1. Izici:

• Ukubukeka nokuma komzimba: I-Isopropyl acetate iwuketshezi olucwebe, olungenambala, oluncibilika kalula olunephunga elimnandi elifana nezithelo. Kutholakala ngemikhakha ehlukahlukene (i-reactive, i-HPLC, izinga lokuhlaziya, ezimbonini) ngokuhlanzeka okusuka ku-≥99,0% kuya ku-≥99,8%.

• Ukuncibilika: I-Isopropyl acetate incibilika ngokulingene emanzini (2.90 g/100 ml ku-20°C) futhi ixubana neningi lezincibilikisi eziphilayo, kufaka phakathi utshwala, ama-ketone, ama-ester nama-hydrocarbon anephunga. Lokhu kuhambisana okubanzi kuyenza ibe isincibilikisi esisebenzayo sezinhlobonhlobo zezinsalela, izinto ezisuselwa kwi-cellulose, amafutha namafutha.

• Izici zamakhemikhali: I-Isopropyl acetate iyi-ester eyakheka lapho kuhlangana i-acetic acid ne-isopropanol. Iwuketshezi oluvutha kalula olunezinga lokuvutha elingu-2–16,7°C (isitsha esivaliwe) kanye nobubanzi obukhulu bokuqhuma emoyeni (1,8–7,8% vol.), okudinga ukuphathwa ngokucophelela. Umkhiqizo unesivinini esiphezulu sokuhwamuka, okuwenza alungele izinhlelo ezidinga ukoma okusheshayo. Izimile ngokwekhemikhali, kodwa isabela ngamandla nama-oxidizing agents anamandla, ama-asidi anamandla kanye nezisekelo ezinamandla. I-Isopropyl acetate ingase yonakalise amanye amapulasitiki nenjoloba. Umusi usinda kunomoya (ukukhuluphala komusi 3,5) futhi ungakwazi ukusabalala uye emithonjeni yokuthungela. Umkhiqizo uphinde usetshenziswe njengesinongo (FEMA 2926).

2. Ukusetshenziswa:

• Upende, izinto zokumboza kanye noyinki wokunyathelisa (okuyinhloko): I-Isopropyl acetate iyisincibilikisi esibalulekile ekukhiqizeni ama-nitrocellulose lacquers kanye nezingubo zokulungisa izimoto ngenxa yekhono layo elihle lokuncibilikisa kanye nezinga eliphezulu lokuhwamuka. Isetshenziswa kuma-aerosol paints, ama-flexographic kanye nama-gravure printing inks. Isebenza njengesincibilikisi ekukhiqizeni isikhumba sokwenziwa kanye nezingubo zemboni.

• Ukuhlanganiswa kwamakhemikhali kanye nezingxenye eziphakathi: Isetshenziswa njengesincibilikisi sokukhipha emkhakheni wezokwelapha, ikakhulukazi ekukhiqizeni ama-antibiotic. Isebenza njengesincibilikisi kanye nomkhiqizo waphakathi ekuhlanganiseni izinto eziphilayo. Isetshenziswa njenge-ejenti yokukhipha amanzi.

• Izinamathiselo nezihlanzi zezimboni: Isetshenziswa njengesincibilikisi ezintweni zokunamathisela futhi wokuhlanza nokukhipha amafutha ezingxenyeni zensimbi.

• Ama-aroma nezinto zokunukisa: Isetshenziswa njenge-flavour enhancer emikhiqizweni yokudla (FEMA 2926) nasekukhiqizeni izinto zephunga.

• Okunye ukusetshenziswa: Isincibilikisi sezinto ezisuselwa kwi-cellulose, amapulasitiki, ama-wax kanye nama-resin. Isetshenziswa njenge-reagent yaselabhorethri (HPLC, GC) nasekukhiqizeni izibulala-zinambuzane zebhayoloji.

3. Indlela yokukhiqiza:

• Inqubo yezimboni: I-Isopropyl acetate itholakala ngokufaka i-acetic acid ku-isopropanol kanye ne-acid catalyst. Umkhiqizo uhlanjululwa nge-rectification. Izinhlobo zokuhlanzeka okuphezulu ziyaphinde zicutshungulwe futhi zihlungwe.

4. Ulwazi lokuphepha:

• Ukuhlukaniswa kwengozi: I-Isopropyl acetate ihlukaniswa njengento eyingozi enezinkomba zobungozi: H225 (Ukuwuketshezi oluvutha kalula kanye nomhwamuko), H319 (Kubangela ukucasuka okukhulu emehlweni), H315 (Kubangela ukucasuka kwesikhumba), H335 (Kungabangela ukucasuka kwemigudu yokuphefumula), H336 (Kungase kubangele ukozela nesiyezi). Igama lesignali: Kuyingozi. Inombolo ye-UN: 1220 (Ikilasi 3, Iqembu lokupakisha II). NFPA 704: Ingozi yezempilo 2, Ukuvutha 3, Ukungazinzi 0.

• Izingozi zezempilo: Umoya ongcolile ungabangela ukucasuka kwemigudu yokuphefumula, ikhanda elibuhlungu, ukozela kanye nesiyezi. Kubangela ukucasuka kwesikhumba namehlo.

• Izinyathelo zosizo lokuqala: Uma kungena emehlweni – geza ngamanzi; esikhumbeni – geza ngamanzi nensipho; uma kuhogelwa – umoya omusha; uma kugwinya – phuza umlomo, UNGAGQUMI, bheka udokotela.

• Ingozi yomlilo nokuqhuma: I-liquid evutha kalula (izinga lokuvutha 2–16.7°C). Umhwamuko ungakha izingxube eziqhumayo nomoya (1.8–7.8% ngevolumu). Uma kunesomlilo sebenzisa igwebu elimelana notshwala, impushana noma i-CO₂.

• Ukugcinwa nokuzinza: Gcina ezitsheni ezivalwe ngokuqinile endaweni epholile, eyomile, enomoya ohamba kahle. Isikhathi sokusebenza: izinyanga ezingama-24–60 ezitsheni zoqobo ezivaliwe.

• Ukuhambisana nomthetho: I-Isopropyl acetate (CAS#108-21-4, EC#203-561-1) ifakiwe kumarejista e-EINECS, TSCA, DSL. Ilawulwa yi-OSHA (PEL: 100 ppm) ne-ACGIH (TLV: 100 ppm, STEL: 150 ppm). Ukuze uthole ulwazi oluphelele, bheka i-Safety Data Sheet (SDS).
  
  

  

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