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708348

Sigma-Aldrich

Silicomolybdic acid solution

동의어(들):

Keggin heteropoly acid

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About This Item

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

형태

liquid

refractive index

n20/D 1.376

density

1.156 g/mL at 25 °C

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

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

InChI key

LMAWUDMBHTZUCF-UHFFFAOYSA-J

애플리케이션

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.

픽토그램

Exclamation mark
GHS07

신호어

Warning

유해 및 위험 성명서

H315,H319,H335

Hazard Classifications

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

표적 기관

Respiratory system

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 3

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

시험 성적서(COA)

제품의 로트/배치 번호를 입력하여 시험 성적서(COA)을 검색하십시오. 로트 및 배치 번호는 제품 라벨에 있는 ‘로트’ 또는 ‘배치’라는 용어 뒤에서 찾을 수 있습니다.

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문서 라이브러리 방문

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
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)
Silicomolybdic acid supported on silica gel: an efficient catalyst for Hosomi-Sakurai reactions
Murugan K, et al.
Tetrahedron, 67(31), 5621-5629 (2011)
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)

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