Mune Rudzi Rupi rweMamiriro Ekushanda Ari Kuputika-Uchapupu Nhamba Bt4 Inoshandiswa

Kirasi IIB inokodzera nharaunda uko musanganiswa unoputika weIIB magasi nemhepo zvinoitika.

Boka regesi/tembiricha boka	T1	T2	T3	T4	T5	T6
IIA	Formaldehyde, toluene, methyl ester, acetylene, propane, acetone, acrylic asidhi, benzene, styrene, carbon monoxide, ethyl acetate, acetic acid, chlorobenzene, methyl acetate, chlorine	Methanol, ethanol, ethylbenzene, propanol, propylene, butanol, butyl acetate, amyl acetate, cyclopentane	Pentane, pentanol, hexane, ethanol, heptane, octane, cyclohexanol, turpentine, naphtha, peturu (kusanganisira peturu), mafuta emafuta, pentanol tetrachloride	Acetaldehyde, trimethylamine		Ethyl nitrite
IIB	Propylene ester, dimethyl ether	Butadiene, epoxy propane, ethylene	Dimethyl ether, acrolein, hydrogen carbide
IIC	Hydrogen, gasi remvura	Acetylene			Carbon disulfide	Ethyl nitrate

Kuputika-uchapupu kupatsanurwa kuita nhanho dzekutanga dzemigodhi uye yechipiri nhanho kumafekitori. Mukati mechikamu chechipiri, sub-classifications inosanganisira IIA, IIB, uye IIC, mukukwira kwekugona kuputika-kugona: IIA < IIB < IIC. The 'T' category denotes tembiricha mapoka. A ‘T’ chiyero chinoreva kuti mudziyo unochengetedza tembiricha yepasi iri pasi pe135°C, neT6 iri iyo yakanyanya kuchengetedzwa mwero, kutsigira tembiricha yakaderera sezvinobvira.

Pakupedzisira, chigadzirwa ichi chinoputika chakagadzirwa se zvakachengeteka mudziyo wemagetsi, yakagadzirirwa kushandiswa nemagasi eKirasi B uko tembiricha yepasi isingadarike 135°C.