Skip to Content
Merck

420816

LUDOX® HS-40 colloidal silica

40 wt. % suspension in H2O

Synonym(s):

Silica preparation

Sign In to View Organizational & Contract Pricing.

Select a Size


About This Item

Linear Formula:
SiO2
CAS Number:
Molecular Weight:
60.08
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352309
MDL number:
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Product Name

LUDOX® HS-40 colloidal silica, 40 wt. % suspension in H2O

InChI

1S/O2Si/c1-3-2

SMILES string

O=[Si]=O

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

description

colloidal

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

Quality Level

Looking for similar products? Visit Product Comparison Guide

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

General description

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

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


Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Deposition of oriented zeolite A films: in situ and secondary growth
LC Boudreau, et al.
Journal of Membrane Science, 152, 41-59 (1999)
Control of the pore size distribution inside the RuO2 catalyst by using silica nanosphere particle for highly efficient water electrolysis
C Baik et al.
Microporous and Mesoporous Materials : The Official Journal of the International Zeolite Association, 309, 110567-110567 (2020)
Optimization of process parameters on the extrusion of honeycomb shaped monolith of H-ZSM-5 zeolite
A Aranzabal, et al.
Chemical Engineering Journal, 162, 415-423 (2010)
Economical synthesis of high-silica LTA zeolites: A step forward in developing a new commercial NH3-SCR catalyst
D Jo, et al.
Applied Catalysis. B, Environmental, 243, 212-219 (2019)
The separation of cells and subcellular particles by colloidal silica density gradient centrifugation.
Wolff D A.
Methods in Cell Biology, 10, 85-104 (1975)

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