Silicic Acid Esters | Silicates | Polysilicates | Orthosilicates | Silane Passivating Agents
| SiSiB® PC5410 |
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Tetramethoxysilane (TMOS) . Synonym: Tetramethyl Orthosilicate Countertype of Evonik DYNASIL M, Catylen D1100, ShinEtsu KBM-04 |
| Chemical Structure |
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| Introduction |
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Silicon esters are silicon compounds that contain an oxygen bridge from silicon to an organic group, for example, Si-OR. SiSiB® PC5410, the methyl ester of orthosilicic acid, is a colorless, low-viscosity liquid. It is industrially the most important of the tetraalkyl silicates.
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| Typical Physical Properties |
| Chemical Name: | Tetramethoxysilane |
| CAS No.: | 681-84-5 |
| EINECS No.: | 211-656-4 |
| Empirical Formula: | C4H12O4Si |
| Molecular Weight: | 152.22 |
| Silica Content: | 39% |
| Boiling Point: | 122°C [760mmHg] |
| Flash Point: | 26°C |
| Color and Appearance: | Colorless transparent liquid |
| Density [25°C]: | 1.032 |
| Refractive Index [25°C]: | 1.3688 [20°C] |
| Purity: | Min.99.0% by GC |
| Applications |
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SiSiB® PC5410 can be used as an inorganic binder for refractory fillers and pigments, like precision investment castings.
SiSiB® PC5410 can be used as a second backup casting coating. It cures faster than colloidal silica system.
SiSiB® PC5410 can be hydrolyzed to form silicon dioxide (silica). SiSiB® PC5410 can be used as a binder in zinc-rich (corrosion resistant) coating. SiSiB® PC5410 can be used as a starting material for sol-gel process. SiSiB® PC5410 can be used as a crosslinking agent for silicone sealant. SiSiB® PC5410 can be used as a drying agent in sealing compositions. SiSiB® PC5410 can be used as a chemical intermediate. Compared to ethyl silicate, SiSiB® PC5411 has a higher silica concentration which brings cost advantages, but methyl alcohol is generated in the usage environment, so measures are necessary to counteract this. |
| Packings |
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Net weight 200Kg steel drum, for more details, please visit Packing Centre. |
| Technical Library |
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Download Technical Data Sheet |


