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Phosphorus Pentoxide

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Identification
Molecular formula
P4O10
CAS number
1314-56-3
IUPAC name
Diphosphorus pentoxide
State
State

At room temperature, phosphorus pentoxide exists as a white solid. It is typically found in powder form but can also exist in a crystalline state when properly crystallized.

Melting point (Celsius)
340.00
Melting point (Kelvin)
613.15
Boiling point (Celsius)
360.00
Boiling point (Kelvin)
633.15
General information
Molecular weight
141.94g/mol
Molar mass
141.9440g/mol
Density
2.3900g/cm3
Appearence

Phosphorus pentoxide appears as a white crystalline solid. It often forms a glass-like transparent coating or powder when exposed to air due to its extreme affinity for water, with which it reacts to form phosphoric acid. The compound might also be encountered as a very delicate, fluffy, and dry powder.

Comment on solubility

Solubility of Diphosphorus Pentoxide

Diphosphorus pentoxide (P2O5) is a fascinating compound known for its distinctive solubility properties. Here are some key points to understand:

  • Solubility in Water: P2O5 exhibits limited solubility in water. When added to water, it can react to form phosphoric acid (H3PO4), indicating that while not very soluble, it does engage in a reaction with water rather than simply dissolving.
  • Solvent Interactions: This compound is more soluble in non-polar organic solvents compared to polar solvents. It demonstrates a unique ability to interact favorably with certain organic materials, enhancing its utility in various applications.
  • Factors Influencing Solubility: The solubility of diphosphorus pentoxide can be influenced by several factors, including temperature and pH level of the solvent. Elevated temperatures often enhance its solubility in different media.

In summary, while diphosphorus pentoxide has a complex solubility profile, it primarily presents challenges in water solubility, which makes it important for users to consider its reactivity and compatibility with different solvents when utilizing this compound in practical applications.

Interesting facts

Interesting Facts About Diphosphorus Pentoxide

Diphosphorus pentoxide, often represented as P2O5, is a fascinating chemical compound with a multitude of applications and characteristics that intrigue scientists and students alike. Here are some engaging facts:

  • Key Role in Chemistry: Diphosphorus pentoxide is known as a powerful dehydrating agent. It readily absorbs water, making it invaluable in various chemical reactions where moisture removal is crucial.
  • Formation and Structure: This compound is formed when phosphorus pentoxide is produced by burning phosphorus in excess oxygen. Its molecular structure features two phosphorus atoms bonded to five oxygen atoms, which create a unique and functional arrangement.
  • Applications in Industry: Diphosphorus pentoxide is widely utilized in the production of phosphate fertilizers, which are essential for modern agriculture. It serves as a critical ingredient in making various phosphoric acid derivatives.
  • Role in Analytical Chemistry: In analytical chemistry, P2O5 is employed for the detection and quantification of certain organic compounds due to its ability to convert organic materials into simpler forms for analysis.
  • Educational Significance: For chemistry students, learning about diphosphorus pentoxide offers a deeper understanding of bond formation, molecular structure, and reactivity, showcasing the principles of stoichiometry in phosphorus chemistry.

In summary, diphosphorus pentoxide is more than just a simple compound; it plays a significant role in various scientific fields and industries, illustrating the fascinating interplay between chemistry and practical applications. As one expert put it, "Understanding the properties of diphosphorus pentoxide opens the door to a deeper comprehension of phosphorus chemistry and its vital role in our world."

Synonyms
Phosphorus trioxide
Diphosphorus trioxide
1314-24-5
UNII-0LTR52K7HK
0LTR52K7HK
UN2578
Phosphorus sesquioxide
PHOSPHORUS TRIOXIDE [MI]
DTXSID00895014
UN-2578
DTXCID701324573
PHOSPHORUS OXIDE (P2O3)
Diphosphortrioxid
phosphorous trioxide
Phosphorus trioxide [UN2578] [Corrosive]