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420816

LUDOX® HS-40 colloidal silica

40 wt. % suspension in H2O

Synonym(s):

Silica preparation

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About This Item

Linear Formula:
SiO2
CAS Number:
7631-86-9
Molecular Weight:
60.08
NACRES:
NA.22
PubChem Substance ID:
24866353
UNSPSC Code:
12352309
MDL number:
MFCD00011232
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description

colloidal

Quality Level

100

form

viscous liquid

concentration

40 wt. % suspension in H2O

surface area

~220 m2/g

pH

9.8

density

1.3 g/mL at 25 °C

SMILES string

O=[Si]=O

InChI

1S/O2Si/c1-3-2

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

General description

LUDOX® HS-40 colloidal silica is used as a silicon (Si) source in the synthesis of zeolites, sulphate sodalite, and aluminosilicate gels.

Application

LUDOX® HS-40 colloidal silica is utilized:
  • As a template for generating mesopores
  • As an excellent binder that binds catalyst components together and provides high mechanical strength without changing catalytic properties
  • As a substrate to enhance substrate adhesion in zeolites
  • In the preparation of nitrogen-doped carbon (NMC), which serves as catalyst support

Legal Information

LUDOX is a registered trademark of W.R. Grace & Co.-Conn.

Storage Class

12 - Non Combustible Liquids

wgk

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

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