Does elemental copper add hydrogen peroxide to the reaction

Hydrogen peroxide does not react with copper, and although hydrogen peroxide is oxidizing, it is not enough to oxidize elemental copper alone. But add some acids, such as hydrochloric acid, sulfuric acid, etc., and the reaction can be done.

The chemical equation of the reaction with the addition of sulfuric acid: Ho +Cu+H So = Cuso +2HO

Hydrogen peroxide alone does not react with copper, but copper has a catalytic effect on the decomposition of hydrogen peroxide.

In 10ml of 10% sample solution, add 5ml of dilute sulfuric acid solution (TS-241) and 1ml of potassium permanganate solution (TS-193). Bubbles should occur, and the purplish-red color of potassium permanganate disappears. It is acidic to litmus. It is explosive in case of organic matter.

Please note that I have also done this experiment at home, and first of all, it is undeniable that hydrogen peroxide contains a large number of original oxygen atoms [O], which has extremely strong oxidizing properties, which oxidizes Cu and forms various oxides of copper. This is the oxide that plays a catalytic decomposition role, which is an exothermic reaction that can be difficult to stop once started.

The mist produced is the reaction exothermic that produces water vapor as well as hydrogen peroxide vapor which is lower than the boiling point of water.

Also, the landlord must have used a thicker hydrogen peroxide in the experiment, such as the commercially available 30.

What's upstairs, do hydrogen peroxide and copper reflect copper ions? According to what I learned in high school, this reflection is not valid at all, even if the reaction is to generate oxygen, fogging is normal, and many reactions will bring out a lot of water vapor, I suspect that it is water vapor, the reaction is too violent, when hydrogen peroxide decomposes, it brings out water vapor, and it is dangerous to put a large amount of hydrogen peroxide directly into the metal, but fortunately, the activity is not strong, or it is possible to generate hydrogen, hydrogen peroxide is extremely unstable, and it can even be directly decomposed into hydrogen and oxygen.

It doesn't have to be hot to generate heat or bring out water vapor I have an air conditioner in the machine that has a humidifier in it, and the water that comes out is saturated steam, but the temperature is lower than the air, the water vapor is not all hot, and there is water vapor in the cold and snowy air in winter, and I only know that there is a reaction, and I have never seen hydrogen oxide produce hydrogen, and that reaction is dangerous, and the heat is released and the hydrogen and oxygen are together ......

Hydrogen peroxide is colorless, and copper has reacted, if the product does not contain solids, then there must be copper ions produced, and the solution of copper is generally yellow-green, which can prove that hydrogen peroxide contains impurities.

Copper may have been oxidized by hydrogen peroxide, and at the same time as it generates heat, it may decompose hydrogen peroxide, and in the case of fog, it may be water vapor!

There must be impurities, can you tell us about the solution after the reaction?

For example, the color of the solution, whether there is precipitation or not.

Copper oxide and hydrogen oxide per acre.

React. cuo ten h2o2 = cuo 2 ten h2o

Wild chemical equation for the reaction of copper and hydrogen peroxide.

2Cu ten 2h2o2 = 2cuo ten 2h2o

In fact, in this reaction, copper oxide or copper is only buried as a catalyst, although Xiao and Wang participate in the reaction, but the reaction remains unchanged. The total equation is 2h2o2=cuo=2h2o+o2 bumper boy.

cuo+h2o2=cu+h2o+o2↑

cu+h2o2=cuo+h2o

Copper oxide reacts with hydrogen peroxide to produce oxygen and water, and copper oxide is not reversed as a catalyst; Copper and hydrogen peroxide react to form copper ions and water.

Hydrogen peroxide and copper oxide will not react directly, mainly because the copper oxide wax shed may promote the decomposition of hydrogen peroxide in Changhua.

2H2O2=2H2O+O2 Cuo catalytic Cu is similar.

Copper powder is calcined at high temperature to form black copper oxide, 2Cu+O = 2Cuo copper oxide plus hydrochloric acid dissolves into copper chloride, Cuo + 2HCl = CuCl +Ho copper chloride plus sodium hydroxide.

Copper hydroxide is generated.

CuCl +2NaOH = Cu(OH) +2NaCl can also react copper directly with strong oxidizing acids (sulfuric acid, nitric acid) to form copper sulfate.

or copper nitrate, which is then reacted with alkali.

Elemental copper and hydrogen peroxide react with acid, and eventually form bivalent copper salts and water, elemental copper is oxidized to form bivalent copper, hydrogen peroxide is reduced, and negative monovalent oxygen forms negative bivalent oxygen.

Copper hydroxide is heated to 60-80 and darkened, and then decomposes into black copper oxide and water at a high temperature.

cu(oh)2==△cuo+h2o

Copper oxide has the following reactions.

4cuo 2cu2o+o2 (gas) (reaction conditions: 1026, cuo decomposes at 1026 degrees).

Therefore, copper hydroxide heating will produce cuprous oxide, and the condition is that it is high enough.

Copper hydroxide is heated to 60 degrees to 80 degrees before the cavity darkens, and the temperature is rounded to allow high decomposition into black copper oxide and water.

Copper hydroxide is equal to copper oxide plus water, copper oxide has a reaction of 4 copper oxide, which is equivalent to cuprous oxide plus oxygen.

Conditions: 1026 degrees Cuo decomposes at 1026 degrees, so copper hydroxide heating will form cuprous oxide.

1. Cavitation copper in the oxygen zone first reacts with acids, such as dilute sulfuric acid, dilute hydrochloric acid, and dilute nitric acid, to produce salts with copper ions.

2. Salt reacts with alkali, such as sodium hydroxide and potassium hydroxide, to produce copper hydroxide.

3. Copper oxide cannot react with water to produce copper hydroxide. The hydrate corresponding to the oxide is insoluble in water, so the oxide is not in a state and can react with water. For example:

Iron hydroxide, aluminum hydroxide, zinc hydroxide, copper hydroxide sail grip, ferrous hydroxide, etc. are insoluble in water, and their corresponding oxides, iron oxide, alumina, zinc oxide, copper oxide, ferrous oxide can also not react with water. Sodium hydroxide, potassium hydroxide, barium hydroxide, and calcium hydroxide are soluble or slightly soluble, and their corresponding oxides can react with water.