Why does sodium peroxide and dried carbon dioxide not react

I don't think it's true that the textbook says that the reaction produces sodium carbonate and oxygen. At least not exactly. In my opinion, science is rigorous.

The so-called reaction between sodium peroxide and carbon dioxide should be said to react with pure carbon dioxide, not with hydrated carbon dioxide. It is true that it is difficult to have pure carbon dioxide in room temperature air, but if the moist carbon dioxide is dried (as in my experiment), it will not react. This shows that sodium peroxide and carbon dioxide do not react, so why do they actually react?

This is mainly due to the presence of water, that is, sodium peroxide reacts with water first, and its product sodium hydroxide reacts with carbon dioxide to produce sodium carbonate and oxygen. This reaction cannot be carried out without water.

The above personal supplementary opinions, please correct!

Thermodynamically speaking, any spontaneous reaction can not be characterized from the macroscopic level, because it is also controlled by kinetic velocity, for example: iron is oxidized by oxygen to ferric oxide, this reaction is known to everyone, but this reaction is not seen in the dry air at room temperature and pressure, this is because its reaction speed is very slow, at this time we usually think that the reaction cannot be carried out under this condition, if the reaction is in the moist air with the participation of water, the reaction will be accelerated. Therefore, the reaction conditions are very important, and the chemical reaction equation is written without specifying the reaction conditions, which only means that the reaction is thermodynamically feasible, but it does not mean that the reaction can be carried out under all circumstances (e.g.,

2Na2O2+2CO2==2Na2CO3+O2 He has no table reaction condition).

Because sodium peroxide reacts with water to form sodium hydroxide, and then sodium hydroxide reacts with carbon dioxide to form sodium carbonate.

Yes, I remember that the reaction coefficient was 2 2 2 2 1 to produce sodium carbonate and oxygen.

True or false? The first time I heard about it.

Analysis process: sodium peroxide reacts with water first, and then reacts with carbon dioxide, that is: 2Na2O2+2H2O=4NaOH+O2; 2naoh+co2=na2co3+h2o

Total equation: When CO2 is excessive, 2Na2O2 + 2CO2 = 2Na2CO3 + O2 (water is both reactant and product).

In excess of Na2O2, 2Na2O2+CO2+H2O=Na2CO3+2NaOH+O2

The ionic equation is: 2Na2o2+2co2==4na(+)2co3(2-)+o2。

The chemical formula of this reaction is: 2Na2O2+2CO2==2Na2CO3+O2.

Why does sodium peroxide react with carbon dioxide:

Sodium peroxide is an alkaline substance and carbon dioxide is an acidic gas, so the two will react chemically.

The equation for the reaction of sodium peroxide with carbon dioxide: 2Na O +2Co ==2Na Co +O.

The +1 valence oxygen element in sodium peroxide reacts with its own redox reaction, because there is -2 and 0 valence oxygen after the reaction. The redox reaction is regular, and the oxygen in carbon dioxide is -2 valence.

For Na O, according to the conservation of atoms, the mass that Na O increases in the reaction is actually 2Co O, i.e., the mass of 2Co, and according to 1molNa O 1molCo, the result can be seen as: Na o +Co=Na Co (note that the reaction does not actually take place).

Sodium Peroxide Uses:

1. Used as an analytical reagent, such as an alkaline oxidizing solvent for decomposing samples.

2. It is used as oxidant, preservative, deodorant, fungicide, bleach, etc. It can also be used to prepare hydrogen peroxide.

3. Used in medicine, printing and dyeing, bleaching and analysis reagents.

The chemical equation for the reaction of sodium peroxide and carbon dioxide: 2Na2O2 2CO2 2Na2CO3 O2.

Sodium peroxide, is an inorganic compound with the chemical formula Na2O2, which is a yellowish-white powder or granule. Decomposes when heated to 460. Quickly absorbs moisture and carbon dioxide in the air.

Contact with organic matter can cause combustion or ** and should be stored tightly sealed. It is used for bleaching animal and plant fibers, feathers, animal bones, etc., as a printing and dyeing agent for fabrics, carbon dioxide absorber in the air, ventilation agent in submarines, chemical reagents, oxidants and analytical reagents.

Storage method: Store in a cool, dry and well-ventilated warehouse, away from fire and heat sources, the storage temperature does not exceed 35, the relative temperature does not exceed 75, and the packaging is sealed. Pay attention to moisture and rain, should be stored separately from reducing agents, acids, alcohols, active metal powders, etc., do not mix storage, and the storage area should be equipped with suitable materials to contain leakage.

Prohibited substances: strong reducing agents, water, acids, flammable or combustible substances, alcohols, carbon dioxide, sulfur, reactive metal powders. Avoid contact conditions: friction, moist air. <>

2na2o2+2co2=2na2co3+o2↑。Na2O2 acts as an oxidizing agent and reducing agent, one O of Na2O2 is 1 valence to 0 valence oxygen, and the other O is reduced to 2 valence. 1molo2

Then there are 2 O's in the reactant from 1 to 0 (so 2). In addition, O binds to CO2 and is generally a disproportionation reaction.

For Na O, according to the conservation of atoms, the mass that Na O increases in the reaction is actually 2Co O, i.e., the mass of 2Co, and according to 1molNa O 1molCo, the result can be seen as: Na o +Co=Na Co (note that the reaction does not actually take place).

Uses of sodium peroxide1. It can interact with CO2 and release O2. According to this property, it can be used in oxygen-deficient situations such as mines, tunnels, diving, or spaceships to convert people's exhaled CO2 into O2 for breathing.

2. Sodium oxide can be used to remove H2O and CO2 impurities in O2.

3. It is commonly used as bleach, fungicide, disinfectant, deodorant, oxidant, etc. in industry.

The above content refers to Encyclopedia - Sodium Peroxide.