MilliporeSigma
All Photos(1)

Documents

79609

Sigma-Aldrich

Phosphorus pentoxide

puriss. p.a., ACS reagent, ≥98.0% (T)

Sign Into View Organizational & Contract Pricing

Synonym(s):
Phosphoric anhydride, Phosphorus(V) oxide
Linear Formula:
P2O5
CAS Number:
Molecular Weight:
141.94
EC Number:
PubChem Substance ID:
NACRES:
NA.21

grade

ACS reagent
puriss. p.a.

Quality Level

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

Looking for similar products? Visit Product Comparison Guide

Related Categories

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
29822043141979610
Phosphorus pentoxide puriss. p.a., ACS reagent, ≥98.0% (T)

Sigma-Aldrich

79609

Phosphorus pentoxide

Phosphorus pentoxide powder, ACS reagent, ≥98.0%

Sigma-Aldrich

298220

Phosphorus pentoxide

Phosphorus pentoxide ≥99.99% trace metals basis

Supelco

431419

Phosphorus pentoxide

Phosphorus pentoxide desiccant, with moisture indicator

Sigma-Aldrich

79610

Phosphorus pentoxide

vapor pressure

1 mmHg ( 384 °C), 10 mmHg ( 238 °C)

vapor pressure

1 mmHg ( 384 °C), 10 mmHg ( 238 °C)

vapor pressure

1 mmHg ( 384 °C), 10 mmHg ( 238 °C)

vapor pressure

1 mmHg ( 384 °C), 10 mmHg ( 238 °C)

assay

≥98.0% (T)

assay

≥98.0%

assay

≥99.99% trace metals basis

assay

-

form

powder or crystals

form

powder

form

powder

form

powder, crystals or granules

impurities

≤0.02% phosphorus trioxide (P2O3)

impurities

P2O3, passes test (lim. ~0.02%), ≤0.02% insolubles

impurities

≤0.02% insolubles, <100 ppm total metallic impurities

impurities

-

pH

1.5 (20 °C, 10 g/L)

pH

1.5 (20 °C, 10 g/L)

pH

-

pH

1.5 (20 °C, 10 g/L)

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

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Customers Also Viewed

Slide 1 of 6

1 of 6

Eagleson M.
Concise Encyclopedia Chemistry, 215-215 (1994)
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
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)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service