Ethanol oxygen silver catalysis, what is the catalytic oxidation of ethanol?

1) C2H5OH---CH3CHO+H2 (Condition: Heating) This is a reversible reaction that proceeds to a very small extent.

2) 2Cu + O2 = 2Cuo (Condition: Heating).

Cuo + H2 = Cu + H2O (Condition: Heating, Phenomenon: Black Cuo turns red) The above reaction is irreversible.

Add all the above equations to get the total reaction of ethanol-catalyzed oxidation:

2C2H5OH+O2---2CH3CHO+2H2O (conditions: Cu catalysis, heating).

Finally, acetaldehyde, copper or silver is generated as catalysts (i.e. intermediates) to reduce the activity of the reaction.

Ethylene oxide ether cannot be obtained, which can be explained by the bond energy of organic chemistry at the university.

Ethanol does not appear to produce ethylene oxide.

Properties: Also known as ethylene oxide. Also known as oxane.

Aliphatic simplest ring ether. It is a colorless gas at room temperature, and a colorless and easy-flowing liquid at low temperature. It smells like ether.

Melting point. Boiling point. Relative density.

Refractive index. Flash point (open cup) <. ** Limit 3 100 in the air.

It is miscible with water, ethanol and ether and many other organic solvents. Chemically active, easy to open the ring reaction. It is prepared by direct oxidation of ethylene with oxygen or air in the presence of silver catalyst, and the reaction products are prepared by absorption, desorption and distillation.

are formed into ether.

It is only known that ethylene oxidation can be used to make epoxy ether.

Acetaldehyde to ether is dehydrated by concentrated sulfuric acid. The same.

Ethanol catalyzes oxidation to produce acetaldehyde and water, and the reaction equation is: 2ch3ch2oh+o2cu or ag2ch3cho+2h2o, 2ch3ch2oh+o2cu or ag 2ch3cho+2h2o. Heating is a reversible reaction that proceeds to a very small extent.

The valency of hydrogen in hydrogen increased, and the valency of carbon in benzene decreased. The redox reaction in organic is usually divided into oxidation reaction and reflex reaction, which mainly depends on whether the organic molecule is oxidized or reduced.

Common oxidation reactions: (1) Oxidation of alcohols: Alcohol to form aldehydes (2) Oxidation of aldehydes

Aldehydes form acids (3) combustion oxidation of organic matter, nuclear oxidation with a strong oxidant of acidic potassium permanganate solution. Can be oxidized by silver ammonia solution or newly prepared Cu(OH)2 suspension: aldehydes, formic acid and formate, glucose, maltose.

In the presence of catalysts (Ni, Cu, Pt, PD, etc.), alkanes are obtained by addition to hydrogen. Aldehydes, ketones and hydrogen are added to obtain alcohol, and the yield is high.

Ethylene can react with oxygen under the catalysis of silver to form ethylene oxide.

2ch2=ch2+o2---ag---2c2h4o In this reaction, silver does not participate in the reaction, but only acts as a catalyst.

Ethanol reacts with oxygen catalyzed by copper or silver, and is one of the industrial production methods for the preparation of aldehyde acetaldehyde. The reaction equation is as follows:

B, H2O2 reacts with Mno2 to form O2

c, ethanol vapor is provided.

E, dry gas, F, ethanol reacts with O2.

d, anhydrous copper sulfate to test the water generated by the reaction.

a, newly produced copper hydroxide suspension, test the acetaldehyde generated.

E is a little unsure of where it is, and the rest should be fine.

Conjecture: The product of catalytic oxidation of ethanol is acetaldehyde.

b The long-necked funnel lowers the liquid and reacts with the solids at stake, producing a gas that drives the flow of gas in the whole plant.

c Ethanol is heated in a beaker water bath to make it easier to vaporize.

d Catalytic oxidation reaction device for ethanol.

e Absorbs the water vapor generated during catalytic oxidation and dries the gas flowing into the next unit.

f Verify that acetaldehyde is produced during the catalytic oxidation of ethanol.

a?Absorbing exhaust fumes?

CH3CH2OH+CUO=CH3CHO+CU+H2O on the carbon attached to the alcohol hydroxyl group, if there are two of them called H, then catalytic oxidation is used to generate aldehydes with the same number of carbon atoms.

There is only one h, which is catalytically oxidized to form ketones with the same carbon atom.

If there is no Mori H, it cannot be positively oxidized by the catalytic band.

The equation for the ethanol-catalyzed oxidation reaction is as follows:

Step 1:

2cu+o2=(heating)2cuo;

Step 2:

C2H2OH+CUO CH3CHO+CU+H2O;

For example, the total equation is:

2ch3ch2oh+O2 (Cu AG, heated) 2ch3CHO+2H2O. The catalytic oxidation of ethanol is a method for preparing acetaldehyde in the laboratory, and the process needs to be heated to make the ethanol volatilize so that it can be better mixed with oxygen.

Uses of ethanol:

50% ethanol can be used for physical depyretic and has a cooling effect.

50% alcohol can be used to rub the body of people who have been bedridden for a long time.

75% ethanol has the effect of sterilization and disinfection, which can be used for ** disinfection, medical device disinfection, iodine wine deiodization, screen cleaning, etc.

of ethanol can be used as fuel, for example for alcohol lamps, alcohol stoves, etc.

5. Ethanol can be used to make wine after fermentation, and ethanol is the main component of wine.

6. Ethanol can be mixed into gasoline as vehicle fuel.

Catalytic oxidation of ethanol:

Catalytic oxidation of ethanol is the reaction of ethanol and oxygen to produce acetaldehyde and water. The experimental process is copper and oxygen to form copper oxide, and copper oxide and ethanol to form formaldehyde, copper and water.

The catalytic effect in the reaction is Cu, and the copper oxide on the surface is the intermediate product. Copper oxide is heated for a period of time, and then ethanol is heated so that the ethanol vapor passes into the copper oxide powder, and the black copper oxide soon turns red.

Conclusion:

(1) Ethanol can react with sodium metal to produce hydrogen, but it is not as violent as water and sodium metal.

2) Reactive metals (potassium, calcium, sodium, magnesium, aluminum) can replace hydrogen in the hydroxyl group of ethanol.

The equation for the complete combustion of ethanol:

C2H5OH+3O2 2CO2+3H2O (condition is ignition).

The equation for catalytic oxidation of ethanol:

2ch3ch2oh+o2 2ch3cho+2h2o (condition is catalyst) (this is the total equation).

The equation for ethanol to undergo the elimination reaction:

CH3CH2OH CH2=CH2+H2O (the condition is concentrated sulfuric acid 170 degrees Celsius).

Intermolecular dehydration occurs between two molecules of ethanol: 2ch3ch2oh ch3ch2och2ch3+h2o.