Vinyl Tris(methylethylketoxime)silane (VOS)
Synonym: Винил-трис-(метил-этил-кетоксим)-силан
Vinyltris(methylethylketoximino)silane
Vinyltris(2-butanoneoxime)silane
Chemical Structure

Typical Physical Properties
| Chemical Name: |
Vinyltris(methylethylketoxime)silane |
| CAS No.: |
2224-33-1 |
| EINECS No.: |
218-747-8 |
| Formula: |
C14H27N3O3Si |
| Molecular Weight: |
313.47 |
| Boiling Point: |
115°C [0.12mmHg] |
| Flash Point |
63°C |
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| Color and Appearance: |
Colorless or yellowish transparent liquid |
| Density 25/25°C: |
0.990 |
| Refractive Index: |
1.4635 [25°C] |
| Min. Purity: |
95.0% |
Applications
PC7500 is used as a neutral curing agent in silicone sealant formulations. In most cases PC7500 is used in combination with methyloxime silane (PC7130). Compared to formulations based on methyloxime silanes only, the use of combinations containing methyl- and vinyloxime silanes leads to a shorter skin formation time of the silicone sealant without a reduction of the curing time. The ability of the sealant to withstand stress early, required for a certain elasticity and tear resistance, is achieved. |