Dimethyl azelate(CAS#1732-10-1)
| Inkcazelo yoKhuseleko | S23 – Musa ukuphefumla umphunga. S24/25-Kuphephe ukudibana nolusu namehlo. |
| WGK eJamani | 1 |
| I-TSCA | Ewe |
| Ikhowudi ye-HS | 29171310 |
Intshayelelo
I-Dimethyl azelaic acid (eyaziwa ngokuba yi-Dioctyl adipate, i-DOA) yinto eqhelekileyo ye-organic compound. Oku kulandelayo sintshayelelo kubume bayo, ukusetyenziswa, iindlela zokwenza kunye nolwazi lokhuseleko:
Umgangatho:
- Imbonakalo: Ayinabala ukuya kulwelo olutyheli
- Ukunyibilika: ukunyibilika kwizinyibilikisi eziphilayo, ukunyibilika kancinane emanzini
-Isalathiso esizinyibilikisayo: malunga. 1.443-1.449
Sebenzisa:
- I-Dimethyl azelarate isetyenziswa kakhulu njengeplastiki, eneplastiki elungileyo kunye nokumelana nokubanda, kwaye inokunyusa ukuthamba kunye nokumelana nokubanda kweeplastiki.
- Ihlala isetyenziselwa ukuveliswa kweeplastiki ze-polyvinyl chloride (PVC), irabha yokwenziwa, i-synthetic resins, njl., Ukuphucula iplastiki kunye namandla.
- I-Dimethyl azelaate inokusetyenziswa njenge-lubricant, isithambiso kunye ne-antifreeze, phakathi kwezinye izinto.
Indlela:
I-Dimethyl azelaic acid idla ngokulungiswa ngokusabela kwe-esterification ngolu hlobo lulandelayo:
1. Ukuphendula i-nonanediol kunye ne-adipic acid.
2. Yongeza ii-esterifying agents, ezifana ne-sulfuric acid, njenge-catalysts kwi-esterification reaction.
3. Ukusabela kuqhutywa phantsi kobushushu obufanelekileyo kunye neemeko zoxinzelelo ukuvelisa i-dimethyl azelaate.
4. Imveliso ihlanjululwa ngakumbi ngokuchithwa kwamanzi, i-distillation kunye namanye amanyathelo.
Ulwazi ngoKhuseleko:
- I-Dimethyl azelaic acid kufuneka ikhuselwe phantsi kweemeko zokusetyenziswa eziqhelekileyo kwaye ugweme ukudibanisa nolusu kunye namehlo.
-Nxiba izixhobo ezifanelekileyo zokukhusela, kubandakanywa ukukhuselwa kokuphefumula kunye neeglavu zokukhusela, ukuba zisetyenziswe.
- Ingqalelo kufuneka ihlawulwe kwindawo enomoya kakuhle ngexesha lokusebenza ukuphepha ukuphefumla okanye ukungeniswa ngengozi.
- Ngexesha lokugcinwa kunye nokuthutha, kuyimfuneko ukukhusela ukudibanisa ne-oxidants, i-acids kunye nezinye izinto ukuphepha iingozi eziyingozi.
