2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Kev rho tawm cov khoom los ntawm cov khoom khib nyiab lossis kua raws li kev siv SCFs hauv kev lag luam. Qhov zoo ntawm kev siv sub thiab supercritical kua nyob rau hauv tunability ntawm hnyav zog. … Supercritical fluids yog solvents rau yav tom ntej.
Vim li cas cov kua dej supercritical yog cov kuab tshuaj zoo?
Lub peev xwm ntawm supercritical CO2 ua kom yaj mus rau hauv cov polar organic hnyav thiab nthuav qhov ntim ntawm cov kuab tshuaj 10 npaug txo qhov solubility ntawm yaj tebchaw thiab pib nag lossis daus ntawm yav tas los yaj hais nyob rau hauv lub expanded hnyav.
Puas yog cov kua dej supercritical yog cov kuab tshuaj?
Supercritical fluids muaj solvent power zoo ib yam li lub teeb hydrocarbon rau feem ntau cov kuab tshuaj . Txawm li cas los xij, cov tshuaj fluorinated feem ntau yog soluble ntau dua hauv scCO2 dua li hauv hydrocarbons; Qhov no nce solubility yog ib qho tseem ceeb rau polymerization. Solublity nce nrog nce ceev (piv txwv li nrog nce siab).
Cov kua dej supercritical hloov pauv yog dab tsi?
Lawv yog siv los hloov cov kuab tshuaj organic hauv ntau qhov kev lag luam thiab cov txheej txheem kuaj. Cov pa roj carbon dioxide thiab dej yog cov kua dej ntau tshaj plaws; lawv feem ntau siv rau decaffeination thiab tsim hluav taws xob, feem.
Vim li cas cov kua dej supercritical tseem ceeb?
Ib qho ntawm cov khoom tseem ceeb ntawmsupercritical fluids yog lawv lub peev xwm los ua cov kuab tshuaj. Solubility nyob rau hauv cov kua supercritical zoo li nce nrog qhov ceev ntawm cov kua (ntawm qhov kub thiab txias). Txij li qhov ceev nce nrog siab, solubility nyhav nce nrog siab.
Pom zoo:
Puas yog dab liab liab nyob rau hnub yav tom ntej?
Muaj kev npaj rau kab hais txog Scarlet Witch hauv X-Txiv Neej: Hnub Yav Tom Ntej, tab sis qhov xwm txheej raug txiav los ntawm zaj yeeb yaj kiab kawgthiab suav nrog Rogue Cut. Vim li cas Wanda tsis nyob hauv Hnub Nyoog Yav Tom Ntej? Vim li cas Wanda Maximoff tsis nyob hauv X-Txiv Neej:
Puas yog daim ntawv cog lus yooj yim rau kev ncaj ncees yav tom ntej?
Daim ntawv cog lus yooj yim rau kev ncaj ncees rau yav tom ntej (SAFE) yog daim ntawv cog lus ntawm tus neeg ua lag luam thiab lub tuam txhab uas muab cov cai rau cov neeg ua lag luam rau yav tom ntej kev ncaj ncees hauv tuam txhab zoo ib yam li daim ntawv cog lus, tshwj tsis yog tias tsis tau txiav txim siab tus nqi tshwj xeeb rau ib feem ntawm lub sijhawm pib nqis peev.
Cov piv txwv ntawm cov kuab tshuaj thiab cov kuab tshuaj yog dab tsi?
Solutes yog cov khoom uas yaj rau hauv cov kuab tshuaj thiab peb xaus nrog kev daws. Qee qhov piv txwv ntawm cov kuab tshuaj yog dej, ethanol, toluene, chloroform, acetone, mis nyuj, thiab lwm yam. Piv txwv ntawm cov kuab tshuaj muaj xws li, qab zib, ntsev, oxygen, thiab lwm yam … Cov dej dej muaj dej (kua kua) thiab yaj oxygen (solute).
Dab tsi yog cov reactants thiab cov khoom ntawm cov tshuaj tiv thaiv rau pem hauv ntej (sab laug-rau-txoj cai)?
Dab tsi yog cov reactants thiab cov khoom ntawm cov tshuaj tiv thaiv rau pem hauv ntej (sab laug-rau-txoj cai)?Glucose thiab Fructose yog cov reactants. Sucrose thiab Dej yog cov khoom. Puas yog cov tshuaj tiv thaiv tom ntej yog cov tshuaj tiv thaiv condensation lossis cov tshuaj tiv thaiv hydrolysis?
Puas muaj cov kuab tshuaj ntau dua li cov kuab tshuaj?
Ib tshuaj yog ib homogeneous sib tov ntawm ob los yog ntau tshaj tshuaj. Cov khoom uas muaj nyob rau hauv qhov loj tshaj plaws yog hu ua cov kuab tshuaj thiab ib qho tam sim no nyob rau hauv lub me me yog hu ua ib tug solute. Tsuas muaj ib qho kuab tshuaj xwb, tab sis muaj peev xwm ua tau ntau yam.
