- published: 21 Jun 2013
- views: 7168
Ethyl may refer to:
Ethyl acetate (systematically, ethyl ethanoate, commonly abbreviated EtOAc or EA) is the organic compound with the formula CH3-COO-CH2-CH3, simplified to C4H8O2. This colorless liquid has a characteristic sweet smell (similar to pear drops) and is used in glues, nail polish removers, decaffeinating tea and coffee, and cigarettes (see list of additives in cigarettes). Ethyl acetate is the ester of ethanol and acetic acid; it is manufactured on a large scale for use as a solvent. The combined annual production in 1985 of Japan, North America, and Europe was about 400,000 tons. In 2004, an estimated 1.3M tons were produced worldwide.
Ethyl acetate is synthesized in industry mainly via the classic Fischer esterification reaction of ethanol and acetic acid. This mixture converts to the ester in about 65% yield at room temperature:
The reaction can be accelerated by acid catalysis and the equilibrium can be shifted to the right by removal of water. It is also prepared in industry using the Tishchenko reaction, by combining two equivalents of acetaldehyde in the presence of an alkoxide catalyst:
Glassware generously provided by http://www.alchemylabsupply.com/ Use the discount code "copper" for a 5% discount. Donate to NurdRage! Through Patreon (preferred): https://www.patreon.com/NurdRage Through Bitcoin: 1NurdRAge7PNR4ULrbrpcYvc9RC4LDp9pS In this video we synthesis ethyl propionate by fischer esterification of ethanol with propionic acid. This video sponsored by: Only HR Scott Malcheski osama alharby David Smith advisable Michael Zappe Emil Mikulic Dino Capiaghi Meshal Al-Enazi James Nicoll Lord Martin Hill Matthew Brunette Collin Wright Simon Bitdiddle Cullen Purkis Samuel Pelzer Carl Potter Roger Max Loutzenheiser Mathieu Robillard Phillip Hutchings
In this video, I purify ethanol from hardware-store denatured alcohol by hydrolyzing its ethyl acetate component with sodium hydroxide. Patreon link: http://www.patreon.com/DougsLab
This is a short video about the Ethyl maltol crystals available on juicecabin.com These are typically used to sweeten liquids and take off any 'sharp edges' with the flavouring, also imparts a cotton candy flavour. Here I show you how to make a 10% solution of ethyl maltol Product can be purchased on the link below for £2 http://www.juicecabin.com/misc/173-ethyl-maltol-crystals.html Lab Bottles here http://www.juicecabin.com/35-lab-bottles-glassware Juices Available 10ml £3, 30ml £6, 50ml £9 100ml £18 250ml £40 Sister Agatha Sicilian Cheesecake The Colonels Tobilla - Smooth vanilla and tobacco Sparkleberry by The Kid - various berries Miss Honey Dew's China Palace - Lychee and magic Bah Nah Nah Dream by the Kid - banana cream caramel Rubus Black - blackberry tobacco The Colonel's Horc...
This video demonstrates the synthesis of ethyl acetate through the esterification reaction of ethanol and acetic acid. This experiment involves the use of corrosive acids that can burn and blind you. Wear proper safety gear to avoid exposure. Also, be aware that ethyl acetate is an extremely flammable solvent, and take the necessary precautions when distilling it. Thanks for watching, and see you next time on Paradox Home Chemistry.
Ethyl acetoacetate is prepared from ethyl acetate by the Claisen condensation. Ethyl acetate containing 2% ethanol is treated with sodium metal, forming sodium ethoxide in-situ. After workup, the product is obtained in 25.5% yield based on ethyl acetate. Considerable ethyl acetate is recovered, but no attempt to recycle and quantify it was made. An error during workup is probably responsible for the reduced yield when compared with the original procedure in Organic Syntheses (www.orgsyn.org/orgsyn/orgsyn/prepContent.asp?prep=cv1p0235). Calcium chloride is NOT to be used to dry the organic phase prior to distillation, though this is called for in the original procedure. Magnesium sulfate or azeotropic drying is to be preferred. In addition, failure to vacuum fractionate the final product as...
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