Dimethyl carbonate is an organic compound ine kemikari formula C3H6O3.Ikemikari raw material ine yakaderera toxicity, yakanakisa kuchengetedza kwezvakatipoteredza zvivakwa uye zvakasiyana-siyana zvekushandisa.Iyo yakakosha organic synthesis yepakati.Iine maitiro ekusvibisa zvishoma uye kutakura nyore.Kuonekwa kwe dimethyl carbonate imvura isina ruvara ine hwema hwema;molecular uremu ndeye 90.078, isinganyunguriki mumvura, yakasanganiswa mune yakawanda organic solvents, miscible muasidhi uye mabhesi.
Kushandisa dimethyl carbonate
(1) Tsiva phosgene se carbonylating agent
DMC ine yakafanana nucleophilic reaction centre.Apo boka re carbonyl reDMC rinorwiswa ne nucleophile, acyl-oxygen bond inoputsika kuti iite carbonyl compound, uye by-product methanol.Naizvozvo, DMC inogona kutsiva phosgene seyakachengetedzeka reagent kugadzira carbonic acid inobuda., Polycarbonate ichava nzvimbo ine kudiwa kukuru kweDMC.
(2) Inotsiva dimethyl sulfate semethylating agent
Kana iyo methyl kabhoni yeDMC inorwiswa nenucleophile, iyo alkyl-oxygen bond inoputswa, uye chigadzirwa chemethylated chinogadzirwawo, uye maitiro ekuita goho reDMC akakwira kupfuura edimethyl sulfate, uye maitiro acho ari nyore.Iko kushandiswa kukuru kunosanganisira synthetic organic intermediates, zvigadzirwa zvemishonga, mishonga yezvipembenene, nezvimwe.
(3)low toxicity solvent
DMC ine yakanakisa solubility, yakamanikana kunyunguduka uye kufashaira poindi nzvimbo, hombe tension, yakaderera viscosity, yakaderera dielectric kugara, yakanyanya evaporation tembiricha uye nekukurumidza evaporation rate, saka inogona kushandiswa seyakaderera-chepfu solvent yekukoira Industrial uye mishonga maindasitiri.DMC haingove yakaderera muhupfu, asi inewo hunhu hwekupenya kwepamusoro, kuderera kwemhute uye kuderera kwekuputika mumhepo, saka inonyungudutsa yakasvibira inobatanidza kuchena uye kuchengeteka.
(4)Gasoline additives
DMC ine zvimiro zveokisijeni yakakwira (inosvika 53% okisijeni yemukati mumorekuru), yakanakisa octane-inosimudzira mhedzisiro, hapana kupatsanurwa kwechikamu, yakaderera muchetura uye nekukurumidza biodegradability, uye inoderedza huwandu hwemahydrocarbons, kabhoni monoxide uye formaldehyde mukubuda kwemotokari. .Pamusoro pezvo, inokundawo zvikanganiso zvezvakajairwa peturu zvinowedzera zvinonyungudika mumvura uye zvinosvibisa zvitubu zvemvura yepasi.Naizvozvo, DMC ichava imwe yeanogona kuwedzera peturu kutsiva MTBE.
Kuchengeta uye Kutakurwa kweDimethyl Carbonate
Kuchengetedza:Inopisa, uye mhute yaro inosanganiswa nemhepo, iyo inogona kuumba musanganiswa unoputika.Zvichengete munzvimbo inotonhorera, yakaoma, uye inofefetera zvakanaka isingabatike.Ramba kure nemoto nekupisa.Tembiricha yeraibhurari haifanire kudarika 37 ℃.Chengeta mudziyo wakavharwa zvakasimba.Inofanira kuchengetwa zvakasiyana kubva kune oxidants, kuderedza vamiririri, acids, nezvimwewo, uye haifaniri kusanganiswa.Shandisa mwenje unodzivirira kuputika uye nzvimbo dzekupinza mhepo.Rambidza kushandiswa kwemichina nematurusi anowanzo pfumvutira.Iyo nzvimbo yekuchengetera inofanirwa kuve neyakavuza yekukurumidzira yekurapa midziyo uye yakakodzera midziyo yemidziyo, iyo inofanirwa kuchengetwa munzvimbo inotonhorera, yakaoma uye ine mhepo yakanaka isingabatike.
Zvifambiso zvekuchengetedza:Packing Marks Inopisa Liquid Packaging Method Yakajairika bhokisi remapuranga kunze kwema ampoules;Bhokisi remapuranga rakajairwa kunze kwemabhodhoro egirazi, iron-capped glass mabhodhoro, mabhodhoro epurasitiki kana mbiya dzesimbi (magaba) Chekufambisa Chekufambisa Mota dzekufambisa dzimotokari dzekudzivirira moto uye kuvuza kwemidziyo yekurapa yekukurumidzira zvinofanirwa kuve nemhando uye huwandu hunoenderana.
Nguva yekutumira: Sep-07-2022