Ethyl Acetate CAS 141-78-6

Khoom Qhia:

Khoom Siv Lub Npe: Ethyl acetate CAS TSIS TAU: 141-78-6

Txhais:

Acetidin;

Vinegar naphtha;

Acetic acid ethyl ester;

Tshuaj& Cov Khoom Uas Lub Cev:

Tsos: tsis muaj kua

Ntsuas: ≥99.0%

Qhov ceev: 0.902

Lub Boiling Point: 75-77.5 ℃

Melting Point: -83.5 ℃

Flash Point: -4 ℃

Nqe Taw Qhia Nruab Nrab: 1.371-1.374

Dej Solubility: 80 g / L (20 ℃)

Qhov Ruaj: Ruaj. Tsis sib xws nrog ntau plastics, muaj zog oxidizing tus neeg sawv cev. Ua rau tawg yooj yim. Cov pa / cua ua kom tawg. Tej zaum yuav ya raws rhiab.

Kev Mob Cia: 2-8 ℃

Vapor ceev: 3 (20 ℃, vs huab cua)

Vapor siab: 73 hli Hg (20 ℃)

Tus Txheeb Ze Tus Txheeb Ze: 0.228

Cov ntxhiab tsw: Cov ntxhiab tsw zoo txiv neej zoo tuaj yeem kuaj pom thaum 7 txog 50 ppm (txhais tau tias=18 ppm)

Cov Thib Qho: 0.87ppm

Txwv cov kev txwv: TLV-TWA 400 ppm (～ 1400 mg / m3) (ACGIH, MSHA, thiab OSHA); IDLH 10,000 ppm (NIOSH).

Cov Ntaub Ntawv Kev Nyab Xeeb:

RTECS: AH5425000

Cov Chav Kawm Txog Teeb Meem: 3

Cov Lus Qhia Kev Nyab Xeeb: S16-S26-S33

HS Code: 2915310000

Cov Pab Pawg: II

WGK Lub Teb Chaws Yelemees: 1

RIDADR: UN 1173

Cov Lus Ceeb Toom Yuav Raug Mob: R11; R36; R66; R67

Cov Cim Teev Cia: F

Cov Lus Tshaj Tawm: H225; H319; H336

Daim Ntawv Qhia Txog Kev Ceeb Toom: P210; P305 + P351 + P338; P370 + P378; P403 + P235

Ntsais Lo Lus: Phom Sij

Cim: GHS02, GHS07

Cov Lus Qhia Txog Kev Nyab Xeeb: Kev rov ua tas mus li yuav ua rau cov tawv nqaij qhuav lossis tawg

Cov Ntaub Ntawv Muaj Kev Nyab Xeeb: 141-78-6 (Cov Ntaub Ntawv Muaj Kev Phom Sij)

Toxicity: LD50 lus hauv cov nas: 11.3 ml / kg (Smyth)

Ethyl acetate (kev qhia ua ke, ethyl ethanoate, feem ntau sau npe hu ua EtOAc lossis EA) yog cov organic sib txuas nrog cov tshuaj CH3-COO-CH2-CH3, yooj yim rau C4H8O2. Cov kua tsis muaj kob no muaj tus yam ntxwv tsis hnov ​​tsw qab (zoo ib yam li cov hlaws pear) thiab siv rau hauv cov kua nplaum, ntsia thawv cov ntawv rho tawm, cov tshuaj tsw qab thiab kas fes, thiab luam yeeb (saib daim ntawv teev kev ntxiv hauv luam yeeb). Ethyl acetate yog ester ntawm ethanol thiab acetic acid; nws yog tsim hauv cov nplai loj rau kev siv ua cov hnyav. Kev sib koom ua lag luam txhua xyoo nyob rau xyoo 1985 ntawm Nyij Pooj, North America, thiab Europe yog kwv yees li 400,000 tons. Hauv xyoo 2004, kwv yees kwv yees 1.3M tons tau tsim thoob ntiaj teb. Ethyl acetate yog siv los ua cov kuab tshuaj rau cov kua roj vanish, lacquers, thiab nitrocellulose; raws li cov txiv ntoo ua tsw; hauv kev ntxuav ntaub; thiab hauv kev tsim cov khoom lo lo ntxhuav thiab tawv tsiaj, naj hoom, thiab thaij yeeb yaj kiab thiab cov phiaj (Merck 1996). Ethyl acetate siv feem ntau ua cov kuab tshuaj thiab cov tshuaj, tau txais kev nyiam vim tias nws tus nqi qis, tsis muaj tshuaj lom, thiab muaj ntxhiab. Piv txwv, nws feem ntau yog siv los ntxuav cov laug cam Circuit Court thiab hauv qee cov ntsia thawv kua roj vanish (acetone thiab acetonitrile kuj tseem siv). Kas fes taum thiab tshuaj yej nplooj yog decaffeinated nrog cov tshuaj lom neeg. Nws kuj tseem siv hauv xim tsev ua ib qho kev ua kom muaj zog los yog ua kom tawv tawv. [suav cov kev xav tau] Ethyl acetate muaj nyob hauv confectionery, naj hoom, thiab txiv hmab txiv ntoo. Hauv cov tshuaj tsw qab, nws nqus tau sai sai, tsuas yog ua rau cov ntxhiab tsw ntxhiab ntawm daim tawv xwb.

3 - 1 - Kuaj Xyuas siv

Hauv chav kuaj, cov khoom sib xyaw uas muaj cov tshuaj ethyl acetate feem ntau siv rau hauv kab ntawv chromatography thiab ntxiv rau. Ethyl acetate tsis tshua xaiv los ua cov tshuaj tiv thaiv vim tias nws muaj feem cuam rau hydrolysis thiab trans esterification.

3 - 2 - Muaj cawv hauv cawv

Ethyl acetate yog cov ester ntau tshaj plaws nyob rau hauv cawv, yog cov khoom lag luam ntawm cov kev hloov pauv ntawm cov organic acid - acetic acid, thiab cov cawv ethyl uas tsim tawm thaum lub caij fermentation. Cov aroma ntawm ethyl acetate yog qhov tshwj xeeb tshaj yog hauv cov cawv me thiab pab rau qhov kev nkag siab dav dav ntawm" fruitiness" hauv cov cawv.

3 - 3 - Tus neeg tua tus kheej

Hauv qhov chaw ntawm entomology, ethyl acetate yog tshuaj asphyxiant zoo rau kev siv hauv cov kab sau thiab kev kawm. Hauv lub thawv tua uas raug them nrog ethyl acetate, cov vapors yuav tua cov kab (feem ntau yog neeg laus) tua kab sai sai yam tsis muaj kev rhuav tshem nws. Vim tias nws tsis yog hygroscopic, ethyl acetate tseem ua kom cov kab mos mos ua kom txaus rau kev tso cai rau qhov tso kom haum rau kev sau.

Tshuaj pab (tsw); dag txiv ntoo; kuab tshuaj rau nitrocellulose, kua roj vanish, lacquers, thiab dav hlau dopes; kev tsim cov pa luam yeeb uas tsis haus luam yeeb, tawv muag, cov duab ua yeeb yaj kiab thiab cov paib, cov kab lo lo lo ntxhuav, tshuaj tsw qab; ntxuav cov ntaub, thiab lwm yam.

Yog tias koj txaus siab rau peb cov khoom lossis muaj lus nug, thov koj xav tiv tauj peb!

Cov khoom lag luam hauv qab patent yog muab rau R& D lub hom phiaj nkaus xwb. Txawm li cas los xij, lub luag haujlwm kawg tau txiav txim siab nrog cov neeg yuav khoom.

Cim npe nrov: ethyl acetate cas 141-78-6, tuam ntxhab, lwm tus neeg, Hoobkas, yuav, hauv Tshuag

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