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Monomethyl dodecanedioate (CAS # 3903-40-0)

Chemical Property:

Molecular Formula C13H24O4
Molar Mass 244.33 Nws
Qhov ntom 1.012 ± 0.06 g / cm3 (Tshaj tawm)
Melting Point 51.5-52 ° C
Boling Point 170 ° C (Nias: 3 Torr)
Flash Point 124.3°C dej
Solubility DMSO (me ntsis, rhaub), Methanol (me ntsis)
Vapor Siab 5.28E-06mmHg ntawm 25 ° C
Qhov tshwm sim Khoom
Xim Dawb
pKa 4.78 ± 0.10 (Kev kwv yees)
Kev cia khoom Muab kaw rau hauv qhuav, Chav Kub
Refractive Index 1.456 ib
Siv Rau kev sib xyaw ntawm cov txuj lom, kuj tuaj yeem siv los ua kev hloov pauv ntawm saturated polyester, hnyav hlau nag lossis daus tus neeg saib xyuas, tshwj xeeb polyurethane raw cov ntaub ntawv

Product Detail

Khoom cim npe

 

Taw qhia

Monomethyl dodecanedioate, tseem hu ua octylcyclohexylmethyl ester, yog cov organic compound.

 

Zoo:

- Cov tsos mob: Monomethyl dodecanedioate feem ntau pom ua kua tsis muaj xim.

- Solubility: Soluble nyob rau hauv organic solvents xws li cawv, ethers, thiab ketones.

- Ignition Point: Kwv yees li 127 ° C.

 

Siv:

- Monomethyl dodecanedioate yog ib qho tseem ceeb ntawm cov khoom siv raw, uas feem ntau siv rau hauv kev npaj cov roj nplua nyeem thiab cov roj nplua nyeem ua haujlwm siab.

- Nws kuj tuaj yeem siv los ua cov yas yas rau cov yas thiab cov roj hmab, txhim kho lawv cov kev yooj yim thiab kev ua haujlwm.

- Monomethyl dodecanedioate kuj tseem siv tau los ua cov khoom siv raw rau cov organic synthesis, xws li npaj dyes, fluorescents, melting agents thiab plasticizers.

 

Txoj kev:

Kev npaj ntawm monomethyl dodecanedioate feem ntau yog ua los ntawm cov kauj ruam hauv qab no:

1. Ntxiv dodecanedioic acid thiab methanol rau lub reactor.

2. Esterification cov tshuaj tiv thaiv ntawm qhov tsim nyog kub thiab siab feem ntau yuav tsum muaj cov catalyst xws li sulfuric acid los yog hydrochloric acid.

3. Tom qab qhov kawg ntawm cov tshuaj tiv thaiv, cov khoom yog sib cais thiab purified los ntawm filtration los yog distillation.

 

Cov ntaub ntawv kev nyab xeeb:

- Tsis txhob nqus pa, tiv nrog daim tawv nqaij thiab qhov muag. Cov cuab yeej tiv thaiv tsim nyog xws li hnab looj tes, tsom iav, thiab khaub ncaws tiv thaiv yuav tsum hnav thaum ua haujlwm.

- Tsis txhob sib cuag nrog cov oxidizing muaj zog thaum lub sij hawm cia thiab thauj mus los kom tsis txhob muaj hluav taws kub thiab tawg.

- Thaum tuav thiab pov tseg cov pov tseg, ua raws li cov cai thiab cov cai hauv zos, thiab pov tseg cov pov tseg kom tsim nyog.


  • Yav dhau los:
  • Tom ntej:

  • Sau koj cov lus ntawm no thiab xa tuaj rau peb