420816
LUDOX® HS-40 colloidal silica
40 wt. % suspension in H2O
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Synonym(s):
Silica preparation
Linear Formula:
SiO2
CAS Number:
Molecular Weight:
60.08
MDL number:
UNSPSC Code:
12352309
PubChem Substance ID:
NACRES:
NA.22
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description
colloidal
Quality Level
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
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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.
WGK
nwg
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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Find documentation for the products that you have recently purchased in 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)
The separation of cells and subcellular particles by colloidal silica density gradient centrifugation.
Wolff D A.
Methods in Cell Biology, 10, 85-104 (1975)
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)
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