Chifukwa chiyani sublimation imagwiritsidwa ntchito kuyeretsa caffeine?
Chifukwa chiyani sublimation imagwiritsidwa ntchito kuyeretsa caffeine?
Anonim

Mankhwala omwe amasonkhanitsidwa pambuyo pochotsa amakhalabe ndi zonyansa zambiri. Sublimation ndi njira imodzi yeretsani chitsanzo, chifukwa khofi imatha kudutsa molunjika kuchokera ku cholimba kupita ku nthunzi ndikubwerera m'mbuyo ndikupanga cholimba chonse popanda kudutsa gawo lamadzimadzi.

Apa, kodi sublimation imayeretsa bwanji caffeine wopangidwanso?

Kafeini akhoza kuyeretsedwa ndi sublimation mu vacuo popeza ali ndi mphamvu ya nthunzi yoyenera pa kutentha pansi pa kusungunuka kwake kwa 234-237 ° C. Tengani mphete yokhala ndi vacuum botolo pamalo omwe mungathe kukoka vacuum ndi kupeza choyatsira gasi.

Komanso, kodi caffeine ndi yabwino? Kafeini Kutentha kwapakati pa 160 ° C ndipo, pamene kutentha khofi nthunzi ikazizira, imapanganso cholimba. Chifukwa chake ndi njira yabwino kwambiri yolekanitsira ku zonyansa (zomwe sizitero wapamwamba). Chinthu chinanso chomwe chimatulutsa mpweya ndi carbon dioxide.

Pambuyo pake, wina angafunsenso, chifukwa chiyani mutha kukhala ndi caffeine?

Madzi khofi zitha kusamutsidwa ndikusefedwa vacuum. Zonyansa sizingatero wapamwamba ndi khofi chifukwa amafuna kusiyana kutentha ndi kuthamanga. M'malo mwake, the khofi ndi sublimated kuchokera crude mankhwala, kulola experimenters kusonkhanitsa khofi ndi kusiya zonyansa.

Chifukwa chiyani methylene chloride imagwiritsidwa ntchito pochotsa caffeine?

Apa organic zosungunulira dichloromethane ndi ntchito ku kuchotsa caffeine kuchokera kumadzi kuchotsa wa masamba a tiyi chifukwa khofi imasungunuka kwambiri dichloromethane (140 mg/ml) kuposa m'madzi (22 mg/ml). Kafeini kungayambitse dongosolo lamanjenje ndipo kungayambitse kupuma kwa kupuma ndi minofu ya mtima.

Yotchuka ndi mutu