Dimethyl azelate(CAS#1732-10-1)

Mawu Oyamba

Dimethyl azelaic acid (yomwe imadziwikanso kuti Dioctyl adipate, DOA) ndi wamba wamba. Zotsatirazi ndizofotokozera za chikhalidwe chake, kugwiritsa ntchito, njira zopangira ndi chitetezo:

Ubwino:

- Maonekedwe: Madzi opanda mtundu mpaka achikasu

- Kusungunuka: kusungunuka mu zosungunulira za organic, kusungunuka pang'ono m'madzi

- Refractive index: pafupifupi. 1.443-1.449

Gwiritsani ntchito:

- Dimethyl azelarate imagwiritsidwa ntchito makamaka ngati pulasitiki, yomwe imakhala ndi pulasitiki yabwino komanso kukana kuzizira, ndipo imatha kuwonjezera kufewa komanso kuzizira kwa mapulasitiki.

- Nthawi zambiri amagwiritsidwa ntchito popanga mapulasitiki a polyvinyl chloride (PVC), mphira wopangira, ma resins opangira, ndi zina zambiri, kuti apititse patsogolo pulasitiki ndi mphamvu zawo.

- Dimethyl azelaate itha kugwiritsidwanso ntchito ngati mafuta, zofewa komanso antifreeze, mwa zina.

Njira:

Dimethyl azelaic acid nthawi zambiri imakonzedwa ndi esterification reaction motere:

1. Kuchita nonanediol ndi adipic acid.

2. Onjezani ma esterifying agents, monga sulfuric acid, monga chothandizira mu esterification reaction.

3. Zomwe zimachitikira zimachitika pansi pa kutentha koyenera ndi kupanikizika kuti apange dimethyl azelaate.

4. Mankhwalawa amayeretsedwanso ndi kutaya madzi m'thupi, distillation ndi njira zina.

Zambiri Zachitetezo:

- Dimethyl azelaic acid iyenera kutetezedwa pakagwiritsidwe ntchito bwino komanso kupewa kukhudzana ndi khungu ndi maso.

- Valani zida zodzitetezera zoyenera, kuphatikiza chitetezo cha kupuma ndi magolovesi oteteza, ngati agwiritsidwa ntchito.

- Chidziwitso chiyenera kuperekedwa ku malo omwe ali ndi mpweya wabwino panthawi ya opaleshoni kuti apewe kupuma kapena kulowetsedwa mwangozi.

- Pakusungirako ndi kunyamula, ndikofunikira kupewa kukhudzana ndi okosijeni, ma acid ndi zinthu zina kuti mupewe ngozi zowopsa.