Kev xaiv ntawm cov kuab tshuaj nyob ntawm tsis yog tsuas yog nyob ntawm nws tus kheej physicochemical zog tab sis kuj nyob ntawm nws compatibility nrog rau qhov tseeb siv ib puag ncig. Ib puag ncig siv tau suav nrog ntau yam, suav nrog kub, siab, av noo, cov yam ntxwv ntawm cov tshuaj tiv thaiv, kev tswj hwm kev nyab xeeb, thiab kev txwv ecological. Tsuas yog thaum cov kuab tshuaj muaj peev xwm tswj tau qhov kev ua haujlwm ruaj khov thiab tswj tau cov kev pheej hmoo hauv ib puag ncig nws tuaj yeem ua tiav nws txoj haujlwm xav tau tiag tiag, sib npaug ntawm kev tsim khoom thiab cov hom phiaj kev txhim kho kom ruaj khov.
Qhov kub thiab txias yog qhov tseem ceeb cuam tshuam. Qhov sib txawv tseem ceeb hauv qhov kub kub, qhov chaw khov, thiab thermal stability ntawm cov kuab tshuaj sib txawv txiav txim siab lawv qhov kub thiab txias ua haujlwm. Nyob rau hauv siab - cov txheej txheem kub xws li polymerization lossis catalytic hydrogenation, cov kuab tshuaj nrog cov thermal stability zoo thiab cov ntsiab lus kub kub yuav tsum raug xaiv kom tsis txhob decomposition, volatilization, los yog sai li sai tau nce siab uas yuav ua rau muaj kev nyab xeeb. Nyob rau hauv qis- ib puag ncig kub lossis thaj chaw txias, qhov hnyav qhov chaw khov yuav tsum tau txiav txim siab thaum lub sijhawm khaws cia thiab kev thauj mus los los tiv thaiv crystallization uas tuaj yeem txhaws cov kav dej lossis ua rau cov khoom siv tsis ua haujlwm. Rau qhov dav -qhov kub thiab txias- ntau yam kev siv, kev ntsuas cua sov lossis ntsuas cua sov yog qee zaum tsim nyog los tswj cov dej ntws.
Kev kub siab ib puag ncig kuj txwv kev xaiv hnyav. Feem ntau qis - boiling - cov kuab tshuaj taw tes tuaj yeem siv tau zoo nyob rau hauv lub siab ib txwm. Txawm li cas los xij, nyob rau hauv kaw los yog pressurized cov tshuaj tiv thaiv kab mob, lub vapor siab thiab compressibility ntawm cov kuab tshuaj yuav hloov lub system siab tis, yuav tsum tau kev ntsuam xyuas ntawm lub thawv lub siab- bearing peev xwm thiab siab nyem tsim. Cov kua dej supercritical, raws li cov kuab tshuaj tshwj xeeb, vam khom ntau dua rau qhov tseeb siab- tswj qhov kub thiab txias los txhawb lawv cov solubility zoo dua thiab cov khoom hloov pauv loj.
Humidity thiab atmospheric tej yam kev mob ho cuam tshuam hnyav stability. Cov kuab tshuaj hygroscopic siab heev, xws li cawv thiab ketones, yooj yim nqus dej noo los ntawm huab cua, hloov lawv cov concentration thiab polarity, yog li cuam tshuam nrog kev xaiv cov tshuaj tiv thaiv lossis kev txheeb xyuas qhov tseeb. Yog li ntawd, nyob rau hauv qhov chaw ntub dej, kev sib khi, kev tiv thaiv nitrogen qhuav, lossis ua ntej - kev kho dej yuav tsum tau ua. Rau cov kuab tshuaj oxidized yooj yim, cov ntsiab lus oxygen nyob rau hauv ib puag ncig yuav tsum tau tswj, los yog cov tshuaj antioxidants yuav tsum tau ntxiv kom ntev lawv cov kev pab cuam lub neej thiab txo qhov kev pheej hmoo ntawm kev mob tshwm sim.
Kev nyab xeeb thiab kev tswj hwm ib puag ncig yog qhov tsis txaus ntseeg sab nraud. Ntau lub teb chaws thiab cheeb tsam muaj kev txwv nruj thiab kev txwv ntawm kev khaws cia, kev thauj mus los, thiab kev siv cov nplaim hluav taws, tshuaj lom, thiab cov kuab tshuaj carcinogenic. Cov tuam txhab lag luam yuav tsum ua raws li cov chaw khiav hauj lwm thiab cov chaw tiv thaiv raws li cov kuab tshuaj lub teeb nyem, txwv tsis pub tawg, thiab cov ntaub ntawv muaj kuab lom, thiab ua kom muaj kev sib raug zoo rau kev cob qhia cov neeg ua haujlwm thiab cov phiaj xwm teb xwm txheej ceev.
Cov kev xav tau ntawm ib puag ncig ecological yog tsav lub evolution ntawm kev siv ib puag ncig mus rau ntsuab thiab qis - cov lus qhia carbon. Tsawg-volatility, biodegradable, thiab tsis yog - tshuaj lom lossis qis- cov kuab tshuaj lom neeg muaj feem yuav ua tau raws li cov qauv nruj thiab kev kho cov pov tseg thiab yog qhov tsim nyog rau siv nyob rau hauv ib puag ncig rhiab heev los yog huv si hauv tsev.
Hauv cov ntsiab lus, qhov chaw siv tau rau cov kuab tshuaj muaj kev sib txuam ntawm lub cev, cov txheej txheem txheej txheem, kev tswj hwm kev nyab xeeb, thiab kev txwv ecological. Tsuas yog los ntawm kev soj ntsuam kev tshawb fawb thiab kev txiav txim siab tag nrho ntawm cov xwm txheej no hauv cov txheej txheem tsim qauv tuaj yeem ua tiav, kev nyab xeeb, thiab kev siv hnyav hnyav.