Umenzi weXabiso eliLungileyo I-Triphenylmethane ezintathu isocyanate(isisombululo se-acetate ye-ethyl) CAS: 141-78-6 Brand: Desmodur_RE
Izithethantonye
I-AKOS BBS-00004223;UMOYA WE-METHYLATED;UMOYA WE-METHYLATED INDUSTRIAL;UMOYA WE-METHYLATED UMINERALISED;METHYLCARBINOL;UTYWALA OBUYI-REAGENT;RARECHEM AL BI 0544;UMOYA WEWANI
Usetyenziso
I-1.I-ethyl acetate isetyenziswa njenge-solvent ye-varnishes, i-lacquers, kunye ne-nitrocellulose;njengencasa yeziqhamo ezingaqhelekanga;ekucoceni amalaphu; nasekwenzeni isilika nesikhumba eyenziweyo, iziqholo, kunye neepleyiti zemifanekiso yeefilimu kunye neefoto (Merck 1996).I-Ethyl Acetate isetyenziswa ngokubanzi njenge-solvent kwi-organic reactions.Izinto ezingcolisa indalo;Ungcoliseko lokutya.
I-2.I-acetate ye-Ethyl isetyenziswe ngokuyinhloko njenge-solvent kunye ne-diluent, ithandwa ngenxa yeendleko zayo eziphantsi, i-toxicity ephantsi, kunye nephunga elimnandi.Ngokomzekelo, ngokuqhelekileyo isetyenziselwa ukucoca iibhodi zeesekethe kwaye kwezinye izikhonkwane zokususa i-varnish (i-acetone kunye ne-acetonitrile nazo zisetyenziswa).Iimbotyi zekofu kunye namagqabi eti anecaffeinated kunye nale solvent.Ikwasetyenziswa kwiipeyinti njenge activator okanye i-hardener.Kwiziqholo, iphuma ngokukhawuleza, ishiya kuphela ivumba le-perfume esikhumbeni.
3 – 1 - Ukusetyenziswa kweLebhu
Kwilabhoratri, imixube equkethe i-ethyl acetate isetyenziswa ngokuqhelekileyo kwikholamu yechromatography kunye ne-extractions.I-acetate ye-Ethyl ayifane ikhethwe njenge-solvent yokuphendula ngenxa yokuba ijwayele ukuhlalutya i-hydrolysis kunye ne-trans esterification.
3 – 2 - Ukwenzeka kwiiwayini
I-acetate ye-Ethyl yeyona ester ixhaphakileyo kwiwayini, iyimveliso ye-asidi eguquguqukayo eqhelekileyo - i-acetic acid, kunye ne-ethyl alcohol eyenziwa ngexesha lokuvutshelwa.Ivumba le ethyl acetate licace kakhulu kwi wayini ezincinci kwaye linegalelo kwimbono jikelele "yeziqhamo" kwi wayini.
I-3 - 3 - i-entomological kill agent
Kwinkalo ye-entomology, i-ethyl acetate yi-asphyxiant esebenzayo yokusetyenziswa ekuqokeleleni izinambuzane kunye nokufunda.Kwingqayi yokubulala ehlawuliswe nge-ethyl acetate, i-vapors iya kubulala inambuzane eqokelelweyo (ngokuqhelekileyo ikhulile) ngaphandle kokuyitshabalalisa.Ngenxa yokuba ingeyo-hygroscopic, i-ethyl acetate ikwagcina isinambuzane sithambile ngokwaneleyo ukuvumela ukunyuswa okufanelekileyo kulungele ukuqokelela.
3.Uncedo lwamayeza (incasa);iziqhamo ezenziweyo;i-solvent ye-nitrocellulose, i-varnishes, i-lacquers, kunye ne-dopes yendiza;ukwenziwa komgubo ongenamsi, ngethwathwa, iifilim zeefoto kunye neepleyiti, isilika yokwenziwa, iziqholo;ukucoca impahla, njl.
Inkcazo
Umdibaniso | Inkcazo |
Imbonakalo | Ulwelo oluluhlaza okwesibhakabhaka okanye olubomvu olumfusa |
Ukuxinana kuma-20°C | Malunga ne-1.0 g/cm³ |
I-Viscosity kwi-20 ° C | Malunga ne-3 mPa.s |
Uvavanyo lweNCO% | 7.1±0.2% |
Uvavanyo lwe-triphenylmethane -4,4',4''-triisocyanate% | 27±1% |
Intsalela yeChlorobenzene | ≤0.5 |
Ukupakisha
50kg/ibhegi
Ukugcinwa kufuneka kube kwindawo epholileyo, yomile kwaye ivule umoya.