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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.

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Laboratory Gloves

Redi-Dri
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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