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79610

Sigma-Aldrich

Phosphorus pentoxide

desiccant, with moisture indicator

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Synonym(s):
Sicapent®, Phosphoric anhydride, Phosphorus(V) oxide
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

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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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
Jae-Hyung Ahn et al.
Microbial ecology, 68(2), 271-283 (2014-04-01)
The effects of water-saving irrigation on emissions of greenhouse gases and soil prokaryotic communities were investigated in an experimental rice field. The water layer was kept at 1-2 cm in the water-saving (WS) irrigation treatment and at 6 cm in
Eagleson M.
Concise Encyclopedia Chemistry, 836-836 (1994)
J Ma et al.
Colloids and surfaces. B, Biointerfaces, 81(1), 87-95 (2010-07-30)
Mesoporous 58SiO(2)-(38-x)CaO-xMgO-4P(2)O(5) glasses (where x=0, 5, 10 and 20 mol%) have been prepared by the sol-gel synthesis route. The effects of the substitution of MgO for CaO on glass degradation and bioactivity were studied in tris-(hydroxymethyl)-aminomethane and hydrochloric acid buffer
Eagleson M.
Concise Encyclopedia Chemistry, 215-215 (1994)

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