60765
Gel de sílica
high-purity grade, with ~15% calcium sulfate and fluorescent indicator, GF254, suitable for thin layer chromatography (TLC)
Faça loginpara ver os preços organizacionais e de contrato
About This Item
Número CAS:
Número CE:
Número MDL:
Código UNSPSC:
41115711
ID de substância PubChem:
NACRES:
NC.07
Produtos recomendados
grau
high-purity grade
Nível de qualidade
Formulário
powder
qualidade
with ~15% calcium sulfate and fluorescent indicator
fabricante/nome comercial
Sigma-Aldrich
técnica(s)
thin layer chromatography (TLC): suitable
área da superfície
500 m2/g
tamanho de partícula
<20 μm
>632 mesh
tamanho de poro
0.8 cm3/g pore volume
60 Å pore size
p.e.
2230 °C
pf
>1600 °C
cadeia de caracteres SMILES
O=[Si]=O
InChI
1S/O2Si/c1-3-2
chave InChI
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
Procurando produtos similares? Visita Guia de comparação de produtos
Descrição geral
Silica gel is a rigid 3D network of colloidal silica. It is exclusively used as a support material for the active titanium(III) centers in Ziegler-Natta catalysts. Silica gel allows a controlled fragmentation resulting in the formation of uniform polymer particles with narrow particle size distribution and high bulk density. Silica gel is classified as below:
a. Aquagel - pores are filled with water
b. Xerogel - by the process of evaporation, aqueous phase in the pores are removed
c. Aerogel - solvent is removed by supercritical extraction
a. Aquagel - pores are filled with water
b. Xerogel - by the process of evaporation, aqueous phase in the pores are removed
c. Aerogel - solvent is removed by supercritical extraction
Aplicação
- Chromatographic Separation: Silica gel is widely used as a stationary phase in chromatography for the separation of various chemical compounds. Innovations in silica gel modification, such as pentabromobenzyl group-modified silica gel, have enhanced the separation efficiency for metabolites like nicotinamide. This application is critical for pharmaceutical analysis and metabolomics studies, providing high precision and accuracy in the quantification of biologically relevant molecules (Ozaki et al., Analytical Biochemistry, 2022).
- Environmental Pollutant Detection: Silica gel is used to create molecularly imprinted polymers (MIPs) that selectively recognize and bind environmental pollutants. A notable application involves the embedding of quantum dots in molecularly imprinted silica gel to detect aminoimidazo-azaarenes (AIAs) in food samples. This method offers high selectivity and sensitivity, making it a powerful tool for food safety and environmental monitoring (Qiao et al., Current Analytical Chemistry, 2021).
produto relacionado
Nº do produto
Descrição
Preços
Código de classe de armazenamento
11 - Combustible Solids
Classe de risco de água (WGK)
nwg
Ponto de fulgor (°F)
Not applicable
Ponto de fulgor (°C)
Not applicable
Equipamento de proteção individual
Eyeshields, Gloves, type N95 (US)
Escolha uma das versões mais recentes:
Já possui este produto?
Encontre a documentação dos produtos que você adquiriu recentemente na biblioteca de documentos.
Os clientes também visualizaram
T Martin et al.
Chemical communications (Cambridge, England), (1)(1), 24-25 (2002-07-18)
Texture-related features of water intrusion in hydrophobised MCM-41 silicas render these materials especially suitable for energy dissipation in mechanical dampers.
A simple method for production of pure silica from rice hull ash
Kalapathy, U., A. Proctor, and J. Shultz.
Bioresource Technology, 73, 257-262 (2000)
Silica gel supported zirconocene dichloride/methylalumoxane catalysts for ethylene polymerization: Effects of heterogenation on activity, polymer microstructure and product morphology.
Janiak, Christoph, and Bernhard Rieger.
Angew. Makromol. Chem., 215, 47-57 (1994)
Nossa equipe de cientistas tem experiência em todas as áreas de pesquisa, incluindo Life Sciences, ciência de materiais, síntese química, cromatografia, química analítica e muitas outras.
Entre em contato com a assistência técnica