Description and features
SilQon MOS (Methyltrimethylethylketoxinesilane) actively controls moisture in adhesives, sealants, coatings, and composite systems as a high-performance ketoxime-functional silane additive. Moreover, it acts as a chemical desiccant by reacting with residual water, thereby stabilizing reactive chemistries and extending product shelf life.
To summarize the silane-based moisture scavanger improves handling, reduces formulation risks, and helps maintain surface quality in moisture-sensitive environment.
Availability
Europe: SilQon MOS is in stock in our local warehouse.
We can also serve Canada, South America, South Africa, and other markets. Please contact our sales department for more details.
Key benefits
- Enhances long-term stability of silane-based adhesives and primers.
- Prevents premature curing in SMP and MS polymer systems
- Improves clarity, gloss, and finish in coatings and composites
- Reduces foaming and skinning in moisture-reactive PU systems
This substance (CAS: 22984-54-9) has been registered under REACH (EC) 245/366/4
Product Identification
| CAS number | 22984-54-9 |
| EC number | 245-366-4 |
| IUPAC name | butan-2-one O,O’,O”-(methylsilanetriyl)oxime |
Specification
| Appearance | Liquid |
| Colour | Colourless to light yellowish transparent |
| Odour | Mild odour |
| Refractive Index at 25 ° C | 1.4548 |
Recommended applications
- Silane-based adhesives and primers: Improves bonding consistency and in-package stability.
- MS polymers and SMP formulations: Scavenges moisture to prevent unintentional curing.
- High-performance coatings and ink: Maintains surface appearance and optical quality.
- 1K and 2K polyurethanes: Ensures smppth, bubble-free curing in ambient conditions.
Packaging
The size of available packages can be checked with our sales department.
Storage
To ensure safety, store Silqon MOS in a cool place. In addition keep the containers tightly closed in a dry, cool and well-venilated place. Containers which are opened must be carefully resealed and kept upright to prevent leakage.
MSDS
For your convenience, a Material Safety Data Sheet (MSDS) is available for Silqon MOS, as well as all other products supplied by Vesta Chemicals BV.
An MSDS outlines the hazards of a product and explains how to handle, use, and store the product safely. Besides it provides important regulatory and emergency response information for the purchased product.
Molecular and structural information
| Molecular formula | C13H27N3O3SI |
| Molecular weight | 301.5 g/mol |
| Smiles notation | [Si](C)(O/N=C(\C)/CC)(O/N=C(\C)/CC)O/N=C(/C)\CC |
| InChi key | OGZPYBBKQGPQNU-STFOEXHGSA-N |
| Structural formula |  |
Physicochemical information
| Boiling point | 110~112° C (17mmHg) |
| Density/ relative density | 0.9740g/cm3 |
| Flash point | 106.7° C (Tag closed cup tested) |
| Vapour pressure | 0.142Pa at 25° C |
| Melting point | -22 ° C |
| Viscosity | 11.577mms/s |
| Water solubility | 36.63g/L |