Phosphorus pentoxide CAS# 1314-56-3

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• Chemical Name:  Phosphorus pentoxide
• CAS No.:     1314-56-3
• Molecular Fomula: ：O5P2
• Molecular weight：141.94
• Appearance:white powder
• Sample：Available

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Description of high purity

• Phosphorus pentoxide is a chemical compound with molecular formula P4O10 (with its common name derived from its empirical formula, P2O5). This white crystalline solid is the anhydride of phosphoric acid. It is a powerful desiccant and dehydrating agent.

Basic Info of high purity

Basic Info
Numbering system
Properties
Safety Info
Basic Info

Numbering system

Properties

Safety Info

What is Phosphorus pentoxide?

• With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is Phosphorus pentoxide   which has developed particularly rapidly in recent years. Do you know about Phosphorus pentoxide?
• The official answer：Phosphorus pentoxide, also known as phosphoric anhydride, is a phosphorus oxide generated by the combustion of white phosphorus, yellow phosphorus, or red phosphorus in dry air, white soft powder, or colorless monoclinic crystals at room temperature, very easy to deliquescence, melting point 580 ~ 585 ℃, relative density 2.39, sublimation at 347 ℃. When heated to 563℃ under pressure, the crystal transforms into an amorphous glassy body (molten). Insoluble in acetone, ammonia, soluble in sulfuric acid. It is easy to absorb moisture in the air, very easy to absorb water, and has very strong dehydration, even can dehydrate concentrated sulfuric acid to generate sulfur trioxide, is a strong desiccant, reacts with water fiercely, emits heat and white smoke, 68 kcal of heat per mole of phosphorus pentoxide, usually with cold water to generate metaphosphoric acid, with hot water mainly to generate orthophosphoric acid, according to the amount of added water to generate different pentavalent phosphorus oxygenated acid, such as Metaphosphoric acid, pyrophosphoric acid, orthophosphoric acid, etc.

What’s the application of Phosphorus pentoxide?

• Used as raw material for the manufacture of high purity phosphoric acid, phosphates, and phosphate esters. Used as a drying agent for gases and liquids and a dehydrating agent for organic synthesis. Also used in the production of pharmaceuticals, pesticides, surfactants, etc. Used as a desiccant, dehydrating agent, sugar refining agent, and for the production of phosphoric acid, phosphorus compounds and aerosols, etc. Used as a doping source for semiconductor silicon, dehydrating and drying agent, condensation agent for organic synthesis and surfactant, also used in the preparation of high-purity phosphoric acid used as a raw material for the production of high-purity phosphoric acid, phosphates, and phosphate esters, also used in the manufacture of phosphorus pentoxide sols and H-based aerosols. It can be used as a desiccant for gases and liquids, a dehydrating agent for organic synthesis. Antistatic agent for synthetic fibers and refining agent for sugar. It is also used in the manufacture of optical glass, ultraviolet-transmitting glass, heat-insulating glass, microcrystalline glass and emulsion glass, etc. to improve the dispersion coefficient and the ability to transmit ultraviolet rays of glass. Also used in the production of pharmaceuticals, pesticides, surfactants. Used as semiconductor dopant and raw material for the preparation of high purity phosphoric acid. Desiccant and dehydrating agent. Organic synthesis condensation agent. High purity grade is used as a dopant for drawing optical fiber preform, N-type dopant for integrated circuit manufacturing, synthetic optical crystal.

Conclusion

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