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381276

Supelco

Silica Inorganic Sorbent

120-140 mesh, 99.8%

Sinônimo(s):

Silica, fumed, Silica, Silicic anhydride, Silicon dioxide, Silicon dioxide amorphous

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About This Item

Fórmula linear:
SiO2
Número CAS:
112945-52-5
Peso molecular:
60.08
Número MDL:
MFCD00011232
Código UNSPSC:
23201100
ID de substância PubChem:
24863799
NACRES:
SB.52

product name

Silica, 99.8%

grau

standard

Nível de qualidade

100

Ensaio

99.8%

forma

powder

técnica(s)

LPLC: suitable

área da superfície

175-225 m2/g

matriz

Silica

Grupo ativo da matriz

silica

tamanho de partícula

0.011 μm

tamanho de poro

60 Å mean pore size

técnica de separação

hydrophilic interaction (HILIC)

cadeia de caracteres SMILES

O=[Si]=O

InChI

1S/O2Si/c1-3-2

chave InChI

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

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Descrição geral

Silica is a naturally occurring material in minerals, flint and in some plants in crystalline phase. Silica commonly used in industries is in synthetic form. Surface area, pore volume, pore size and particle size are independently controllable to some extent. The crystalline silica may be classified based on atmospheric pressure as:
a. Quartz: = 1143K
b. Tridymite: 1143 - 1743K
c. Cristobalite: = 1743, over 1973K it forms amorphous vitreous silica glass.

Aplicação

Silica was used in synthesis of silicalite. Silica was used to assist the catalytic growth of oxide and nitride nanowires.

Características e benefícios

Has interesting thickening and thixotropic properties, and an enormous external surface area.

Outras notas

Particle sizes are for primary particles, which form branched, chain-like aggregates a few tenths of a micron long.
May contain adsorbed H2O and CO2 which is removable by calcining at >900°C

Código de classe de armazenamento

13 - Non Combustible Solids

Classe de risco de água (WGK)

WGK 2

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

Eyeshields, Gloves, type N95 (US)

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Certificados de análise (COA)

Lot/Batch Number
MKCQ9164
MKCK7757
MKCH0255
MKCC9121
MKCB5325

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Sílica mesoporous, 3 μm particle size, pore size ~2 nm

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Sílica

Silicon dioxide −325 mesh, 99.5% trace metals basis

Sigma-Aldrich

342890

Silicon dioxide

Silicon dioxide fused (granular), 4-20 mesh, 99.9% trace metals basis

Sigma-Aldrich

342831

Silicon dioxide

Sílica monodisperse, non-porous, 50 μm

Sigma-Aldrich

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Sílica

Areia, quartzo branco ~99%, 0.5-10 μm (approx. 80% between 1-5 μm)

Sigma-Aldrich

S5631

Areia, quartzo branco

Areia, quartzo branco purum p.a., powder

Sigma-Aldrich

83340

Areia, quartzo branco

Mohadese Farhangian et al.
Industrial health, 59(6), 415-426 (2021-10-01)
The aim of the present study was to first fabricate an electrospun PVC nanofiber web and then assess its applicability in sampling and measuring the concentration of airborne crystalline silica by comparing analysis results with a commercial PVC membrane filter
Norma A Sánchez-Flores et al.
Journal of colloid and interface science, 323(2), 359-364 (2008-05-27)
Well crystallized silicalite-1 has been obtained from three sources of amorphous silica, namely, rice hull ashes, commercial Davisil, and a fume silica from Aldrich. The silicas were first dissolved in glycerol according to a recently described reaction. This reaction transforms
The Heat Capacities of Quartz, Cristobalite and Tridymite at Low Temperatures
Anderson, C. Travis.
Journal of the American Chemical Society, 58, 568-570 (1936)
Silica-assisted catalytic growth of oxide and nitride nanowires.
Tang, C. C., et al.
Chemical Physics Letters, 333, 12-15 (2001)
Srivalleesha Mallidi et al.
Nano letters, 9(8), 2825-2831 (2009-07-04)
Gold nanoparticles targeting epidermal growth factor receptor via antibody conjugation undergo molecular specific aggregation when they bind to receptors on cell surfaces, leading to a red shift in their plasmon resonance frequency. Capitalizing on this effect, we demonstrate the efficacy
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