Merck
CN
All Photos(5)

Documents

P4006

Sigma-Aldrich

Phosphotungstic acid hydrate

reagent grade

Sign Into View Organizational & Contract Pricing

Synonym(s):
Tungstophosphoric acid
Linear Formula:
H3[P(W3O10)4] · xH2O
CAS Number:
Molecular Weight:
2880.05 (anhydrous basis)
MDL number:
PubChem Substance ID:
NACRES:
NA.21

grade

reagent grade

Quality Level

form

powder

mp

~95 °C (lit.)

SMILES string

O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.OP(O)(O)=O

InChI

1S/H3O4P.H2O.36O.12W/c1-5(2,3)4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/h(H3,1,2,3,4);1H2;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

InChI key

AVFBYUADVDVJQL-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

General description

Phosphotungstic acid hydrate is a heteropolyacid.

Application

Phosphotungstic acid hydrate may be used as a staining agent for the transmission electron microscope (TEM) imaging of cetyltrimethylammonium bromide (CTAB) coated gold nanorods.
It may be used in the preparation of:
  • Phosphotungstic acid doped ormosil hybrid networks.
  • Niobia supported phosphotungstic acid (PTA) catalysts.
  • Titanium dioxide (TiO2) nanoparticles /phosphotungstic acid (HPW) films.

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Dam. 1 - Skin Corr. 1C

Storage Class Code

8A - Combustible, corrosive hazardous materials

WGK

WGK 2

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

Fabrication and characterization of heteropolyacid (H3PW12O40)/directly polymerized sulfonated poly (arylene ether sulfone) copolymer composite membranes for higher temperature fuel cell applications.
Kim YS, et al.
Journal of Membrane Science , 212(1), 263-282 (2003)
Competitive Reaction Pathway for Site-Selective Conjugation of Raman Dyes to Hotspots on Gold Nanorods for Greatly Enhanced SERS Performance.
Huang H, et al.
Small, 10(19), 4012-4019 (2014)
Shreyak Chaplot et al.
Journal of food protection, 82(5), 878-888 (2019-04-25)
Atmospheric cold plasma and peracetic acid-based hurdle approach for safety of poultry products was evaluated. Study demonstrates a significant synergetic approach to reducing Salmonella on raw poultry. Hurdle approach shows promising bacterial reduction but requires further optimization.
Vapor Phase Dehydration of Glycerol to Acrolein Over Phosphotungstic Acid Catalyst Supported on Niobia.
Viswanadham B, et al.
Catalysis Letters, 144(4), 744-755 (2014)
Tanja Schulz-Mirbach et al.
Frontiers in zoology, 10(1), 63-63 (2013-10-29)
While a number of studies have illustrated and analyzed 3D models of inner ears in higher vertebrates, inner ears in fishes have rarely been investigated in 3D, especially with regard to the sensory epithelia of the end organs, the maculae.

Articles

Discover the detection of milk adulteration by whey using spectrophotometric estimation of sialic acid in three different milk brands. Learn more about this essential technique in our application note.

Protocols

Enzymatic Assay of Neuraminidase applies to products that have a specification for neuraminidase content by enzymatic determination.

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