LUDOX® AS-40 colloidal silica
ALDRICH/420840 - 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 | 1.295 g/mL at 25 °C |
| description | colloidal |
| form | liquid |
| InChI | 1S/O2Si/c1-3-2 |
| InChI key | VYPSYNLAJGMNEJ-UHFFFAOYSA |
| pH | 9.1 |
| Quality Level | 200 ![]() |
| SMILES string | O=[Si]=O |
| surface area | ~135 m2/g |
| Application: | Ludox AS-40 is used as:• A filler material in the nanocomposite Nafion films • A precursor in the synthesis of micro-mesoporous carbon spheres |
| General description: | LUDOX® AS-40 colloidal silica is used as a silica source in the preparation of zeolites. |
| Legal Information: | LUDOX is a registered trademark of W.R. Grace & Co.-Conn. |
| Packaging: | 1, 4 L in poly bottle |
| Packaging: | 18 L in poly drum |
| RIDADR | NONH for all modes of transport |
| WGK Germany | nwg |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Density | 1.295 g/mL at 25 °C |
| UNSPSC | 12352309 |

