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1314-56-3 - Phosphorus(V) oxide, 98% - Phosphorus pentoxide - A13348 - Alfa Aesar

A13348 Phosphorus(V) oxide, 98%

CAS Number
1314-56-3
Synonyms
Phosphorus pentoxide

Size Price ($) Quantity Availability
500g 21.63
2500g 72.10
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Phosphorus(V) oxide, 98%

MDL
MFCD00011440
EINECS
215-236-1

Chemical Properties

Formula
P2O5
Formula Weight
141.94
Melting point
340°
Boiling Point
360° subl.
Density
2.39
Sensitivity
Moisture Sensitive
Solubility
Soluble in sulfuric acid. Insoluble in acetone and ammonia. Decomposes in water.

Applications

Phosphorus(V) oxide is used as a drying and dehydrating agent, a condensation reagent in organic synthesis and a laboratory reagent. It is also used in sugar refining and in fire extinguishing. Phosphorus pentoxide in DMSO forms an Onodera reagent which oxidizes alcohols. It is capable of converting mineral acids to anhydrides.

Notes

It is highly hygroscopic in nature and gets hydrolyzed to phosphoric acid. It is stored in a separate safety cabinet away from incompatibles such as alkalis and water.

Literature References

"

Silylates primary and sec-alcohols and phenols, in the presence of p-TsOH as catalyst. If the substrate contains acid-sensitive groups, PPTS can be used: Tetrahedron Lett., 4261 (1978). See Appendix 4.

In the presence of FeCl3, reacts with benzotrichlorides to give substituted benzoyl chlorides in good yields: J. Chem. Soc., Chem. Commun., 808 (1977).

Reacts with P2O5 to give trimethylsilyl polyphosphate ('PPSE'), a milder and more convenient dehydrating agent then polyphosphoric acid. For examples, and related reagents, see Phosphorus(V)­ oxide, A13348.

"

Meier, M. S. Phosphorus(V) Oxide. In Encyclopedia of Reagents for Organic Synthesis; Pacquette, L., Ed.; J. Wiley & Sons, New York, 2004.

Ebadi, M.; Mirdamadian, Z.; Ghanbari, D.; Moradi, L. The Effect of Aminated Carbon Nanotube and Phosphorus Pentoxide on the Thermal Stability and Flame Retardant Properties of the Acrylonitrile-Butadiene-Styrene. J. Cluster Sci. 2014, 25 (2), 541-548.

GHS Hazard and Precautionary Statements

Hazard Statements: H314

Causes severe skin burns and eye damage.

Precautionary Statements: P260-P280-P303+P361+P353-P305+P351+P338-P301+P330+P331-P304+P340-P310-P363-P405-P501a

Do not breathe dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Immediately call a POISON CENTER or doctor/physician. Wash contaminated clothing before reuse. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Merck
14,7355
Hazard Class
8
Packing Group
II
Harmonized Tariff Code
2809.10
TSCA
Yes
RTECS
TH3945000

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