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79609

Sigma-Aldrich

Phosphorus pentoxide

puriss. p.a., ACS reagent, ≥98.0% (T)

Synonym(s):

Phosphoric anhydride, Phosphorus(V) oxide

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About This Item

Linear Formula:
P2O5
CAS Number:
1314-56-3
Molecular Weight:
141.94
EC Number:
215-236-1
MDL number:
MFCD00148880
UNSPSC Code:
12352303
PubChem Substance ID:
24887481
NACRES:
NA.21
assay:
≥98.0% (T)
form:
powder or crystals

grade

ACS reagent
puriss. p.a.

Quality Level

200

vapor density

4.9 (vs air)

vapor pressure

1 mmHg ( 384 °C)
10 mmHg ( 238 °C)

assay

≥98.0% (T)

form

powder or crystals

impurities

≤0.02% phosphorus trioxide (P2O3)

pH

1.5 (20 °C, 10 g/L)

mp

340 °C (lit.)

density

2.3 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤10 mg/kg
nitrate (NO3-): ≤5 mg/kg

cation traces

As: ≤100 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
NH4+: ≤10 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

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).

pictograms

Corrosion
GHS05

signalword

Danger

hcodes

H314

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1A

supp_hazards

EUH014

Storage Class

8A - Combustible corrosive hazardous materials

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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Certificates of Analysis (COA)

Lot/Batch Number
BCCL4552
BCCK4657
BCCJ8441
BCCH8202
BCCG4651

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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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