Dimethyl phthalate CAS 131-11-3 Hoobkas khoom

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Dimethyl phthalate CAS 131-11-3 Chaw tsim tshuaj paus nqi


  • Khoom npe:Dimethyl phthalate
  • CAS:131-11-3 : kuv
  • MF:C10H10O4
  • MW:194.18 Nws
  • EINECS:205-011-6
  • Cim:neeg tsim khoom
  • Pob:25 kg / nruas los yog 200 kg / nruas
  • Product Detail

    Khoom cim npe

    Kev piav qhia

    Khoom npe: Dimethyl phthalate / DMP

    CAS: 131-11-3

    MF: C10H10O4

    MW: 194.19

    Melting point: 2 ° C

    Kub taw tes: 282 ° C

    Ceev: 1.19 g / ml ntawm 25 ° C

    Pob: 1 L / lub raj mis, 25 L / nruas, 200 L / nruas

    Specification

    Cov khoom Specifications
    Qhov tshwm sim Cov kua dej tsis muaj xim
    Purity ≥99%
    Xim (Pt-Co) ≤ 20
    Acidity (mgKOH/g) ≤0.2
    Dej ≤ 0.5%

    Daim ntawv thov

    1.Nws yog siv los ua kuab tshuaj los ua methyl-ethyl ketone peroxide, flurocontaining anticorrosive txheej.

    2.Nws yog siv los ua plasticizer ntawm cellulose acetate, yoov tshaj cum thiab hnyav ntawm polyfluoroethylene txheej.

    3.Nws yog qhov nruab nrab ntawm rodenticide diphacin, Tetramine thiab chlorratone.

    Khoom

    Dimethyl phthalate yog xim tsis muaj pob tshab oily kua, me ntsis aromatic. Nws yog miscible nrog ethanol, ether, soluble nyob rau hauv benzene, acetone thiab lwm yam organic solvents, insoluble nyob rau hauv dej thiab ntxhia roj.

    Cia

    1. Khaws rau hauv qhov chaw txias, qhuav, kom deb ntawm hluav taws, hnub thiab nag. Tsis txhob cuam tshuam hnyav thaum thauj.

    2. Plasticizer nrog muaj zog dissolving muaj peev xwm. Siv los ua cov yas yas rau nitrile roj hmab, vinyl resin, cellulose acetate zaj duab xis, cellophane, kua roj vanish thiab molding hmoov, thiab lwm yam. Nws kuj tseem siv tau los ua ib qho hnyav rau kev npaj ntawm methyl ethyl ketone peroxide. Nws muaj cov yeeb yaj kiab zoo tshaj plaws, kev ua kom zoo thiab dej tsis kam, thiab siab thermal stability, tab sis nws yooj yim rau crystallize ntawm qhov kub thiab txias thiab muaj volatility siab. Yog li ntawd, nws yog feem ntau siv ua ke nrog plasticizers xws li diethyl phthalate rau roj hmab plasticization. Nws tuaj yeem txhim kho cov yas ntawm cov roj hmab sib txuas thaum nws siv los ua tus neeg sawv cev, tshwj xeeb tshaj yog tsim rau cov roj hmab nitrile thiab neoprene roj hmab. Nws kuj tseem siv tau los ua cov roj yoov tshaj cum thiab tshuaj tua kab mob. Nws muaj cov tshuaj tua kab mob rau cov kab nqus ntshav xws li yoov tshaj cum, sandflies, culms thiab gnats. Lub sij hawm rov ua haujlwm zoo yog 2 mus rau 4 teev.

    Kev ruaj ntseg

    1. Nws yog insoluble nyob rau hauv dej ntawm chav tsev kub, soluble nyob rau hauv feem ntau organic solvents thiab hydrocarbons, thiab muaj zoo compatibility nrog rau feem ntau industrial resins. Dimethyl phthalate yog combustible. Thaum nws ntes hluav taws, siv dej, ua npuas ncauj extinguishing agent, carbon dioxide, hmoov extinguishing tus neeg sawv cev los tua hluav taws.

    2. Cov khoom siv tshuaj lom neeg: Nws ruaj khov rau huab cua thiab cua sov, thiab tsis decompose thaum rhuab rau 50 teev nyob ze 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 me me ntawm decomposition tshwm sim. Cov khoom yog 4.6% dej, 28.2% phthalic anhydride, thiab 51% cov khoom nruab nrab. Tus so yog formaldehyde. Nyob rau tib lub sijhawm, 36% ntawm 608 ° C, 97% ntawm 805 ° C, thiab 100% ntawm 1000 ° C muaj pyrolysis.

    3. Thaum dimethyl phthalate hydrolyzed nyob rau hauv methanol tov ntawm caustic potassium ntawm 30 ° C, 22.4% hauv 1 teev, 35.9% hauv 4 teev, thiab 43.8% hauv 8 teev yog hydrolyzed.

    4. Dimethyl phthalate reacts nrog methylmagnesium bromide nyob rau hauv benzene, thiab thaum rhuab ntawm chav tsev kub los yog nyob rau hauv ib da dej, 1,2-bis (α-hydroxyisopropyl) benzene yog tsim. Nws reacts nrog phenyl magnesium bromide los tsim 10,10-diphenylanthrone.


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