Ethyl Acetate |141-78-6
Xogta Jirka ee Alaabta:
| Magaca Alaabta | Ethyl acetate |
| Guryaha | Dareer aan midab lahayn oo la caddeeyey, leh ur udgoon, kacsan |
| Meesha dhalaalaysa(°C) | -83.6 |
| Barta karkarinta(°C) | 77.2 |
| Cufnaanta qaraabada (Biyaha=1)(20°C) | 0.90 |
| Cufnaanta uumiga qaraabada (hawo=1) | 3.04 |
| Cadaadiska uumiga oo buuxa (kPa) | 10.1 |
| Kulaylka gubashada (kJ/mol) | -2072 |
| Heerkulka daran (°C) | 250.1 |
| Cadaadis halis ah (MPa) | 3.83 |
| Octanol/qaybinta qaybinta biyaha | 0.73 |
| Barta toosh (°C) | -4 |
| Heerkulka dabka (°C) | 426.7 |
| Xadka qaraxa sare (%) | 11.5 |
| Xadka qaraxa hoose (%) | 2.2 |
| Solubility | Waxoogaa ku milmay biyaha, ku milma inta badan dareerayaasha organic sida ethanol, acetone, ether, chloroform, benzene, iwm. |
Guryaha Alaabta:
1.Ethyl acetate si fudud ayaa loo nadiifiyaa, iyo sidoo kale si tartiib tartiib ah hydrolysed si ay u sameeyaan acetic acid iyo ethanol joogitaanka biyaha heerkulka qolka.Ku darida qadarka aashitada ama saldhigga waxay kor u qaadi kartaa falcelinta hydrolysis.Ethyl acetate sidoo kale waxay mari kartaa khamriga, ammonolysis, ester sarrifka, hoos u dhigista iyo falcelinta kale ee caadiga ah ee esters-ka guud.Waxay isku dhejisaa iyada oo ay jirto joogitaanka birta sodium si ay u sameyso 3-hydroxy-2-butanone ama ethyl acetoacetate;waxay la falgashaa reagent Grignard si ay u samayso ketone, iyo falcelin dheeraad ah waxay siinaysaa aalkolo jaamacadeed.Ethyl acetate aad bay u deggan tahay kulaylka waxayna ahaanaysaa mid aan isbeddelin marka lagu kululeeyo 290 ° C 8-10 saacadood.Waxay u jajabisaa ethylene iyo acetic acid marka la sii maro tuubada birta kulul ee casaanka ah, galay hydrogen, carbon monoxide, carbon dioxide, acetone iyo ethylene iyada oo loo marayo budada zinc ee kuleylka 300 ~ 350 ° C, iyo biyo, ethylene, carbon dioxide iyo acetone iyada oo loo marayo fuuqbaxa aluminium oxide at 360°C.Ethyl acetate waxaa ka soo baxa shucaaca ultraviolet si ay u soo saarto 55 boqolkiiba carbon monoxide, 14 boqolkiiba carbon dioxide iyo 31 boqolkiiba hydrogen ama methane, kuwaas oo ah gaas gubanaya.Falcelinta ozone waxay soo saartaa acetaldehyde iyo acetic acid.Halides hydrogen gaseous waxay la falgalaan ethyl acetate si ay u sameeyaan ethyl halide iyo acetic acid.Hydrogen iodide waa ka ugu firfircoon, halka hydrogen chloride uu u baahan yahay cadaadis si uu u dumiyo heerkulka qolka, waxaana lagu kululeeyaa 150 ° C leh fosfooraska pentachloride si ay u sameeyaan chloroethane iyo acetyl chloride.Ethyl acetate waxay samaysaa dhismooyin crystalline oo kala duwan oo leh cusbo bir ah.Dhismayaashani waxay ku milmayn anhydrous ethanol laakiin kuma jiraan ethyl acetate oo si fudud ayaa biyo loogu shubaa.
2. Xasilooni: Xasilooni
3.Waxyaabaha mamnuuca ah: oksaydhiyeyaasha xooggan, alkalis, acids
4.Polymerisation khatar: non-polymerisation
Codsiga Alaabta:
Waxaa loo isticmaali karaa in lagu milmo nitrocellulose, qalin daabacan, saliid iyo dufan, iwm. Waxa kale oo loo isticmaali karaa sida alaabta ceeriin ee rinji, maqaar macmal ah, alaab caag ah, dheeha, dawooyinka iyo xawaashka, iwm.
Qoraalada Kaydinta Alaabta:
1. Ku kaydi bakhaar qabow oo hawo leh.
2. Ka fogow dabka iyo isha kulaylka.
3. Heerkulka kaydinta waa inuusan dhaafin37°C.
4.Ka ilaali weelka oo xiran.
5. Waa in si gooni ah loo kaydiyaa walxaha oksida,acids iyo alkalis,waana inaan marnaba la isku darin.
6.Isticmaal nalalka aan qarxin iyo tas-hiilaadka hawo-siinta.
7. Mamnuuci isticmaalka qalabka farsamada iyo qalabka si fudud loo dhalin karo.
8.Aagga kaydinta waa in lagu qalabeeyaa qalabka daaweynta degdega ah ee daadsan iyo agab hoy oo ku habboon.
