Skip to Content
Merck
CN

708348

Silicomolybdic acid solution

Synonym(s):

Keggin heteropoly acid

Sign In to View Organizational & Contract Pricing.

Select a Size

About This Item

Linear Formula:
H4SiO4 · 12MoO3
CAS Number:
11089-20-6
NACRES:
NA.22
PubChem Substance ID:
329762788
UNSPSC Code:
12352301
MDL number:
MFCD00054151

Key Documents

View All Documentation
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

InChI

1S/12Mo.O4Si.4H2O.32O/c;;;;;;;;;;;;1-5(2,3)4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/h;;;;;;;;;;;;;4*1H2;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/q;;;;8*+1;-4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/p-4

SMILES string

O[Mo](=O)(=O)O[Mo](=O)(=O)O[Mo](=O)(=O)O[Si](O[Mo](=O)(=O)O[Mo](=O)(=O)O[Mo](O)(=O)=O)(O[Mo](=O)(=O)O[Mo](=O)(=O)O[Mo](O)(=O)=O)O[Mo](=O)(=O)O[Mo](=O)(=O)O[Mo](O)(=O)=O

InChI key

LMAWUDMBHTZUCF-UHFFFAOYSA-J

form

liquid

refractive index

n20/D 1.376

density

1.156 g/mL at 25 °C

Quality Level

100

Related Categories

Application

Reactant for:
  • Use in electrostatic synthesis of compounds comprising ultrathin layers of silicododecamolybdate anions and poly(allyl ammonium) cations
  • Preparation of charge transfer compounds with Keggin anions and 2,2′-biquinolinium
Silicomolybdic acid (Keggin Acid, SMA) can be used to prepare supported acid catalysts for various organic transformations. For example, it is used to prepare:
  • SMA immobilized on mesoporous silica spheres for hydrolysis of ammonia borane.
  • SMA doped carbon-ceramic composite electrodes for electrocatalytic reduction of bromate.
  • SMA supported on silica gel (SiO2) for Hosomi–Sakurai allylation of carbonyl compounds.
  • SMA supported on mesoporous SiO2 hollow spheres for Friedel–Crafts alkylation reaction.

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

12 - Non Combustible Liquids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKCZ3726
MKCW3931
MKCS6355
MKCR6692
MKCQ1598

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Preparation of hollow mesoporous silica spheres with immobilized silicomolybdic acid and their catalytic activity for the hydrolytic dehydrogenation of ammonia borane
Umegaki T, et al.
Microporous and Mesoporous Materials : The Official Journal of the International Zeolite Association, 223, 152-156 (2016)
Sol-gel-derived carbon ceramic composite electrodes bulk-modified with 1: 12-silicomolybdic acid
Wang P, et al.
New. J. Chem., 24(7), 481-483 (2000)
Silicomolybdic acid supported on silica gel: an efficient catalyst for Hosomi-Sakurai reactions
Murugan K, et al.
Tetrahedron, 67(31), 5621-5629 (2011)
Jian Dou et al.
Journal of the American Chemical Society, 134(39), 16235-16246 (2012-09-07)
Herein we report an inside-out preinstallation-infusion-hydration method for targeted synthesis of Keggin heteropoly acids (silicomolybdic acid, H(4)SiMo(12)O(40)) within mesoporous silica (SiO(2)) hollow spheres. In this process, discrete molybdenum dioxide (MoO(2)) nanoparticles with diameter size ranging from 25 to 60 nm

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