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Merck

T2786

Sigma-Aldrich

钨硅酸 水合物

别名:

硅钨酸

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10 G
$90.80
50 G
$218.00

About This Item

线性分子式:
H4[Si(W3O10)4] · xH2O
CAS号:
分子量:
2878.17 (anhydrous basis)
EC 号:
MDL编号:
UNSPSC代码:
12352301
PubChem化学物质编号:
NACRES:
NA.22

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表单

powder

溶解性

water: 100 mg/mL, clear, colorless

SMILES字符串

O.O[Si](O)(O)O.O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1.O=[W]2(=O)O[W](=O)(=O)O[W](=O)(=O)O2.O=[W]3(=O)O[W](=O)(=O)O[W](=O)(=O)O3.O=[W]4(=O)O[W](=O)(=O)O[W](=O)(=O)O4

InChI

1S/H4O4Si.H2O.36O.12W/c1-5(2,3)4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/h1-4H;1H2;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

InChI key

ACTPFSYIGLFGLY-UHFFFAOYSA-N

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相关类别

一般描述

钨硅酸水合物是酯化、氧化和其它化学反应中广泛使用的催化剂。[1][2]

应用

用于以下反应的反应物:
  • 制备硅钨酸盐丁基甲基咪唑溴离子液体杂化材料
  • 作为光催化剂,用于SnII取代的Keggin型多金属氧酸盐的合成
  • 硅钨酸/有机改性硅烷质子传导膜的制备
  • 利用Keggin阴离子制备电荷转移化合物
  • 用于二甲苯催化液相氧化的催化剂的制备
钨硅酸可用作以下反应的反应物:
  • 制备硅钨酸盐丁基甲基咪唑溴离子液体杂化材料。[3]
  • 作为光催化剂用于合成Sn(II)-取代的Keggin型多金属氧酸盐。[4]
  • 制备硅钨酸/有机改性硅烷质子传导膜。[5][6]
  • 与Keggin阴离子一起,用于制备电荷转移化合物。[7]
  • 制备催化剂,用于二甲苯的催化液相氧化。[8]

象形图

Exclamation mark

警示用语:

Warning

危险声明

危险分类

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

靶器官

Respiratory system

储存分类代码

11 - Combustible Solids

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

dust mask type N95 (US), Eyeshields, Gloves


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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Synthesis and characterization of hybrid molecular material prepared by ionic liquid and silicotungstic acid.
Rajkumar T and Rao G R
Materials Chemistry and Physics, 112(3), 853-857 (2008)
Catalytic liquid phase oxidation of p-xylene using transition metal substituted polyoxometalates.
Alekar N A, et al.
Indian Journal of Chemistry, 39A, 439-441 (2000)
Synthesis, properties and photochromism of novel charge transfer compounds with Keggin anions and protonated 2, 2?-biquinoline.
Gamelas J A, et al.
Polyhedron, 21(25-26), 2537-2545 (2002)
Heterogenization of a Tungstosilicic Acid Catalyst for Esterification of Bio-Oil Model Compound
P Prasertpong, et al.
Catalysts, 13, 38-38 (2023)
Silicotungstic acid/organically modified silane proton-conducting membranes.
Stangar U L, et al.
Journal of Solid State Electrochemistry, 9(2), 106-113 (2005)

Questions

1–2 of 2 Questions  
  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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