Why are ethers not soluble in water
Substances from the group of ethers occur naturally in essential oils: Anethole is the main component of the anise oil obtained from the aromatic plant anise. It is used as a fragrance in soaps or as a flavoring in aniseed liqueur. Estragole is obtained from the spice tarragon. Eugenol is the main ingredient in clove oil.
The word ether (obsolete ether) is from the Greek word aither derived, which means something like "upper air" or "fire air". The word often refers to diethyl ether, which was previously used as an anesthetic. The term is used in chemistry today Ether an organic group of substances in whose molecules an oxygen atom with two organic radicals according to the general formula R.1-O-R2 connected is. In diethyl ether, two ethyl radicals are attached to the oxygen atom. There are also ring-shaped ethers such as the solvents tetrahydrofuran (THF) and dioxane:
|Aliphatic ether||Cyclic ether||Cyclic ether|
Diethyl ether and butanol have the same empirical formula, but different structural formulas and functional groups. One speaks therefore of a function isomerism. In contrast to an alcohol such as ethanol, the ethers are not water-soluble because they do not form hydrogen bonds. Therefore, their boiling points are also lower than those of the corresponding alcohols. They are not attacked by alkalis and diluted acids. Nitric acid and oxidizing agents oxidize the ethers. Explosive ether-air mixtures are formed with air. When standing in the air or with oxygen for a long time, they react to form explosive peroxides. The ethers have a narcotic effect and can be recognized by their typical ether odor.
Several processes are important for the preparation of the ethers. If you heat excess ethanol with sulfuric acid to around 130 ° C, an acid-catalyzed condensation of two ethanol molecules produces diethyl ether and water:
CH3ONa + CH3I. CH3-O-CH3 + NaI
In the laboratory, ethers are important solvents for extractions. However, due to the potential danger of explosion, they are now often replaced by other agents. Its use as an anesthetic is no longer widespread either. Aromatic ethers are used as aromas and fragrances.
Create a book individually: Basic text Ether
> Table of Contents
- How can technology be used in learning
- Can I import make-up to another country?
- Are shrimp shellfish
- How do galaxies collide
- How are stanzas used in poetry
- What are antibiotics aimed at
- How does Photoshop work
- Why did LaCroix stock go down
- What are non-magnetic materials
- Will smartphones ever completely replace cameras?
- When is the result of the SBI main examination
- Is the entrance exam necessary or not
- What is a Chennai Only moment
- What a challenging experience made you weaker
- How many rivers are there in Egypt
- What does Komorebi mean
- How to delete an SBI account
- Are cars built abroad really more reliable?
- Why does tomato sauce cause heartburn
- How can you easily distinguish between Spanish dialects
- How do you build a taser
- Which element is distilled water
- Why should i watch Joker 2019 film
- Who will give good college essays
- Why is Cancun so busy in October
- What are Nikola Tesla's works
- How did the Nazi concentration camps start?
- Can summer sausage be frozen
- What are the dimensions of the TV screen
- How useful history is to the modern economy
- Why does heartbreak feel so good
- What is meant by impedance
- Can be used on Netflix offline
- What are the properties of bismuth antimonide