Kev Kub Kub Kub Kub ntawm Butane thiab Gasoline Torches
Cov nplaim hluav taws kub ntawm lub teeb hluav taws xob ntau tshaj 1300 degree, qhov kub ntawm cov hluav taws kub ntawm cov roj hluav taws kub ntawm 800℃txog 1000 degree.
Butane yog cov roj tsis muaj xim nrog cov ntxhiab tsw tsw qab. Nws yog insoluble hauv dej tab sis yooj yim soluble hauv cawv thiab chloroform. Nws yog heev flammable thiab tawg. Nws yog siv los ua cov kuab tshuaj, cov tub yees, thiab cov khoom siv raw rau cov organic synthesis. Ib txwm butane muaj nyob rau hauv cov roj av, cov nkev ntub dej, thiab cov pa tawg, los ntawm cov txheej txheem sib cais.
Roj av (lub npe hu ua * Petrol * hauv Askiv Askiv) yog pob tshab, combustible kua nrog distillation ntau ntawm 30℃txog 220 degree. Nws cov ntsiab lus tseem ceeb yog C5-C12 aliphatic thiab cycloaliphatic hydrocarbons, nrog rau qee qhov kev faib ua feem ntawm cov pa roj carbon monoxide. Cov roj av muaj qhov ntsuas octane siab (qhia nws qhov kev tiv thaiv rau lub cav tsoo lossis tawg) thiab muab faib ua ntau qib -xws li 90, 93, 95, thiab 97- raws li qhov loj ntawm qhov ntsuas octane no. Cov roj av yog tsim los ntawm kev sib xyaw ntau yam khoom ua kom zoo dua qub los ntawm cov roj av refining-xws li ncaj- roj av, catalytically cracked roj av, thiab catalytically hloov pauv roj av- nrog siab - octane additives; nws feem ntau yog siv los ua roj rau lub txim taws-ignition sab hauv combustion xyaw hauv tsheb.
