miscibility: Ethyl acetate yog miscible nrog ntau cov organic solvents, xws li cawv, ketones, thiab ethers. Nws muaj kev txwv tsis pub miscibility nrog dej, nrog qhov siab tshaj plaws solubility ntawm kwv yees li 8.5% los ntawm qhov hnyav ntawm 20 degree (68 degree F).

Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias cov kua ethyl acetate yuav tsum tau ua tib zoo saib xyuas vim nws cov nplaim taws. Kev ua pa kom raug thiab kev tiv thaiv kev nyab xeeb yuav tsum tau ua thaum ua haujlwm nrog cov khoom sib xyaw no kom muaj kev nyab xeeb ua haujlwm.