LUDOX® HS-40 colloidal silica
ALDRICH/420816 - 40 wt. % suspension in H2O
Synonym: Silica preparation
CAS Number: 7631-86-9
Empirical Formula (Hill Notation): O2Si
Molecular Weight: 60.08
MDL Number: MFCD00011232
Linear Formula: SiO2
Product Type: Chemical
| concentration | 40 wt. % suspension in H2O |
| density | 1.3 g/mL at 25 °C |
| description | colloidal |
| form | viscous liquid |
| InChI | 1S/O2Si/c1-3-2 |
| InChI key | VYPSYNLAJGMNEJ-UHFFFAOYSA |
| pH | 9.8 |
| Quality Level | 100  |
| SMILES string | O=[Si]=O |
| surface area | ~220 m2/g |
| 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. |
| Packaging: | 1, 4 L in poly bottle |
| Packaging: | 18 L in VerSA-Flow™ |
| RIDADR | NONH for all modes of transport |
| WGK Germany | nwg |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Density | 1.3 g/mL at 25 °C |
| UNSPSC | 12352309 |