| Impahla | Isici |
|---|---|
| Inombolo ye-CAS | 108-10-1 |
| Ifomula yamangqamuzana | C₆H₁₂O |
| Isisindo samangqamuzana | 100,16 g/mol |
| Ukubukeka kwangaphandle | I-liquid ekhanyayo engenambala |
| Iphunga | Kumnandi, kuswidi, kusithelo, kuketone |
| Izinga lokuncibilika | –80°C |
| Izinga lokushisa lokubila | 116–118°C |
| Izinga lokushisa lokuvutha | 14°C |
| Ukuminyana (20°C) | 0.800–0.803 g/cm³ |
| Ukuncibilika emanzini (20°C) | 17–19 g/l |
| Imikhawulo yokuqhuma | 1.2–8% (ngevolumu) |
| Inombolo ye-UN / Ikilasi | UN 1245, Ikilasi 3 |
1. Izici:
Ukubukeka ngeso kanye nesimo somzimba: I-Methyl isobutyl ketone (MIBC) iwuketshezi olucwebe olungenambala olunephunga elimnandi elinoshukela lezithelo. Itholakala ngezinhlobo ezahlukene (ezobuchwepheshe ≥99.6%, izinga lokuhlaziya ≥99.7%, ukuhlanzeka okuphezulu).
Ukuncibilika: I-MIBC incibilika ngokulingene emanzini (1.9% ngesisindo ku-20°C) futhi ixubana ngokuphelele nezincibilikisi eziningi eziphilayo, kuhlanganise notshwala, ama-ester kanye nama-hydrocarbon anephunga elimnandi. Ukuncibilika kwayo okuphansi emanzini kanye ne-coefficient yokuhlanza ephezulu kuyenza ibe isincibilikisi esisebenzayo sezinhlaka ezingamanzi kanye nama-polymer.
Izici zamakhemikhali: I-MIBK iyisincibilikisi se-ketone esikhukhula ngokulingene, esinesisindo esiphansi. Inezinga lokubila elingu-116–118°C, izinga lokuthungelela elingu-14°C kanye nezinga lokuzivutha elingu-443–460°C. Umusi wayo usinda kunomoya futhi ungakha izingxube eziqhumayo nomoya (1.2–8% ngevolumu). I-MIBK izinzile ngamakhemikhali, kodwa isabela ngamandla nama-oxidizing agents anamandla kanye nama-asidi. Ibola kalula ngokwebhayoloji.
2. Ukusetshenziswa:
Upende, izinto zokumboza kanye noyinki wokunyathelisa (okuyinhloko): I-MIBK iyisincibilikisi esibalulekile kuma-coatings ezimoto (OEM kanye nokulungisa), kuma-coatings ezakhiwo nezingodo, kuma-inks okunyathelisa okujulile kanye nama-coatings akhethekile.
Ukuhlanganiswa kwamakhemikhali kanye nezakhi eziphakathi: Isakhi esiyinhloko sokwenziwa kwe-antiozonant yerabha (6PPD). Isetshenziswa njenge-solvent yokukhipha emithini, ekukhiqizeni ama-antibiotic kanye nokukhipha izinsimbi ezingavamile.
Izinamathiselo, ama-sealants kanye nerabha: I-solvent enhle kakhulu yama-rubber cements, ama-contact adhesives kanye nama-sealants. Isetshenziswa ezingubeni zesikhumba.
Ezinye izinhlelo zokusebenza: Isidakamizwa se-ethanol, ingxenye yamabhavu e-electroplating kanye nezihlanzi zezimboni, isincibilikisi kwezimonyo.
3. Indlela yokukhiqiza:
Inqubo yezimboni: I-MIBK itholakala ngokuhidrojenishwa nge-catalyst ye-acetone: ukuhlangana kwe-acetone ukwakha i-diacetone alcohol, ukususwa kwamanzi kuze kube yi-mesityl oxide, ukuhidrojenishwa kuze kube yi-MIBK. Umkhiqizo uhlanjululwa nge-rectification kuze kufinyelele ukuhlanzeka okungu-≥99,6%.
4. Ulwazi lokuphepha:
Ukuhlukaniswa kwengozi: I-MIBC ihlukaniswa njengento eyingozi enezinkomba zengozi: H225 (Ukugeleza okushelelayo kanye nomusi), H319 (Kubangela ukucasuka okukhulu emehlweni), H332 (Kuyingozi uma kuhogelwa), H336 (Kungabangela ukozela kanye nesiyezi), H351 (Kusolwa ngokubangela umdlavuza). Igama lesignali: Kuyingozi. Inombolo ye-UN: 1245 (Ikilasi 3, Iqembu lokupakisha II). Ingaphansi kweProposition 65 yaseCalifornia.
Izingozi empilweni: Kuyingozi uma kuhogelwa. Umusi ungabangela ukucasuka kwemigudu yokuphefumula, ikhanda elibuhlungu, ukozela kanye nesiyezi. Kubangela ukucasuka kwamehlo. Ukuchayeka isikhathi eside kungabangela ukulimala kwesibindi nezinso.
Izinyathelo zosizo lokuqala: Uma kungena emehlweni – geza ngamanzi; esikhumbeni – geza ngamanzi nensipho; uma kuhogwa – umoya omusha; uma kugwinya – hlambulula umlomo, UNGAHLANZI, bheka udokotela.
Ingozi yomlilo nokuqhuma: Uketshezi olushisa kalula (izinga lokushisa lokuvutha lingu-14°C). Umusi ungakha izingxube eziqhumayo nomoya (1.2–8% ngevolumu). Uma kunesomlilo sebenzisa igwebu elimelana notshwala, impushana noma i-CO₂.
Ukugcinwa nokuzinza: Gcina ezitsheni ezivalwe ngokuqinile endaweni epholile, eyomile, enomoya ohamba kahle. Isikhathi sokusetshenziswa: izinyanga ezingama-24–60 ezitsheni zokuqala ezivaliwe.
Ukuhambisana nomthetho: I-MIBK (CAS#108-10-1, EC#203-550-1) ifakiwe kumarejista e-EINECS, TSCA, DSL. Ilawulwa yi-OSHA ne-ACGIH (PEL: 50 ppm). Ingaphansi kweProposition 65 yaseCalifornia. Ukuze uthole ulwazi oluphelele bheka ku-Pasipoti yokuphepha (SDS).
