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Silica gel Inorganic Sorbent

Name: Silica gel Inorganic Sorbent
Brand: SIAL

high-purity grade (puriss), 70-230 mesh

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About This Item

CAS Number:

7631-86-9

UNSPSC Code:

12352309

PubChem Substance ID:

329759185

NACRES:

SB.52

EC Number:

231-545-4

MDL number:

MFCD00011232

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Properties

Product Name

Silica gel, high-purity grade (puriss), pore size 60 Å, 70-230 mesh, for column chromatography

grade

high-purity grade (puriss)

Quality Segment

100

description

activity acc. to Brockmann and Schodder 2 - 3

form

powder

manufacturer/tradename

Sigma-Aldrich

technique(s)

LPLC: suitable

surface area

500 m²/g

matrix

Silica

matrix active group

silica

particle size

63-200 μm, 70-230 mesh

pore size

0.8 cm³/g pore volume, 60 Å

pH

6.0-7.5 (25 °C, 10% in H₂O)

bp

2230 °C

mp

>1600 °C

anion traces

chloride (Cl^-): ≤100 mg/kg, nitrate (NO₃^-): ≤50 mg/kg, sulfate (SO₄^2-): ≤50 mg/kg

cation traces

Cu: ≤5 mg/kg, Fe: ≤20 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg

separation technique

hydrophilic interaction (HILIC)

SMILES string

O=[Si]=O

InChI

1S/O2Si/c1-3-2

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

Description

General description

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 leading to form 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 removed by supercritical extraction

Application

Silica gel may be used in separation of single-walled carbon nanotube (SWNT) by simple filtration.

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This Item	236802	60742	60744
Supelco 60740 Silica gel	Supelco 236802 Silica gel	Supelco 60742 Silica gel	Supelco 60744 Silica gel
description high-purity grade (puriss), pore size 60 Å, 70-230 mesh, for column chromatography	description high-purity grade (Davisil Grade 636), pore size 60 Å, 35-60 mesh particle size	description high-purity grade, 60Å, 35-60 mesh particle size	description high-purity grade, suitable for column chromatography, 90Å, 15-25 μm
particle size 63-200 μm, 70-230 mesh	particle size 250-500 μm, 35-60 mesh	particle size 200-500 μm, 35-60 mesh	particle size 15-25 μm, 0.015-0.025 mm
matrix Silica	matrix Silica	matrix Silica	matrix Silica
matrix active group silica	matrix active group silica	matrix active group silica	matrix active group silica
separation technique hydrophilic interaction (HILIC)	separation technique hydrophilic interaction (HILIC)	separation technique hydrophilic interaction (HILIC)	separation technique hydrophilic interaction (HILIC)
pore size 60 Å, 0.8 cm³/g pore volume	pore size 0.75 cm³/g pore volume, 60 Å	pore size 0.8 cm³/g pore volume	pore size 90 Å mean pore size
form powder	form powder	form powder or crystals	form powder

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Storage Class

11 - Combustible Solids

WGK

nwg

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

PPE (personal protective equipment)

Eyeshields, Gloves, type N95 (US)

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