| Impahla | Isici |
|---|---|
| Inombolo ye-CAS | 105-46-4 |
| Ifomula yamangqamuzana | C₆H₁₂O₂ / CH₃COOCH(CH₃)CH₂CH₃ |
| Isisindo samangqamuzana | 116,16 g/mol |
| Ukubukeka kwangaphandle | Ukwetshezi olucwebe olungenambala |
| Iphunga | Kumnandi, kufana nezithelo |
| Izinga lokuncibilika | –99 °C |
| Izinga lokubila | 111–112 °C |
| Izinga lokusha | 16.7 °C (62 °F) |
| Ukuminyana (20°C) | 0.87 g/ml |
| Ukuncibilika emanzini | 0.8% (encane) |
| Ingcindezi yomhwamuko (20°C) | 10 mm Hg |
| Imikhawulo yokuqhuma | 1,7–9,8% (ngomthamo) |
| I-PDK (NIOSH REL) | 200 ppm (950 мг/м³) |
| Inombolo ye-UN / Ikilasi | UN 1123, Ikilasi 3, Iqembu lokupakisha III |
| Ukugcinwa | Gcina endaweni epholile, eyomile, enomoya ohamba kahle kude nemithombo yomlilo |
1. Izici:
Ukubukeka nokuma komzimba: i-sec-butyl acetate iwuketshezi olucwebe, olungenambala, olushiya kalula olunephunga elimnandi lezithelo. Ihlinzekwa ngamakhwalithi ahlukene (ezobuchwepheshe, i-reagent, ukuhlanzeka okuphezulu) ngokuhlanzeka okungaphansi kuka-98,0%.
Ukuncibilika: i-sec-butyl acetate incibilika kancane emanzini (0.8%) futhi intanta emanzini. Ihlangana nengxenye enkulu yezincibilikisi zemvelo, kufaka phakathi utshwala, ama-ester, ama-hydrocarbon anephunga elimnandi namanye ama-ester ayinkimbinkimbi, okwenza kube yisincibilikisi esisebenza kahle ezinhlobonhlobo zezinhlaka, izinto ezisuselwa kwi-cellulose, amafutha namafutha.
Izici zamakhemikhali: i-sec-Butyl acetate iyi-ester eyakhiwa ngesikhathi sokufakwa kwe-sec-butanol (2-butanol) nge-acetic acid noma i-acetic anhydride. Lokhu kuwuketshezi oluvutha kalula olunezinga lokuvutha elingu-62°F (16,7°C) kanye nobubanzi bokugquma emoyeni (1.7–9.8% ngevolumu), okudinga ukuphathwa ngokuqapha. Umkhiqizo unezinga lokushisa eliphezulu lokubila (111–112°C) kanye nesivinini esiphezulu sokuhwamuka, okukwenza kube ngcono kakhulu ezinhlelweni ezidinga ukoma okusheshayo ngaphandle kokuhwamuka ngokweqile kwama-ester anamaphuzu okubila aphansi. Izimile ngamakhemikhali, kodwa isabela ngamandla namacidi anamandla okuhlanza, ukusabela kungase kube nokushisa okwanele ukushisa imikhiqizo yokusabela. Amagesi asinda kunomoya futhi angasakazeka aye emithonjeni yokushisa. Kungase kuqede amapulasitiki athile nenjoloba. Umkhawulo wokuchayeka onconyiwe we-NIOSH (REL) yi-TWA engu-200 ppm (950 mg/m³).
2. Ukusetshenziswa:
Upende, izinto zokumboza kanye nopende wokunyathelisa (okuyinhloko): I-sec-butyl acetate iyisincibilikisi esibalulekile ekukhiqizeni ama-nitrocellulose lacquers, ama-oli, ama-thinner kanye nezingubo zokulungisa izimoto ngenxa yekhono layo elihle lokuncibilikisa kanye nezinga eliphezulu lokuhwamuka. Isetshenziswa kakhulu kuma-lacquers ezinzipho kanye nezingubo zesikhumba, kanye nokuba yi-solvent koyinki bokuphrinta, izinto zokumboza zephepha kanye nezingcwecwe zendwangu.
Ukuhlanganiswa kwamakhemikhali kanye nemikhiqizo ephakathi: Isetshenziswa njengesincibilikisi kanye ne-ejenti yokusabela ekuhlanganiseni kwezinto eziphilayo, i-ejenti ye-catalytic kanye nesengezo se-petrochemical. Isebenza njengesincibilikisi sokukhipha emkhakheni wezokwelapha.
Ama-glue nezihlanzi zasezimbonini: Isetshenziswa njenge-solvent ezinhlanganisweni ze-glue kanye nokuhlanza nokususa amafutha ezingxenyeni zensimbi.
Ukusetshenziswa kwaselebhu: Isetshenziswa njengezinga lokuhlaziya kanye ne-reagent yaselabhorethri.
3. Indlela yokukhiqiza:
Inqubo yezimboni: i-sec-Butyl acetate itholakala ngokufaka i-ester ku-sec-butanol (2-butanol) nge-acetic acid noma i-acetic anhydride phambi kwe-acidic catalyst. Umkhiqizo uhlanjululwa nge-rectification ukuze ube nokuhlanzeka okungaphansi kuka-98.0%.
4. Ulwazi lokuphepha:
Ukuhlukaniswa kwengozi: i-sec-Butyl acetate ihlukaniswa njengento eyingozi enezinkomba zengozi: H225 (Ukuvutha kalula kuketshezi nomhwamuko), H319 (Kubangela ukucasuka okukhulu kwamehlo), H315 (Idala ukucasuka kwesikhumba), H335 (Kungabangela ukucasuka kwemigudu yokuphefumula), H336 (Kungabangela ukozela nesiyezi). Igama lesignali: Kuyingozi. NFPA 704: Ingozi yempilo 1, Ukusha 3, Ukungazinzi 0. Inombolo ye-UN: 1123 (Ikilasi 3, Iqembu lokupakisha III).
Izingozi zempilo: Umhwamuko ungabangela ukucasuka kwemigudu yokuphefumula, ikhanda elibuhlungu, ukozela nesiyezi. Ezingeni eliphezulu linomphumela wokudakwa. Idala ukucasuka kwesikhumba futhi ingangena ngokusebenzisa isikhumba. Kubangela ukucasuka kwamehlo.
Izinyathelo zosizo lokuqala: Uma kungena emehlweni – geza ngamanzi; esikhumbeni – geza ngamanzi nensipho; uma ihogela – umoya omusha; uma kugwinya – phuza amanzi, UNGAHLANZEKI, bheka udokotela.
Ingozi yomlilo nokuqhuma: Ukuvutha kalula kuketshezi (izinga lokuvutha 16,7°C). Umoya ongcolile ungakha izingxube eziqhumayo nomoya (1.7–9.8% ngevolumu). Uma kunesomlilo sebenzisa igwebu elingavuthi utshwala, impushana noma i-CO₂. Amanzi angase angasebenzi kahle, kodwa angasetshenziswa ukupholisa izitsha.
Ukugcinwa nokuzinza: Gcina ezitsheni ezivalwe ngokuqinile endaweni epholile, eyomile, enomoya ohamba kahle. Isikhathi sokusebenza: izinyanga ezingama-24–60 ezitsheni zokuqala ezivaliwe.
Ukuhambisana nomthetho: i-sec-Butyl acetate (CAS#105-46-4, EC#203-561-1) ifakiwe kumarejista e-EINECS, TSCA, DSL. Ilawulwa yi-OSHA (PДK: 200 ppm) kanye ne-NIOSH (PДK: 200 ppm). Ukuze uthole ulwazi oluphelele, bheka i-Pasipoti Yokuphepha (SDS).
