[Chemical Knowledge]：Properties, uses, upstream and downstream raw materials, storage methods, important applications of sodium peroxide

Sodium peroxide properties

Sodium peroxide (Na2O2) is an inorganic compound, a light yellow to white solid, with strong oxidation. In its molecular structure, sodium and oxygen are combined by ionic bonds to form sodium oxide (Na2O) and peroxide ions (O2 ^ 2-). This substance is very hygroscopic in the air, and when in contact with water, it will quickly decompose to form sodium hydroxide (NaOH) and oxygen (O2), releasing a lot of heat. The chemical reaction is as follows:

[2 Na 2O 2 2 H 2O → 4 NaOH O 2]

because of its strong oxidation, sodium peroxide can react with a variety of organic and inorganic substances, and is an important industrial oxidant.

Sodium peroxide uses

Industrial Applications

Sodium peroxide has a variety of uses in industry. It is often used in the bleaching process of pulp and textiles, which can effectively remove color impurities and improve the whiteness of the product. Sodium peroxide is used as a catalyst in the production of rubber and plastics to help accelerate the polymerization reaction. In the chemical industry, it is used as an oxidant and participates in various organic synthesis reactions, especially in the production of dyes and pharmaceuticals.

Environmental protection field

In the field of environmental protection, sodium peroxide is used as a sewage treatment agent, which can effectively degrade organic pollutants and improve water quality. It is also used in waste gas treatment to reduce air pollution by oxidizing and decomposing harmful gases.

Laboratory Applications

In the laboratory, sodium peroxide is often used as an oxidant and dehydrating agent to remove water from solutions or to provide a source of oxygen in synthesis reactions. It is also used in the preparation of certain gases, for example to produce pure oxygen by reaction.

Sodium peroxide upstream and downstream raw materials

Upstream raw materials

The main raw materials for the production of sodium peroxide are metal sodium (Na) and oxygen (O2). Sodium metal can be obtained by electrolysis of molten sodium chloride (NaCl), while oxygen can be produced by air separation technology or electrolysis of water. Sodium metal reacts with oxygen at high temperatures to produce sodium peroxide:

[2 Na O 2 → Na 2O_2]

Downstream Products

The downstream products of sodium peroxide are widely used in various fields. By reacting with water, sodium peroxide can generate sodium hydroxide and oxygen, which is of great significance in chemical production. Sodium peroxide can also react with organic compounds to generate a variety of valuable organic oxidation products, which are widely used in the pharmaceutical, pesticide and dye industries.

Sodium peroxide storage method

Due to the strong oxidizing and hygroscopic nature of sodium peroxide, its storage method must be very careful. Sodium peroxide should be stored in a dry, cool, well-ventilated place to avoid contact with water and moisture. Storage containers shall be made of corrosion-resistant materials such as stainless steel or special plastics and shall be tightly sealed to prevent ingress of moisture from the air.

The area where sodium peroxide is stored should be kept away from combustibles and reducing agents, as its strong oxidizing properties may cause combustion or explosion. The storage environment should be kept clean to avoid chemical reactions caused by pollutants. During transportation, sealed containers should be used and moisture-proof measures should be taken to ensure safety.

Safety and Handling

Appropriate safety measures must be taken when handling sodium peroxide. Personnel should wear protective clothing, gloves and goggles to avoid skin and eye contact with sodium peroxide. Avoid inhaling its dust during operation, and it is recommended to perform it in a well-ventilated place. In the event of a leak, it should be immediately covered with dry sand or inert material and cleaned carefully to prevent further reaction.

Waste disposal of sodium peroxide shall be carried out in accordance with hazardous waste management regulations. Unused sodium peroxide should be stored in the original packaging, avoid mixing with other waste. Waste should be handled by a professional body to ensure that it does not pollute the environment during the process.

Summary

Sodium peroxide is an important industrial chemical with multiple applications and high economic value. Its strong oxidation makes it play an important role in bleaching, oxidation and sewage treatment. Due to its chemically active nature, the storage and handling process must strictly follow safety regulations to avoid accidents. Understanding the properties, uses, upstream and downstream raw materials and storage methods of sodium peroxide is of great significance for the safe and efficient use of this chemical.