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298220 Sigma-Aldrich

Phosphorus pentoxide

powder, ACS reagent, ≥98.0%

Synonym: Phosphoric anhydride, Phosphorus(V) oxide

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Properties

Related Categories Chemical Synthesis, Dehydrating Reagents, Synthetic Reagents More...
grade   ACS reagent
vapor density   4.9 (vs air)
vapor pressure   1 mmHg ( 384 °C)
  10 mmHg ( 238 °C)
assay   ≥98.0%
form   powder
impurities   P2O3, passes test (lim. ~0.02%)
  ≤0.02% insolubles
mp   340 °C(lit.)
density   2.3 g/mL at 25 °C(lit.)
cation traces   NH4+: ≤0.01%
  heavy metals (as Pb): ≤0.01%

Description

Packaging

250, 500, 6×500 g in poly bottle

5 g in glass bottle

Application

Phosphorus pentoxide may be used for the vacuum distillation of 1-methyl-2-pyrrolidinone (NMP), which was employed as mobile phase in a chromatographic analysis.
It may be used as one of the reaction components in the synthesis of dichlorine heptoxide (Cl2O7) and transition-metal phosphides (Ni2P, Co2P and MoP). P2O5 supported on alumina can be used for the solvent-free and microwave-assisted preparation of 1, 5-benzodiazepine analogs. P2O5/KX (X = Br, I) reagent system may be used for the transformation of alcohols into the corresponding alkyl iodides and bromides.

Price and Availability

Suggested Laboratory Gloves


Laboratory GlovesThis substance has been tested against several types of hand protection for CE compliance. Click below to find the recommended gloves for handling this product.




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Safety & Documentation

Safety Information

Symbol 
GHS05  GHS05
Signal word 
Danger
Hazard statements 
Supplemental Hazard Statements 
Reacts violently with water.
RIDADR 
UN 1807 8 / PGII
WGK Germany 
1
RTECS 
TH3945000

Documents

Certificate of Analysis

Certificate of Origin

Protocols & Articles
Peer-Reviewed Papers
15

References

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