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I-Monomethyl dodecanedioate(CAS#3903-40-0) Isithombe Esifakiwe
  • I-Monomethyl dodecanedioate(CAS#3903-40-0) 1

I-Monomethyl dodecanedioate(CAS#3903-40-0)

Isakhiwo Samakhemikhali:

I-Molecular Formula I-C13H24O4
I-Molar Mass 244.33
Ukuminyana 1.012±0.06 g/cm3(Kubikezelwe)
I-Melting Point 51.5-52 °C
I-Boling Point 170 °C(Cindezela: 3 Torr)
I-Flash Point 124.3°C
Ukuncibilika I-DMSO (Kancane, Ishisiwe), i-Methanol (Kancane)
I-Vapor Presure 5.28E-06mmHg ku-25°C
Ukubukeka Okuqinile
Umbala Emhlophe
pKa 4.78±0.10(Okubikezelwe)
Isimo Sesitoreji Kuvalwe endaweni eyomile, Ngezinga lokushisa Legumbi
I-Refractive Index 1.456
Sebenzisa Ukuze kuhlanganiswe izinongo, kungasetshenziswa futhi njengesilungisi se-polyester egcwele, i-ejenti yemvula yensimbi enzima, izinto zokusetshenziswa ezikhethekile ze-polyurethane.

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

 

Isingeniso

I-Monomethyl dodecanedioate, eyaziwa nangokuthi i-octylcyclohexylmethyl ester, iyinhlanganisela yezinto eziphilayo.

 

Ikhwalithi:

- Ukubukeka: I-Monomethyl dodecanedioate ivame ukutholakala njengoketshezi olungenambala.

- Ukunyibilika: Kuncibilika kuzincibilikisi zemvelo ezinjengotshwala, ama-ether, nama-ketone.

- Indawo yokuthungela: Cishe ku-127°C.

 

Sebenzisa:

- I-Monomethyl dodecanedioate iyi-chemical material eluhlaza, evame ukusetshenziswa ekulungiseni izithambisi ezisebenza kahle kakhulu kanye nezithambisi ezisebenza kahle kakhulu.

- Ingasetshenziswa futhi njenge-plasticizer yamapulasitiki nenjoloba, ithuthukise ukuguquguquka nokuguquguquka kwayo.

- I-Monomethyl dodecanedioate ingasetshenziswa futhi njengento eluhlaza ekuhlanganiseni kwezinto eziphilayo, njengokulungisa odayi, ama-fluorescent, ama-ejenti ancibilikayo namapulasitiki.

 

Indlela:

Ukulungiswa kwe-monomethyl dodecanedioate kuvame ukwenziwa ngalezi zinyathelo ezilandelayo:

1. Engeza i-dodecanedioic acid ne-methanol ku-reactor.

2. Ukusabela kwe-Esterification kumazinga okushisa afanele nokucindezela ngokuvamile kudinga ukuba khona kwe-catalyst efana ne-sulfuric acid noma i-hydrochloric acid.

3. Ngemva kokuphela kokusabela, umkhiqizo uhlukaniswa futhi uhlanjululwe ngokuhlunga noma ukucwiliswa kwe-distillation.

 

Ulwazi Lokuphepha:

- Gwema ukuhogela, ukuthintana nesikhumba namehlo. Izimpahla zokuzivikela ezifanele njengamagilavu, izibuko zokuzivikela, nezingubo zokuzivikela kufanele zigqokwe ngesikhathi sokusebenza.

- Gwema ukuthintana nama-oxidizing agents aqinile ngesikhathi sokugcina kanye nokuhamba ukuze ugweme umlilo nokuqhuma.

- Lapho uphatha futhi ulahla imfucuza, thobela imithetho nemithetho yendawo efanele, futhi ulahle imfucuza ngendlela efanele.

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