Umenzi Ixabiso Elihle I-Triphenylmethane isocyanate ezintathu (isisombululo se-ethyl acetate) I-CAS: 141-78-6 Uhlobo: Desmodur_RE
Izithethantonye
I-AKOS BBS-00004223; Umoya we-Methylated; Umoya we-Methylated; Umoya we-Methylated; Umoya we-Methylated; Umoya we-Methylated; Utywala obune-Reagent; I-Rarechem AL BI 0544; Umoya wewayini
Izicelo
1. I-ethyl acetate isetyenziswa njengesinyibilikisi seevarnish, iilacquers, kunye ne-nitrocellulose; njengencasa yeziqhamo ezingabonakaliyo; ekucoceni amalaphu; nasekwenzeni isilika yokwenziwa kunye nesikhumba, iziqholo, kunye neefilimu zeefoto kunye neepleyiti (Merck 1996). I-ethyl acetate isetyenziswa ngokubanzi njengesinyibilikisi kwiimpendulo ze-organic. Izingcolisi zokusingqongileyo; Izingcolisi zokutya.
2. I-ethyl acetate isetyenziswa kakhulu njengesinyibilikisi kunye nesinyibilikisi, ithandwa ngenxa yexabiso layo eliphantsi, ubuthi obuphantsi, kunye nevumba elimnandi. Umzekelo, isetyenziswa kakhulu ukucoca iibhodi zesekethe kunye nakwezinye izinto zokususa i-nail varnish (i-acetone kunye ne-acetonitrile nazo ziyasetyenziswa). Iimbotyi zekofu kunye namagqabi eti azifakwanga i-caffeine ngesi sinyibilikisi. Ikwasetyenziswa kwiipeyinti njenge-activator okanye i-hardenener.[icatshulwa] I-ethyl acetate ikhona kwi-confectionery, kwiiperfume, nakwiziqhamo. Kwiiperfume, iyaphela ngokukhawuleza, ishiya kuphela ivumba lesiqholo eluswini.
3 – 1 - Ukusetyenziswa kwelebhu
Kwilabhoratri, imixube equlethe i-ethyl acetate isetyenziswa kakhulu kwi-column chromatography kunye ne-extracts. I-ethyl acetate ayikhethwa rhoqo njenge-reaction solvent kuba ithambekele kwi-hydrolysis kunye ne-trans esterification.
3 – 2 - Ukuvela kwiiwayini
I-ethyl acetate yeyona ester ixhaphakileyo kwiwayini, kuba yimveliso ye-volatible organic acid eqhelekileyo — i-acetic acid, kunye ne-ethyl alcohol eyenziwa ngexesha lokubilisa. Ivumba le-ethyl acetate licacile kakhulu kwiiwayini ezincinci kwaye linegalelo kwimbono eqhelekileyo "yokuchuma" kwiwayini.
3 – 3 - Isixhobo sokubulala iintsholongwane
Kwicandelo le-entomology, i-ethyl acetate sisixhobo sokufunxa izinambuzane esisebenzayo ekuqokeleleni nasekufundeni. Kwibhotile yokubulala ezaliswe yi-ethyl acetate, umphunga uya kubulala isinambuzane esiqokelelweyo (esidla ngokuba sesidala) ngokukhawuleza ngaphandle kokusitshabalalisa. Ngenxa yokuba asiyi-hygroscopic, i-ethyl acetate ikwagcina isinambuzane sithambile ngokwaneleyo ukuvumela ukufakwa ngokufanelekileyo kulungele ukuqokelela.
3. Uncedo lweyeza (incasa); izinto ezisetyenziswa kwiziqhamo ezenziweyo; isinyibilikisi se-nitrocellulose, iivarnish, iilacquers, kunye nee-airplane dopes; ukwenziwa komgubo ongenamsi, ulusu olusetyenziswayo, iifilimu zeefoto kunye neepleyiti, isilika eyenziweyo, iziqholo; ukucoca amalaphu, njl.njl.
Inkcazo
| Ikhompawundi | Inkcazo |
| Inkangeleko | Ulwelo oluluhlaza okwesibhakabhaka olumfusa okanye obomvu olumfusa |
| Uxinano kwi-20°C | Malunga ne-1.0 g/cm³ |
| Ukuxinana kwi-20°C | Malunga ne-3 mPa.s |
| Uvavanyo lwe-NCO% | 7.1±0.2% |
| Uvavanyo lwe-triphenylmethane -4,4',4''-triisocyanate% | 27±1% |
| Intsalela yeChlorobenzene | ≤0.5 |
Ukupakisha
50kg/ibhegi
Indawo yokugcina kufuneka ibe kwindawo epholileyo, eyomileyo kwaye ingenise umoya.
