Igesi etshayo yahlulwe yaba yigesi enye etshayo kunye negesi exutyiweyo etshayo, eneempawu zokuba iyatsha kwaye iqhume. Ixabiso elilinganiselweyo lomxube ofanayo wegesi etshayo kunye negesi exhasa ukutsha ebangela ukuqhuma phantsi kweemeko zovavanyo eziqhelekileyo. Igesi exhasa ukutsha inokuba ngumoya, ioksijini okanye ezinye iigesi ezixhasa ukutsha.

Umda wokuqhuma ubhekisa kumda woxinzelelo lwegesi evuthayo okanye umphunga emoyeni. Umxholo ophantsi wegesi evuthayo onokubangela ukuqhuma ubizwa ngokuba ngumda wokuqhuma osezantsi; uxinzelelo oluphezulu lubizwa ngokuba ngumda wokuqhuma ophezulu. Umda wokuqhuma uyahluka ngokwezinto ezikumxube.

Iigesi ezixhaphakileyo ezinokutsha neziqhumayo ziquka ihydrogen, i-methane, i-ethane, i-propane, i-butane, i-phosphine kunye nezinye iigesi. Igesi nganye ineempawu ezahlukeneyo kunye nemida yokuqhuma.

I-hydrogen

I-Hydrogen (H2)yigesi engenambala, engenavumba, engenancasa. Lulwelo olungenambala xa luxinezelekile kwaye lushushu kancinci kwaye lunyibilika kancinci emanzini. Luvutha kakhulu kwaye lungaqhuma ngamandla xa luxutywe nomoya luze luhlangane nomlilo. Umzekelo, xa luxutywe ne-chlorine, lungaqhuma ngokwemvelo phantsi kwelanga; xa luxutywe ne-fluorine ebumnyameni, lungaqhuma; i-hydrogen ekwisilinda nayo ingaqhuma xa ishushu. Umda wokuqhuma kwe-hydrogen yi-4.0% ukuya kwi-75.6% (uxinzelelo lomthamo).

IMethane

IMethaneyigesi engenambala, engenavumba kwaye ikwiqondo lokubila eliyi -161.4°C. Ikhaphukhaphu kunomoya kwaye yigesi etshayo ekunzima kakhulu ukuyinyibilikisa emanzini. Yikhompawundi elula yendalo. Umxube we-methane nomoya ngomlinganiselo ofanelekileyo uya kuqhuma xa udibana nentlantsi. Umda ophezulu wokuqhuma yi % (V/V): 15.4, umda ophantsi wokuqhuma yi % (V/V): 5.0.

UEthane

I-Ethane ayinyibiliki emanzini, inyibilika kancinci kwi-ethanol nakwi-acetone, inyibilika kwi-benzene, kwaye ingenza imixube eqhumayo xa ixutywe nomoya. Kuyingozi ukutsha nokuqhuma xa ivezwe kwimithombo yobushushu kunye namalangatye avulekileyo. Iya kuvelisa iimpembelelo ezinamandla zeekhemikhali xa idibana ne-fluorine, i-chlorine, njl. Umda wokuqhuma ophezulu % (V/V): 16.0, umda wokuqhuma ophantsi % (V/V): 3.0.

Ipropane

I-Propane (C3H8), igesi engenambala, inokwenza imixube eqhumayo xa ixutywe nomoya. Kuyingozi ukutsha nokuqhuma xa ichaphazeleka kwimithombo yobushushu kunye namalangatye avulekileyo. Isabela ngamandla xa idibana nee-oxidants. Umda wokuqhuma ophezulu % (V/V): 9.5, umda wokuqhuma ophantsi % (V/V): 2.1;

I-N.butane

I-n-Butane yigesi engenambala etshayo, enganyibilikiyo emanzini, inyibilikayo lula kwi-ethanol, i-ether, i-chloroform kunye nezinye ii-hydrocarbon. Yenza umxube oqhumayo nomoya, kwaye umda wokuqhuma yi-19% ~ 84% (ngokuhlwa).

I-ethylene

I-Ethylene (C2H4) yigesi engenambala enevumba elimnandi elikhethekileyo. Inyibilika kwi-ethanol, i-ether kunye namanzi. Kulula ukuyitshisa nokuqhushumba. Xa umxholo osemoyeni ufikelela kwi-3%, ingaqhushumba nokutsha. Umda wokuqhuma yi-3.0 ~ 34.0%.

I-Acetylene

I-Acetylene (C2H2)yigesi engenambala enevumba elifana nele-ether. Inyibilika kancinci emanzini, inyibilika kwi-ethanol, kwaye inyibilika lula kwi-acetone. Kulula kakhulu ukuyitshisa nokuqhushumba, ingakumbi xa idibana ne-phosphides okanye i-sulfides. Umda wokuqhuma yi-2.5-80%.

Ipropylene

Ipropylene yigesi engenambala enevumba elimnandi xa ikwimeko eqhelekileyo. Inyibilika lula emanzini nakwi-acetic acid. Kulula ukuyiqhumisa nokuyitshisa, kwaye umda wokuqhuma yi-2.0 ~ 11.0%.

I-Cyclopropane

I-Cyclopropane yigesi engenambala enevumba le-petroleum ether. Inyibilika kancinci emanzini kwaye inyibilika lula kwi-ethanol nakwi-ether. Kulula ukuyitshisa nokuqhushumba, kwaye umda wokuqhuma yi-2.4 ~ 10.3%.

1,3 I-Butadiene

1,3 I-Butadiene yigesi engenambala nengenavumba, ayinyibiliki emanzini, inyibilika lula kwi-ethanol nakwi-ether, kwaye iyanyibilika kwisisombululo se-cuprous chloride. Ayizinzanga kakhulu kubushushu begumbi kwaye iyabola kwaye iqhume lula, ngomda wokuqhuma we-2.16 ~ 11.17%.

I-Methyl chloride

I-Methyl chloride (CH3Cl) yigesi engenambala, enyibilikiswa lula. Inencasa emnandi kwaye inevumba elifana nele-ether. Inyibilika lula emanzini, kwi-ethanol, kwi-ether, kwi-chloroform nakwi-glacial acetic acid. Kulula ukuyitshisa nokuyiqhumisa, kwaye umda wokuqhuma yi-8.1 ~ 17.2%