Dimethyl azelate (CAS # 1732-10-1)

Taw qhia

Dimethyl azelaic acid (tseem hu ua Dioctyl adipate, DOA) yog cov organic compound. Cov hauv qab no yog kev qhia txog nws qhov xwm txheej, kev siv, kev tsim khoom thiab cov ntaub ntawv kev nyab xeeb:

Zoo:

- Cov tsos mob: tsis muaj xim rau yellowish kua

- Solubility: soluble hauv cov kuab tshuaj organic, me ntsis soluble hauv dej

- Refractive index: kwv yees. 1.443-1.449 Ib

Siv:

- Dimethyl azelarate feem ntau yog siv los ua cov yas yas, uas muaj cov yas zoo thiab ua kom txias, thiab tuaj yeem ua rau cov tawv nqaij thiab txias ua haujlwm ntawm cov yas.

- Nws yog feem ntau siv rau hauv kev tsim cov polyvinyl chloride (PVC) plastics, hluavtaws roj hmab, hluavtaws resins, thiab lwm yam, los txhim kho lawv cov yas thiab lub zog.

- Dimethyl azelaate kuj tseem siv tau los ua roj nplua nyeem, softener thiab antifreeze, thiab lwm yam.

Txoj kev:

Dimethyl azelaic acid feem ntau yog npaj los ntawm esterification cov tshuaj tiv thaiv raws li hauv qab no:

1. React nonanediol nrog adipic acid.

2. Ntxiv cov tshuaj esterifying, xws li sulfuric acid, ua catalysts hauv cov tshuaj tiv thaiv esterification.

3. Cov tshuaj tiv thaiv yog nqa tawm nyob rau hauv qhov tsim nyog kub thiab siab tej yam kev mob los tsim dimethyl azelaate.

4. Cov khoom yog ntxiv purified los ntawm lub cev qhuav dej, distillation thiab lwm yam kauj ruam.

Cov ntaub ntawv kev nyab xeeb:

- Dimethyl azelaic acid yuav tsum tau tiv thaiv nyob rau hauv ib txwm siv tej yam kev mob thiab tsis txhob sib cuag nrog daim tawv nqaij thiab ob lub qhov muag.

- Hnav cov khoom tiv thaiv tsim nyog, suav nrog kev tiv thaiv ua pa thiab hnab looj tes tiv thaiv, yog siv.

- Kev ceev faj yuav tsum tau them rau qhov chaw uas muaj qhov cua zoo thaum lub sijhawm ua haujlwm kom tsis txhob nqus tau lossis nqus tau.

- Thaum lub sijhawm khaws cia thiab kev thauj mus los, nws yog qhov tsim nyog los tiv thaiv kev sib cuag nrog oxidants, acids thiab lwm yam khoom kom tsis txhob muaj xwm txheej txaus ntshai.