Ipropylene glycol CAS: 57-55-6
Intshayelelo yemveliso
Igama lesayensi lepropylene glycol yi "1,2-propanediol". I-racemate lulwelo lwe-hygroscopic viscous kunye nencasa ebabayo kancinane. Ixubene emanzini, i-acetone, i-ethyl acetate kunye ne-chloroform, kwaye i-soluble kwi-ether. Inyibilika kwiioyile ezininzi ezibalulekileyo, kodwa ayixutywanga nepetroleum ether, iparafini kunye negrisi. Izinzile xa ithelekiswa nobushushu kunye nokukhanya, kwaye izinzile kumaqondo aphantsi. Ipropylene glycol inokuthi ifakwe kwipropionaldehyde, i-lactic acid, i-pyruvic acid kunye ne-acetic acid kumaqondo aphezulu.
Ipropylene glycol yi-diol kwaye ineempawu zotywala jikelele. Iphendula kunye neeasidi eziphilayo kunye neeasidi ezingaphiliyo ukuvelisa iimonoesters okanye iidiesters. Isabela ngepropylene oxide ukwenza iether. Iphendula ngehydrogen halide ukwenza iihalohydrins. Idibana ne-acetaldehyde ukwenza i-methyldioxolane, engenambala, i-viscous kunye nolwelo olufunxayo oluzinzileyo lwamanzi, oluphantse lungabinancasa kwaye alunavumba. Ixutywe namanzi, i-ethanol kunye nezinyibilikisi ezahlukeneyo zezinto eziphilayo.
Indawo yosetyenziso
Isetyenziswa njengemathiriyeli ekrwada yeentlaka, iiplasticizers, surfactants, emulsifiers and demulsifiers, kunye ne antifreeze kunye nezithwala ubushushu.
Inkcazo yokwakha
Ipropylene glycol
CAS:57-55-6
Ifomula yemolekyuli C3H8O2
ubunzima bemolekyuli 76.09
Inombolo ye-EINECS 200-338-0
Indawo yokunyibilika -60 °C (lit.)
Indawo yokubila yi-187 °C (lit.)
Uxinzelelo 1.036 g/mL ku-25 °C (lit.)
Uxinzelelo lomphunga 2.62 (vs umoya)
Uxinzelelo lomphunga 0.08 mm Hg ( 20 °C)
Refractive index n20 /D 1.432(lit.
Ukugcinwa kunye nokuthutha
Ukupakisha: ngokweemfuno zabathengi
Ugcino: Gcina kwindawo eyomileyo, emnyama nengena umoya.
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