thylene glycol
Cov lus txhais ua lus Askiv
Ethylene glycol, 1, 2-ethylenediol, EG luv luv
cov yam ntxwv tshuaj lom neeg
Cov mis tshuaj: (CH2OH) 2 Qhov hnyav molecular: 62.068 CAS: 107-21-1 EINECS: 203-473-3 [5 Melting point: -12.9 ℃ Boiling point: 197.3 ℃
Kev taw qhia txog khoom thiab nta
CH2OH 2, uas yog diol yooj yim tshaj plaws. Ethylene glycol yog cov kua tsis muaj xim, tsis muaj ntxhiab, qab zib nrog kev lom tsawg rau tsiaj txhu. Ethylene glycol tuaj yeem yaj tau nrog dej thiab acetone, tab sis nws cov solubility hauv ethers yog me me. Siv ua cov kuab tshuaj, tshuaj tiv thaiv kev khov thiab cov khoom siv polyester hluavtaws. Cov polymer ntawm ethylene glycol, polyethylene glycol (PEG), yog cov tshuaj hloov pauv theem thiab kuj siv rau hauv kev sib xyaw ua ke ntawm tes.
siv
Feem ntau siv rau kev ua polyester, polyester, polyester resin, cov khoom siv nqus dej noo, cov khoom siv yas, cov khoom siv ua kom nto, cov khoom siv ua los ntawm cov fiber, cov tshuaj pleev ib ce thiab cov khoom tawg, thiab siv ua cov kuab tshuaj rau cov xim pleev, cov kua mem, thiab lwm yam, kev npaj cov tshuaj tiv thaiv kev khov ntawm lub cav, cov tshuaj ua kom cov roj qhuav, kev tsim cov resin, kuj siv tau rau cellophane, fiber, tawv, cov khoom siv ntub dej nplaum. Nws tuaj yeem tsim cov tshuaj PET, cov fiber PET uas yog polyester fiber, lub raj mis PET rau kev ua cov fwj dej ntxhia thiab lwm yam. Kuj tseem tuaj yeem tsim cov alkyd resin, glyoxal, thiab lwm yam, kuj siv ua cov tshuaj tiv thaiv kev khov. Ntxiv nrog rau kev siv ua cov tshuaj tiv thaiv kev khov rau tsheb, nws kuj siv rau kev thauj mus los ntawm cov khoom siv txias hauv kev lag luam, feem ntau hu ua cov khoom siv txias, thiab kuj siv tau ua cov khoom siv condensing zoo li dej.
Cov khoom lag luam Ethylene glycol methyl ether series yog cov tshuaj organic zoo, xws li cov kua luam ntawv, cov tshuaj ntxuav kev lag luam, txheej (xim nitro fiber, varnish, enamel), phaj tooj liab, luam ntawv thiab zas xim cov tshuaj thiab cov tshuaj diluents; Nws tuaj yeem siv ua cov khoom siv raw rau cov khoom siv tshuaj xws li tshuaj tua kab intermediates, tshuaj intermediates thiab cov kua nres hluavtaws. Raws li electrolytes rau electrolytic capacitors, tshuaj fiber dyeing tus neeg sawv cev rau tanning, thiab lwm yam. Siv ua cov khoom pabcuam textile, cov kua dyes hluavtaws, nrog rau chiv thiab roj refining hauv kev tsim cov khoom siv desulfurizer raw.
Thaum siv Ethylene glycol ua ib lub refrigerant, yuav tsum nco ntsoov cov hauv qab no:
1. Lub ntsiab lus khov hloov pauv raws li qhov concentration ntawm ethylene glycol hauv cov kua dej. Thaum qhov concentration qis dua 60%, qhov taw tes khov txo qis nrog qhov concentration ntawm ethylene glycol hauv cov kua dej nce, tab sis thaum qhov concentration tshaj 60%, qhov taw tes khov nce nrog qhov concentration ntawm ethylene glycol nce, thiab viscosity nce nrog qhov concentration nce. Thaum qhov concentration ncav cuag 99.9%, nws qhov taw tes khov nce mus txog -13.2 ℃, uas yog ib qho laj thawj tseem ceeb vim li cas cov tshuaj tiv thaiv khov (antifreeze niam kua) tsis tuaj yeem siv ncaj qha, thiab yuav tsum nyiam cov neeg siv mloog.
2. Ethylene glycol muaj hydroxyl pawg, uas yuav raug oxidized rau glycolic acid thiab tom qab ntawd mus rau oxalic acid, uas yog, glycolic acid (oxalic acid), muaj 2 carboxyl pawg, thaum nws ua haujlwm ntawm 80-90 ℃ rau lub sijhawm ntev. Oxalic acid thiab nws cov khoom lag luam cuam tshuam rau thawj qhov kev puas tsuaj rau lub paj hlwb hauv nruab nrab, tom qab ntawd lub plawv, thiab tom qab ntawd lub raum. Ethylene glycol glycolic acid, ua rau xeb thiab xau ntawm cov khoom siv. Yog li ntawd, thaum npaj cov tshuaj antifreeze, yuav tsum muaj cov tshuaj preservative los tiv thaiv kev xeb ntawm hlau, txhuas thiab kev tsim cov nplai.
pob khoom thiab kev thauj mus los
B. Cov khoom no siv tau,,25KG, 200KG, 1000KGBAERRLS。
C. Khaws cia rau hauv qhov chaw txias, qhuav thiab muaj cua nkag hauv tsev. Yuav tsum kaw cov thawv kom nruj tom qab siv txhua zaus ua ntej siv.
D. Cov khoom no yuav tsum tau kaw zoo thaum lub sijhawm thauj mus los kom tiv thaiv cov dej noo, alkali thiab acid muaj zog, nag thiab lwm yam tsis huv los ntawm kev sib tov.
