| Isici | Izici |
|---|---|
| Inombolo ye-CAS | 108-83-8 |
| Ifomula yamangqamuzana | C₉H₁₈O |
| Isisindo samangqamuzana | 142,24 g/mol |
| Ukubukeka | Uketshezi olucwebezelayo olungenambala noma oluphuzi kancane |
| Iphunga | I-ketone ebuthakathaka, enoshukela |
| Izinga lokuncibilika | –46 °C |
| Izinga lokubila | 165–170 °C |
| Izinga lokushisa kwe-flash | 49 °C (isitsha esivaliwe) |
| Ukuminyana (25°C) | 0.808 g/cm³ |
| Ukuncibilika emanzini (25°C) | 0.05 g/100 ml (ayincibiliki nhlobo) |
| Imikhawulo yokuqhumisa | 0,8–6,2% (ngevolumu) |
| Inombolo ye-UN / Ikilasi | UN 1157, Ikilasi 3 |
| Ukugcinwa | Gcina endaweni epholile, eyomile, enomoya omuhle kude nemithombo yomlilo |
| Ukupakisha | Imigqomo engu-200 kg, iziqukathi ze-IBC, ngobuningi |
1. Izici:
Ukubukeka nokuma komzimba: I-Diisobutyl ketone (DIBK) iwuketshezi olucwebezelayo, olungenambala noma oluphuzi kancane olunephunga elincane le-ketone. Itholakala ngamagilosi ahlukahlukene (ezobuchwepheshe ≥98%, ukuhlanzeka okuphezulu ≥99%, ezemithi/eziphakathi nendawo).
Ukuncibilika: I-DIBK ayincibiliki emanzini (0.05 g/100 ml ku-25°C) futhi ixubana ne-ethanol, i-ether, i-chloroform, i-benzene kanye nezincibilikisi eziningi eziphilayo. Incibilikisa i-cellulose acetate, i-nitrocellulose, i-polystyrene, izinhlaka ze-vinyl, amakhandlela, ama-oli okomisa, izinhlaka zemvelo kanye ne-rabha.
Izici zamakhemikhali: I-DIBK – isincibilikisi se-ketone esinebila eliphezulu elinefomula (CH₃)₂CHCH₂C(O)CH₂CH(CH₃)₂. Inezinga lokubila elingu-165–170°C, izinga lokusha elingu-49°C kanye nezinga lokuzitshisa elingu-396°C. Amaphuphu asinda kunomoya (ukuminyana kwamaphuphu 4,9) futhi angakha izingxube eziqhumayo nomoya (0,8–6,2% ngevolumu ku-100°F). I-DIBK izinzile ngamakhemikhali, kodwa isabela nama-oxidizing agents anamandla. Ubukhulu obuphansi, amandla angaphezulu aphansi kanye ne-coefficient yokuhlanza ephezulu kuvumela ukwakhiwa kwezinto zokumboza eziqinile kakhulu ezinama-VOC aphansi. I-DIBK iyisincibilikisi esingeyona i-HAP.
2. Ukusetshenziswa:
Upende, izinto zokumboza kanye noyinki wokunyathelisa (okuyinhloko): I-DIBK isetshenziswa kabanzi njengesincibilikisi esibambezayo kuma-nitrocellulose lacquers. Incibilikisa izinhlobonhlobo ezibanzi zezinsimbi zokwenziwa. Isetshenziswa ezinhlanganisweni zemboza ze-vinyl, acrylic, alkyd, polyester ne-epoxy. Isetshenziswa kuyinki yokunyathelisa, izinto zokususa upende, amanzi okugqoka izinkuni kanye nezingubo zesikhumba.
Imboni yezemithi: Isetshenziswa njengesincibilikisi sokukhipha kanye nensiza yokucwecwa kabusha. Isebenza njengomkhiqizo wamakhemikhali ophakathi ekwakhiweni kwezidakamizwa, izivimbeli, odayi nezibulala-zinambuzane.
Izinamathiselo, izivalo kanye nesikhumba: Isincibilikisi ezinhlanganisweni zokunamathisela nasezembozweni zesikhumba.
Ukuhlanza kwezimboni: Isebenza kahle ekuhlanzeni nasekususeni amafutha ezingaphezulu zensimbi.
Ama-aroma nezinto zokunukisa: Isetshenziswa njenge-flavour (FEMA 3537) kanye namakhaqala ezimonyo.
Okunye ukusetshenziswa: Isihlukanisi se-organosol resins, isincibilikisi senjoloba namakhandlela, ingxenye yezixazululo zokwelapha nge-fungicide.
3. Indlela yokukhiqiza:
Inqubo yezimboni: I-DIBK itholakala njengomkhiqizo oseceleni ekukhiqizeni i-methyl isobutyl ketone (MIBK). Indlela eyinhloko yokuhlanganisa – i-hydrogenation ye-catalytic ye-mesityl oxide, etholakala ngokuhlanganiswa kwe-acetone. Umkhiqizo uhlanjululwa ngokuhlunga kuze kufike ekuhlanzekeni okungu-≥98–99%.
4. Ulwazi lokuphepha:
Ukuhlukaniswa kwengozi: I-DIBK ihlukaniswa njengoketshezi oluvutha kalula olunezinkomba zobungozi: H226, H319, H335, H336, H351. Igama lesignali: Qaphela. Inombolo ye-UN: 1157 (Ikilasi 3, Iqembu lokupakisha III). NFPA 704: Ingozi yezempilo 2, Ukusha 2, Ukungazinzi 0. Ukuhlukaniswa kwe-EC: Xi; R: 10-37.
Izingozi zempilo: Amaphuphu angabangela ukucasuka kwemigudu yokuphefumula, ukukhwehlela, isiyezi, ikhanda elibuhlungu kanye nesicanucanu. Ukugxila okuphezulu kungabangela ukulahlekelwa ukwazi. Idala ukucasuka emehlweni nasemkhumbini. Ukuthintana isikhathi eside nesikhumba kungabangela i-dermatitis. Kusolwa ukuthi ingabangela umdlavuza.
Izinyathelo zosizo lokuqala: Uma kungena emehlweni – geza ngamanzi; esikhumbeni – geza ngamanzi nensipho; uma kuhogelwa – umoya omusha; uma kugwinya – hlambulula umlomo, nikeza amalahle acushiwe, thintana nodokotela.
Ingozi yomlilo nokuqhuma: Uketshezi olushisa kalula (izinga lokushisa lomlilo 49°C). Ngaphezu kuka-49°C amaphuphu angakha izingxube eziqhumayo nomoya. Uma kunesomlilo sebenzisa igwebu, impushana noma i-CO₂.
Ukugcinwa nokuzinza: Gcina ezitsheni ezivalwe ngokuqinile endaweni epholile, eyomile, enomoya omuhle. Isikhathi sokusebenza: izinyanga ezingama-24–60 ezitsheni zokuqala ezivaliwe.
Ukuhambisana nomthetho: I-Diisobutyl ketone (CAS#108-83-8, EC#203-620-1) ifakiwe kumarejista e-EINECS, TSCA, DSL. Ilawulwa yi-OSHA ne-ACGIH (PEL: 25 ppm). Iyisincibilikisi esingeyona i-HAP. Yamukelwe njenge-flavour (FEMA 3537) kanye nesengezo sokudla se-JECFA (No. 302). Ukuze uthole ulwazi oluphelele, bheka i-Pasipoti Yokuphepha (SDS).
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