Merck
All Photos(1)

381276

Supelco

Silica

99.8%

Synonym(s):
Silica, fumed, Silica, Silicic anhydride, Silicon dioxide, Silicon dioxide amorphous
Linear Formula:
SiO2
CAS Number:
Molecular Weight:
60.08
Número MDL:
ID de substância PubChem:
NACRES:
SB.52

grau

standard

Nível de qualidade

teor

99.8%

forma

powder

technique(s)

LPLC: suitable

matriz

Silica

Grupo ativo da matriz

silica

tamanho de partícula

0.011 μm

tamanho de poro

60 Å mean pore size

área da superfície

175-225 m2/g

técnica de separação

hydrophilic interaction (HILIC)

SMILES string

O=[Si]=O

InChI

1S/O2Si/c1-3-2

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

Compare Similar Items

View Full Comparison

1 of 4

This Item
806811806854904457
Silica 99.8%

Supelco

381276

Silica

Silica mesoporous, 1 μm particle size, pore size ~2 nm

Sigma-Aldrich

806811

Silica

Silica mesoporous SBA-15, <150 μm particle size, pore size 8 nm, Hexagonal pore morphology

Sigma-Aldrich

806854

Silica

Silica monodisperse, non-porous, 1.0 μm

Sigma-Aldrich

904457

Silica

form

powder

form

powder

form

powder

form

powder

technique(s)

LPLC: suitable

technique(s)

-

technique(s)

-

technique(s)

-

matrix

Silica

matrix

-

matrix

-

matrix

-

matrix active group

silica

matrix active group

-

matrix active group

-

matrix active group

-

particle size

0.011 μm

particle size

1 μm

particle size

<150 μm

particle size

-

pore size

60 Å mean pore size

pore size

0.1-0.3 cm3/g pore volume, 1.9-2.3 nm pore diameter, ~2 nm pore size

pore size

0.8-1.00 cm3/g pore volume, 8 nm pore size

pore size

-

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

WGK

WGK 2

Ponto de fulgor (ºF)

Not applicable

Ponto de fulgor (ºC)

Not applicable

Equipamento de proteção individual

Eyeshields, Gloves, type N95 (US)

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

Product Information Sheet

More Documents

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