Txawm li cas los 131-11-3
Khoom npe: Dimethyl phthalate / dmp
CAS: 131-11-3
Mf: c10h10o4
MW: 194.19
Melting taw tes: 2 ° C
TUB NTIAJ TEB: 282 ° C
Ntsej Muag: 1.19 g / ml ntawm 25 ° C
Pob: 1 L / Lub raj mis, 25 L / Nruas, 200 l / Nruas
1.Nws siv tau siv raws li cov kuab tshuaj rau kev tsim cov methyl-ethyl ketone peroxide, flurocontaining tshuaj tiv thaiv kab mob.
2.Nws siv tau siv raws li cov yas cellulose ntawm cellulose acetate, yoov pleev yoov thiab hnyav ntawm polyfluoroethylene txheej.
3.Nws yog qhov nruab nrab ntawm Rodenticide Diphaacin, Tetramine thiab Chlorratone.
Yas:DMP feem ntau siv los txhim kho qhov yooj yim, ruaj khov thiab txheej txheem ntawm cov yas plastics, tshwj xeeb yog polyvinyl chloride (PVC) thiab lwm cov polymers.
Siab: Nws tuaj yeem siv los ua cov kuab tshuaj nyob rau ntau hom, suav nrog cov xim av, cov xim pleev xim thiab cov nplaum.
Tshuaj pleev ib ce thiab cov khoom siv saib xyuas tus kheej:Qee lub DMP qee zaum siv hauv cov tshuaj pleev ib ce, xws li cov tshuaj tsw qab thiab cov ntsia hlau ntsia hlau, txhawm rau txhim kho kev ntxhib los mos thiab ruaj khov.
Tshuaj:Yuav siv tau los ua kom zoo nyob rau hauv kev tsim cov tshuaj qee yam.
Kev Tshawb Fawb:DMP tseem siv nyob rau hauv ntau cov tshuaj syntheses thiab kev tshawb fawb hauv kev kuaj sim chaw.
Dimethyl phthalate yog tsis muaj pob tshab oily kua, muaj ntxhiab me me. Nws yog me ntsis nrog ethanol, eth, soluble hauv benzene, acetone thiab lwm yam kuab tshuaj organic, insoluble hauv dej thiab roj ntxhia.
1. Khaws cia rau hauv qhov chaw ua si txias, qhuav, kom deb ntawm hluav taws, hnub thiab nag. Zam kev ua phem rau thaum lub sijhawm thauj mus los.
2. Yas kom muaj peev xwm dissolving muaj zog. Siv los ua cov yas roj hmab rau cov roj hmab nitrile, yas acetate zaj duab xis, cellulose acetate zaj duab xis, kua roj volt rau kev npaj ntawm methyl ketream peroxide. Nws muaj cov yeeb yaj kiab zoo heev-tsim, adhesion thiab dej tsis kam, thiab nws yog ib qho yooj yim rau crystallize ntawm qhov kub tsawg thiab muaj lub tshuab hluav taws xob yooj yim. Yog li ntawd, nws feem ntau yog siv hauv kev sib xyaw nrog cov plev nrog xws li diethyl phthalate rau cov roj hmab yas. Nws tuaj yeem txhim kho cov plasticity ntawm cov roj hmab sib txuas thaum nws tau siv ua tus neeg sawv cev, tshwj xeeb yog haum rau cov roj hmab nitrile thiab neoprene roj hmab. Nws kuj tseem siv tau ua cov roj tiv thaiv yoov tshaj cum thiab pleev tshuaj. Nws muaj cov tshuaj pleev xim rau cov ntshav-nqus cov kab xws li yoov tshaj cum, pob zeb, culms thiab cov gnats. Lub sijhawm ua haujlwm zoo yog 2 txog 4 teev.
1. Nws yog insoluble hauv dej ntawm chav tsev kub, soluble nyob rau hauv feem ntau cov emvents organic thiab hydrocarbons, thiab muaj kev sib raug zoo nrog cov khoom muaj ntau. Dimethyl phthalate yog combustible. Thaum nws ntes hluav taws, siv dej, ua npuas ncauj tua tus neeg sawv cev, carbon dioxide, hmoov extinguishishing tus neeg sawv cev rau tua hluav taws.
2. Tshuaj lom neeg: Nws ruaj khov rau huab cua thiab tshav kub, thiab tsis decompose thaum rhuab rau 50 teev nyob ze rau ntawm lub boiling point. Thaum lub vapor ntawm Dimethyl phthalate dhau los ntawm 450 ° C cua sov rauv ntawm tus nqi ntawm 0.4g / min, tsuas yog ib qho me me ntawm kev txiav txim siab tshwm sim. Cov khoom yog 4.6% dej, 28,2% phthalic anhydride, thiab 51% nruab nrab tshuaj. Tus so yog formaldehyde. Raws li tib qho kev mob, 36% ntawm 608 ° C, 97% ntawm 805 ° C, thiab 100% ntawm 1000 ° C muaj pyrolysis.
3. Thaum Duethyl phthalate yog hydrolyzed nyob rau hauv lub caustlic poov tshuaj ntawm 30 ° C, 22.4% hauv 4 teev, thiab 43.8% hauv 8 teev yog hydrolyzed.
4. Dimethyl phthalate reacts nrog metylmagnesium bromide hauv chav sov lossis ntawm cov dej da dej, 1,2-bis (α-hydroxyiscooproyl) benzene yog tsim. Nws reacts nrog phenyl magnesium bromide kom tsim 10,10-diphenylanthone.
