Tlhahiso indasteri ea ethylene glycol

Ethylene glycol - ke hanyenyane viscous, mafura, odorless mokelikeli. Ke haholo qhibilihang ka har'a ka alcohols, metsi, monohalogen acetone le turpentine. Ethylene glycol ke motheo bakeng sa antifreeze likoloi le ba ntlo kaha e lowers monyako bakeng sa leqhoa tsa metsi le tharollo ea metsi. E le hantle e thahasellisang ke hore esita le mokelikeli ho hoammeng ha a phekola, ho retelehela ka leqhoa, 'me feela fetoha bo hlephileng. Ho feta moo, ditharollo ea metsi ea ethylene glycol ha atolosa 'me ka hona u se ke ua senya methapo le radiator ka koloi.

boitsebiso boo o phahameng haholo hygroscopic, i.e. monyang metsi a tsoang tikoloho (moea, likhase tse fapa-fapaneng). Tlhahiso indasteri ea ethylene thehoa dimela lik'hemik'hale tse ngata. E lokela ho a hopola hore ntho e nang le chefo e, le hoja ho na le tatso e monate. Ka lebaka leo, sebelisana le eona ke ho hlokahala hore ho nka mehato. Lipara tsa dintho na se phahameng haholo toxicity le ka 'na etsa hore kotsi ho bophelo bo botle feela ka inhalation tsa bona nako e telele. Ethylene glycol - e mabapi mafura. Phahameng concentrations ea mouoane moeeng tse phatlohang, empa ka motsoako ka metsi, ethylene glycol lahleheloang thepa tsena.

kopo

Ethylene glycol e sebediswa masimong a sa tšoaneng le liindasteri: likoloi, lik'hemik'hale, Aerospace, Textile, motlakase, oli le khase. E mong oa dikopo bohlokoa ka ho fetisisa ea boitsebiso boo ke tlhahiso ea coolants le antifreeze. Ka lebaka la ho se ho hlokahala phahameng bakeng sa tlhahiso ea indasteri ea ethylene fetohile haholo. sehlahisoa sena ka sebelisoa ka solvent bakeng sa lihlahisoa tsa pente.

Mekhoa ea ho lokisetsa ethylene glycol

Tsamaiso ya ba lokisetsa ho ea lithethefatsi le haholo lintho tse ngata, empa bakeng sa tlhahiso ea liindasteri ha lumellane kaofela ha bona. E mong oa mekhoa e ratoang ka ho fetisisa ke ba lokisetsa ho ea ethylene glycol ka ho sebelisa ho kena moea ho qetela ke oksijene ka boteng ba sethothetsi silevera, lateloa ke hydration morago ga moo. Leha ho le joalo, ya tlhokeho ntse ke mokhoa o mong. Ba lokisetsa ho ea ethylene glycol ke hydrolysis ea ethylene. Maemong ao ka bobeli, e hydration itsoara joang ka tsa oxide e ethylene hlahiswa ka pel'a etswa ha le ka mocheso phahameng. Ka lingoliloeng, ho na le boetse ho na le mokhoa oo ba lokisetsa ho ea ethylene glycol e etsoang ke itšoara metsi, formaldehyde le carbon monoxide. asiti Glycolic fumanweng ka mohato oa pele e tlas'a esterification ho fa Ester. Ka mor'a moo, e hydrogenated ho ethylene glycol. Lewa lena le sebelisitsoe ka United States.

Sehlahisoa sephetho le e feletseng e hloekileng, hobane esita le ngata e nyenyane ea contaminants Link hampe ama thepa ea eona. Ka mohlala, ka ho ba teng ha ethylene glycol ka ho hlophisoa ha dintho tse kang diethylene glycol le polyglycols, botsitso lona mogote e haholo tsa fokotswa. Ka hona, le boleng bo phahameng Peresente sehlahisoa dikgokelo Link lokela ho fokotsa. Sena ke 'nete haholo-holo oa metsoako ditlelorine le aldehydes. Misa karoloana ea ho motsoako mantlha e lokela ho ba bonyane 99,5%.