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79610

Sigma-Aldrich

Phosphorus pentoxide

desiccant, with moisture indicator

Synonym(s):

Sicapent®, Phosphoric anhydride, Phosphorus(V) oxide

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About This Item

Linear Formula:
P2O5
CAS Number:
Molecular Weight:
141.94
EC Number:
UNSPSC Code:
12352303
PubChem Substance ID:

vapor density

4.9 (vs air)

Quality Level

vapor pressure

1 mmHg ( 384 °C)
10 mmHg ( 238 °C)

form

powder, crystals or granules

quality

with moisture indicator

pH

1.5 (20 °C, 10 g/L)

mp

340 °C (lit.)

density

2.3 g/mL at 25 °C (lit.)

SMILES string

O=P12OP3(=O)OP(=O)(O1)OP(=O)(O2)O3

InChI

1S/O10P4/c1-11-5-12(2)8-13(3,6-11)10-14(4,7-11)9-12

InChI key

YWEUIGNSBFLMFL-UHFFFAOYSA-N

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General description

Phosphorus pentoxide (P2O5) is a phosphorous oxide. It participates in Pictet-Gams synthesis. Phosphorus pentoxide supported on alumina has been used for solvent-free and microwave-assisted synthesis of 1, 5-benzodiazepine derivatives.

Application

Phosphorus pentoxide may be used in the synthesis of dichlorine heptoxide (Cl2O7).

Legal Information

Sicapent is a registered trademark of Merck KGaA, Darmstadt, Germany

Pictograms

Corrosion

Signal Word

Danger

Hazard Statements

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1A

Supplementary Hazards

Storage Class Code

8B - Non-combustible corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Alumina/phosphorus pentoxide (APP) as an efficient reagent for the synthesis of 1, 5-benzodiazepines under microwave irradiation.
Kaboudin B and Navaee K.
Heterocycles, 1443-1446 (2001)
Eagleson M.
Concise Encyclopedia Chemistry, 836-836 (1994)
Eagleson M.
Concise Encyclopedia Chemistry, 215-215 (1994)
Ping-Jian Li et al.
Nano letters, 9(7), 2513-2518 (2009-07-09)
The single-crystal n-type and p-type ZnO nanowires (NWs) were synthesized via a chemical vapor deposition method, where phosphorus pentoxide was used as the dopant source. The electrical and photoluminescence studies reveal that phosphorus-doped ZnO NWs (ZnO:P NWs) can be changed
Radek Pohl et al.
Organic & biomolecular chemistry, 13(16), 4693-4705 (2015-03-24)
Systematic structure-activity studies on a diverse family of nucleoside phosphonic acids has led to the development of potent antiviral drugs such as HPMPC (CidofovirTM), PMEA (AdefovirTM), and PMPA (TenofovirTM), which are used in the treatment of CMV-induced retinitis, hepatitis B

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