[Chemical Knowledge]：Yellow phosphorus properties, uses, upstream and downstream raw materials, storage methods, yellow phosphorus introduction

Yellow phosphorus properties

Yellow phosphorus, also known as white phosphorus, is one of the allotropes of phosphorus. It appears as a white to pale yellow waxy solid at room temperature. Yellow phosphorus has a strong toxicity, and easy to spontaneous combustion, in the air will slowly oxidize and emit weak phosphorescence, so it needs to be stored in an oxygen-free environment. Yellow phosphorus has a melting point of 44.1°C, a boiling point of 280°C and a density of 1.82g/cm³. Its chemical properties are very lively, easy to react with oxygen, chlorine, sulfur and other elements to generate the corresponding compounds.

Yellow phosphorus use

Yellow phosphorus is widely used in industry. It is an important raw material for the production of phosphoric acid and its salts, and is widely used in fertilizers, detergents, food additives and other industries. Yellow phosphorus is the main ingredient in the production of pesticides and insecticides, such as dichlorvos and other organophosphorus insecticides. Yellow phosphorus is also used in the manufacture of matches, fireworks, luminescent materials and some specialty chemicals. In the metallurgical industry, yellow phosphorus is also used as a deoxidizer and alloy additive.

Yellow phosphorus upstream raw material

The production of yellow phosphorus mainly depends on phosphate rock, which is the main form of phosphorus in nature. In the process of producing yellow phosphorus, it is necessary to reduce phosphate rock, coke and silica at high temperature in an electric furnace to generate yellow phosphorus. Coke and silica act as reducing agents and fluxes, providing carbon and silicon elements, respectively, which react with phosphorus in the phosphate rock at high temperatures to eventually produce yellow phosphorus. Therefore, phosphate rock, coke and silica are the main upstream raw materials for yellow phosphorus production.

Yellow phosphorus downstream products

The downstream products of yellow phosphorus mainly include various phosphorus compounds and phosphates. Phosphoric acid is one of the most important downstream products of yellow phosphorus, which is widely used in fertilizer production, such as diammonium phosphate, monoammonium phosphate, etc. Yellow phosphorus is also used in the production of various organophosphorus compounds, such as organophosphorus pesticides and flame retardants. These products have important applications in agriculture, chemical industry, food, metallurgy and other fields. Yellow phosphorus can also be used to produce high-purity phosphoric acid for use in the electronics and semiconductor industries as an etchant and cleaning agent.

Yellow phosphorus storage method

Because yellow phosphorus is chemically extremely reactive and flammable, storage of yellow phosphorus requires special care. Usually, yellow phosphorus needs to be stored in water to isolate the air and prevent spontaneous combustion. In the process of storing yellow phosphorus, ensure that the storage container is well sealed to prevent water evaporation. The place where yellow phosphorus is stored should be far away from fire and heat sources, and have good ventilation conditions. In order to prevent accidental leakage and contamination, the storage container of yellow phosphorus should be made of corrosion-resistant materials, such as glass or stainless steel.

Yellow phosphorus safety measures

The high toxicity and flammability of yellow phosphorus determine that strict safety measures must be taken during its handling and use. Operators should be equipped with protective clothing, gloves and masks to avoid direct contact with yellow phosphorus. Yellow phosphorus should be operated in a special fume hood or explosion-proof environment to prevent it from contacting with air. In the event of a fire, do not use water to extinguish the fire, should use dry sand or dry powder fire extinguisher to extinguish. The area where yellow phosphorus is stored should be equipped with emergency eyewash and emergency shower devices for timely treatment in the event of an accident.

Yellow phosphorus environmental impact

The production and use of yellow phosphorus have a certain impact on the environment. If the waste gas, waste water and solid waste in the production process are not handled properly, it may cause pollution to the air, water and soil. Therefore, in the production process of yellow phosphorus, it is necessary to strictly control the discharge of waste and adopt advanced environmental protection technology and equipment to ensure that the discharge meets the standard. The use of yellow phosphorus should also pay attention to prevent its impact on the environment, minimize leakage and diffusion.

Yellow Phosphorus Market Analysis

The yellow phosphorus market is affected by a variety of factors, including raw material prices, production costs, supply and demand. In recent years, with the increasingly stringent environmental protection policies, the production and use of yellow phosphorus have been restricted to a certain extent, resulting in tight market supply and rising prices. The gradual reduction of phosphate ore resources and the increase in mining costs have also had an impact on the yellow phosphorus market. In the future, with the advancement of technology and the improvement of environmental protection requirements, yellow phosphorus production enterprises need to continuously optimize production processes and improve resource utilization efficiency to cope with market changes and competitive pressures.

future development trend

In the future, the development of yellow phosphorus industry will pay more attention to environmental protection and sustainability. With the global emphasis on environmental protection, yellow phosphorus production enterprises need to increase investment in environmental protection and adopt cleaner and more efficient production processes. With the continuous expansion of downstream applications, the demand for yellow phosphorus is expected to grow further, especially in the field of high-end chemicals and electronic materials. The recycling of yellow phosphorus and the comprehensive utilization of resources will also become an important direction for the development of the industry, and the efficient use of resources and the sustainable development of the environment will be realized through technological innovation.

As an important chemical raw material, yellow phosphorus has broad application prospects and market potential. The safety and environmental challenges in its production and use cannot be ignored. Through continuous technological progress and management optimization, the yellow phosphorus industry is expected to achieve a more green and sustainable development.