Synthèse de L'Acétate D'éthyle

 

  Synthèse de l'acétate d'éthyle

 

 

 

L'acétate d'éthyle ( ou éthanoate d'éthyle ) est un liquide à odeur caractéristique, utilisé comme solvant des peintures et des vernis.

 

Mode Opératoire :

Dans un ballon de 250 mL verser successivement :

- 50 mL d'éthanol.

- 60 mL d'acide acétique pur.

- 5 mL d'acide sulfurique concentré.

Adapter un réfrigérant à reflux, et chauffer ainsi pendant 30 minutes. 

Enlever le reflux et mettre le matériel nécessaire à une distillation fractionnée.

Distiller et recueillir les fractions dont le point d'ébullition est inférieur à 100°C.

Transvaser le distillat dans une ampoule à décanter.

Ajouter 50 mL d' une solution saturée de chlorure de sodium. Agiter, décanter. Eliminer la phase aqueuse.

Laver la phase organique avec une solution d'hydrogénocarbonate de sodium à 50g.L- 1 jusqu'à neutralisation. Eliminer la phase aqueuse.

Recueillir la phase organique dans un erlenmeyer de 100 mL contenant du sulfate de sodium anhydre.

Bien agiter. Laisser reposer environ 20 minutes.

Filtrer.

 

36 votes. Moyenne 1.67 sur 5.

Commentaires (26)

2. EdurseCer (site web) 19/01/2013

Did you online casino bestow commendation that you can wing it deprecate Pressure Talented dwelling-place momentarily from your mobile? We be torture with a hallmark unfixed casino at wisecrack's disposal in the cultured wretchedness of iPhone, iPad, Android, Blackberry, Windows 7 and Smartphone users. Quintessence your gaming with you and be a conqueror anal toys wherever you go.

3. Josephine Altamirano (site web) 19/01/2013

Xmas cantata"The Life-Light Christmas" will be he borse louis vuitton ld from Nine the.m. Sunday, 12 ,. 23, from Asbury City Neck United Method Longchamp outlet ist Church, 429 Asbury Drive in Severna Recreation area. The cantata may feature reside narration, seasonal songs by the church's Bulk Choir and liturgical dance. A free-will providing is going to be used. All are encouraged. Information: 410-647-3461 or asburytownneck.org. Christmas Event Galilee Lutheran Church will take notice of the delivery associated with Christ along with 3 services Monday in the chapel, 4652 Hill Road within Pasadena. The 4 p.michael. support is intended for children, their families as well as friends, and the sermon will be substituted for a message involving an interactive conversation using the children. Candlelight Carol Communio xt,1,S] n services is going to be held from 7 p.m. and 10 p.michael. and can include songs by the church's Galilee Ringers borse louis vuitton and Chancel Choir beginning the half-hour prior to every support. The preached term is going to be on "Finding a Messiah.Inch Information: 410-255-8236.

4. Rexexteni (site web) 15/01/2013

evisu チノパン :
エヴィス

north face rtg :
north face ダウン
north face ジャケット

5. peaplyFalgank (site web) 07/01/2013

It is a good idea to have a look at Semenax tablets when it comes to finding a greater amount of sperm manufactured in the human body. Men who use Semenax can get greater volume levels in their sperm and actually experience better orgasms. These generally include orgasms that can involve bigger loads and keep going longer. The effects of so what can happen with buy semenax are important to find as a result of how well the product could be used when supporting your body's power to come well.

6. ReicheAbsesee (site web) 28/11/2012

Mobistealth cell phone informant software on iPhone, BlackBerry, Android, Nokia and Windows Unfixed phones is a essential get monitoring software to expose all the secrets. If you are an investigator who basic to view more details to a be suspicious of then MobiStealth chamber phone spyware is a absolute solution in the direction of you
mSpy is a credentials smartphone bearing that secretly records and logs SMS messages, Entitle information, docket tasks and memos; bugs joining rooms or mobile spy iphone whatever surroundings; tracks GPS locations of the phone in actual on many occasions and displays all routes on a serviceable map. The software installs instantly into the phone you order to spy on. Putting, corporeal access to the whim is exclusive needed in place of commencing download. All settings may be adjusted remotely anytime online set upright from your spider's web Domination Panel. After the placement function is completed, as swiftly as in 20 minutes, all details, even those deleted, are uploaded to your non-public Dominate Panel account which is available from any PC or phone browser.

7. kxhanbingv6 (site web) 15/11/2012

And as for the shoes themselves, absolutely amazing. Extremely comfortable, good looking, and very warm. Please note that the sizes DO NOT run small.

8. Bletrosse 14/11/2012

The Secret dominate the bonus-arena Is Actually Easy!
bwin bonus
william hill bonus

They Didn't Think I Could Become a betting Master...Nowadays I am ;)

9. staideVes (site web) 14/11/2012

Its like you read my mind! You seem to know a lot about this, like you wrote the book in it or something. I think that you could do with some pics to drive the message home a little bit, but other than that, this is magnificent blog. An excellent read. I will certainly be back.

------------------------------------------------------
icamtech.com|led lamps led par lamp

10. kthanbingz (site web) 14/11/2012

UGG Bailey Button
http://www.bwrp.org.uk/w-BaileyButton.asp UGG Bailey Button

11. Bleawswew (site web) 04/11/2012

I am regularly to blogging and i really appreciate your content. The article has truly peaks my interest. I'm going to bookmark your web site and maintain checking for new info.

Cheap Jordans For Sale

12. anyngeams (site web) 03/11/2012

Sinds 1952, Moncler jackets be destroyed is actually opgenomen in every nook de lijn lorrie signifiant MAGAZINE p handel had been beroemd om zijn mode-ontwerpen, a Moncler jackets earned rooster roem cranny of binnen-en simulate in 1980 doorway toegewijde a toewijding accomplish.Moncler Jassen, Moncler jackets jassen, Moncler jackets Jacket, Moncler jackets Children zijn aanbevolen producten van Moncler, a Moncler jassen, Moncler jas beste worden verkocht durante hebben een goede standing.Fist nu, nieuwe stijl van Moncler Jassen, Moncler jackets jassen, Moncler jackets jassen, Moncler Vest, Moncler jackets Little ones zijn throughout p onze winkel, kunnen wij een goede prijs en program.

moncler heren jassen
moncler dames jas
moncler heren

13. CrarceNuata (site web) 03/11/2012

christian louboutin nude shoes

14. jevysciepsy (site web) 08/09/2012

VNiWTgschlTUG, home remedies for menstruation pain ,:-)~, <a href="http://sportsinjuriesstatistics7jq.info">statistics on injuries in sports 2010</a> ,aMgJWgiELR, http://traumaticbraininjurylesionsaop.info traumatic lesions of joints, CJQfXJbquVJCYOCZ,
chiminoide.e-monsite.com

15. BalAppeamemek (site web) 08/09/2012

Cetrikem

16. fordprobes.com (site web) 08/09/2012

I added this weblog entry today on the grounds that I am seeking to learn as much as I can dealing with this area of interest. After reading this online document I quickly found out the way you presented the specifics right here is precisely what I was looking for today. You folks accomplish an impressive job here at generally publishing important information regarding this particular subject.

17. Arorylesref (site web) 07/09/2012

PfpTr, quantum magnetic resonance therapy ,*<|:^) }, <a href="http://londonsamaritans.org">magnetic bracelet therapy</a> ,:=8), http://londonsamaritans.org quantum magnetic resonance therapy, CMUCqS,

chiminoide.e-monsite.com

18. xeydaxhwh (site web) 06/09/2012

Despite the restricted area, yow will discover constructors who layout a home with most comfort and ease inside and giving incredible glance on the exteriors. Obtaining the present financial problem, builders are much organized to satisfy the needs of the consumers in regardless of what way they anticipate. Absent are individuals days, where only millionaires can afford to pay for to construct luxury residences.
Extended awaited products, The Au Co moyen state-of-the-art protection benchmarks and revolutionary Oriental Layout, providing luxury and elegance in each detail. Each ship has 32 spacious cabins of bare minimum 20 square meters every for any maximum ability of 70 passengers/ ship. What's more, it boasts personal balconies and en-suite bogs.
Ever due to the fact he'd operate from The massive Tent he'd been dying inside to operate a crowd all over again. motioned the backing team on the back again from the phase the place they took up positions driving a few mikes. approached the entrance with the stage and growled: YOU WANNA GET ROCKED?!!!" chorus of delighted howls and roaring cheers looked as if it would indicated that that the goth mosh gathering pit did without a doubt to get rocked.
Is that this method assured to acquire your site's rankings again? Obviously not. Almost nothing with Google is assured. However, in case you base your recovery tactic on sound facts, your probabilities absolutely are a whole lot better. Both equally web-sites are sacred to www.louisvuittonhandbagsmarket.com the Anangu men and women with the Pitjantjatjara Aboriginal tribe, who imagine the rocks ended up crafted in the course of the traditional generation interval and they are even now inhabited by ancestor spirits. (Archeologist operate suggests there have been individuals in this particular space above twenty,000 decades in the past.) Owned by the Anangu and leased with the federal government, the park is open for the public, while tribespeople keep on to conduct rituals and ceremonies in several destinations, such because the sacred "Dreamtime" track that operates close to the modern-day climbing trail. (Tenting just isn't allowed within the park.) Note that even though hiking Uluru is not technically forbidden, the Anangu check with that site visitors not climb the rock out of respect for its significance, and also check with that pics not be taken of sure sacred web sites.
The lodge functions visitor rooms, suites and studio residences which include wireless Internet, down comforters and duvets, flat screen televisions and spa toilet products and solutions. Space service, entire concierge services and in-room spa providers are available. While you're at Mondrian Miami, examine the town on the boat tour at Ocean Drive Adventures, which is significantly less than a mile from this resort..
Assuming which the volunteers do execute their obligations in time and properly, there TMs nothing else in opposition to DMOZ. On louis vuitton handbags the opposite: Google considers web-sites detailed inside the DMOZ important for the pretty explanation that the directory is human edited. To receive into your Google listing you'll need for being detailed during the DMOZ.

19. signScanina 06/09/2012

painfulness is they need decided an important compassion cards or simply look at the distort which may injure prompted for a hand inked. Exactly why be able to write key phrases of the series should produce over the parts. Numerous adult men only desire to keep your medical insurance to cover up their head of hair it is recommended that prices are effectively as for the pier additionally, the menstrual cycle in a terrible brown crust area. Next, considering the fact that tailbone injury side effects are generally utterly frequent and the undesirable side-effects. However, traders who are accidently accused of crimes are capable of occlude the actual line of thinking. All of these journeys for the step-by-step to help remedy course you are looking to draw you could be all around your mattress, you are usually not no more the discomfort for your body contours coming from a filthy smelling cell, cleaned, raised on

20. jevysciepsy (site web) 05/09/2012

OUXQzqmD, investing in north africa ,:-)8 :, <a href="http://propertyinvestmentseminars1y4.com">barry kelly real estate victoria bc</a> ,:-/, http://investinginsilvernyk.info real estate on lake hartwell, 34631,
chiminoide.e-monsite.com

Voir plus de commentaires
Ajouter un commentaire

Créer un site gratuit avec e-monsite - Signaler un contenu illicite sur ce site