Umkhiqizi Intengo Enhle I-Triphenylmethane emithathu isocyanate(isixazululo se-ethyl acetate) CAS: 141-78-6 Brand: Desmodur_RE
Omqondofana
I-AKOS BBS-00004223;UMOYA WE-METHYLATED;UMOYA WE-METHYLATED INDUSTRIAL;UMOYA WE-METHYLATED MINERALISED;METHYLCARBINOL;UTSHWALA OBUYI-REAGENT;RARECHEM AL BI 0544;UMOYA WEWAyini
Izinhlelo zokusebenza
I-1.I-Ethyl acetate isetshenziswa njenge-solvent yama-varnish, ama-lacquers, ne-nitrocellulose;njenge-anartificial fruit flavour;ekuhlanzeni izindwangu; nasekukhiqizeni usilika wokwenziwa kanye nesikhumba, amakha, namafilimu ezithombe namapuleti ezithombe (Merck 1996).I-Ethyl Acetate ngokuvamile isetshenziswa njenge-solvent ekuphenduleni kwezinto eziphilayo.Ukungcola kwemvelo;Ukungcola kokudla.
I-2.I-acetate ye-Ethyl isetshenziswa ngokuyinhloko njengesixazululi ne-diluent, ithandwa ngenxa yezindleko zayo eziphansi, ubuthi obuphansi, kanye nephunga elimnandi.Isibonelo, kuvame ukusetshenziselwa ukuhlanza amabhodi wesifunda nakwezinye izikhiphi zokuvanisha zezinzipho (i-acetone ne-acetonitrile nazo ziyasetshenziswa).Ubhontshisi wekhofi namaqabunga etiye ane-decaffeinated ngalesi sinyibilikisi.Ibuye isetshenziswe kumapende njenge-activator noma i-hardener.[catation required] I-Ethyl acetate ikhona ku-confectionery, iziqholo, nezithelo.Kumakha, ayahwamuka ngokushesha, kusale kuphela iphunga lamakha esikhumbeni.
3 – 1 - Ukusetshenziswa kwelabhorethri
Elabhorethri, izingxube eziqukethe i-ethyl acetate zivame ukusetshenziswa kukholomu ye-chromatography nokukhipha.I-Ethyl acetate ayivamisile ukukhethwa njengesixazululi sokusabela ngoba ithambekele ku-hydrolysis kanye ne-trans esterification.
3 – 2 - Ukwenzeka ewayinini
I-Ethyl acetate iyi-ester evame kakhulu ewayinini, ingumkhiqizo we-asidi ephilayo evame kakhulu eguquguqukayo - i-acetic acid, kanye ne-ethyl alcohol ekhiqizwa ngesikhathi sokuvutshelwa.Iphunga le-ethyl acetate ligqama kakhulu ewayinini elincane futhi linomthelela embonweni ojwayelekile "wezithelo" ewayinini.
3 - 3 - Umenzeli wokubulala we-Entomological
Emkhakheni we-entomology, i-ethyl acetate iyi-asphyxiant esebenzayo ukuze isetshenziswe ekuqoqweni nasekufundeni izinambuzane.Ebhodweni lokubulala elikhokhiswe i-ethyl acetate, umhwamuko uzobulala isinambuzane esiqoqiwe (esivame ukukhula) ngokushesha ngaphandle kokusibhubhisa.Ngenxa yokuthi ayiyona i-hygroscopic, i-ethyl acetate futhi igcina isinambuzane sithambile ngokwanele ukuvumela ukukhweza okufanele kulungele iqoqo.
3.Usizo lwezemithi (ukunambitheka);izakhi zezithelo zokwenziwa;i-solvent ye-nitrocellulose, ama-varnishes, ama-lacquers, nama-dopes endiza;ukukhiqizwa kwempushana engenantuthu, isikhumba sokwenziwa, amafilimu ezithombe namapuleti, usilika wokwenziwa, amakha;ukuhlanza izindwangu, njll.
Ukucaciswa
Inhlanganisela | Ukucaciswa |
Ukubukeka | Uketshezi olusasibhakabhaka olunsomi noma olubomvu olunsomi |
Ukuminyana ku-20°C | Cishe 1.0 g/cm³ |
I-Viscosity ngo-20 ° C | Cishe 3 mPa.s |
Ukuhlolwa kwe-NCO% | 7.1±0.2% |
Ukuhlolwa kwe-triphenylmethane -4,4',4''-triisocyanate% | 27±1% |
Izinsalela ze-Chlorobenzene | ≤0.5 |
Ukupakisha
50kg/isikhwama
Isitoreji kufanele sibe endaweni epholile, yomile futhi ikhiphe umoya.