Tetramethylsilane
Tetramethylsilane (TMS), CAS 75-76-3, with the chemical formula Si(CH3)4, is a highly volatile organosilicon compound. It is primarily recognised for its critical role as a calibration standard in Nuclear Magnetic Resonance (NMR) spectroscopy, providing a reference signal due to its intense, sharp signal at 0 ppm. TMS also finds applications in chemical synthesis and as a component in specialised organometallic reagents, owing to its unique silicon-carbon bonding.
NMR Spectroscopy Standard
Tetramethylsilane serves as the universal internal standard for 'H and ¹³C NMR spectroscopy, offering a single, sharp resonance at 0 ppm. Its low boiling point and inert nature ensure it does not interfere with sample analysis.
Chemical Synthesis
As a precursor and building block in organic synthesis, TMS is employed in reactions requiring a silicon source. Its reactivity is harnessed to introduce silicon into organic molecules, leading to the formation of various organosilicon compounds.
Organometallic Reagents
TMS can be a component or starting material in the synthesis of specific organometallic reagents. These reagents are valuable tools in modern organic chemistry for various transformations.
| Molecular weight | 88.22 |
|---|---|
| Linear formula | Si(CH3)4 |
| Assay | ≥99.99% trace metals basis |
| Grade | produced by Wacker Chemie AG, Burghausen, Germany |
| Form | liquid |
| Boiling point | 26-28 °C(lit.) |
| Density | 0.648 g/mL at 25 °C(lit.) |
| Melting point | −99 °C(lit.) |
| Refractive index | n20/D 1.358(lit.) |
| Vapour pressure | 11.66 psi (20 °C) |
| Autoignition temp | 842 °F |
| Storage temperature | 2-8°C |
Hazard statements
- H224Extremely flammable liquid and vapour
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
| Flash point | -27 °C / -16.6 °F |
|---|---|
| Transport (UN / ADR) | UN 2749 3 / PGI |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F+ |
| Risk statements (R) | 12 |
| Safety statements (S) | 3/7-16-33-45 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Tetramethylsilane (TMS) used for?
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Tetramethylsilane (TMS) is primarily used as an internal standard in NMR spectroscopy due to its sharp, intense signal at 0 ppm. It also finds applications in chemical synthesis and as a component in organometallic reagents.
What are the CAS number and chemical formula for Tetramethylsilane?
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The CAS number for Tetramethylsilane is 75-76-3, and its chemical formula is Si(CH3)4.
What grade and purity does Tech Serve Solutions supply for Tetramethylsilane?
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Tech Serve Solutions supplies Tetramethylsilane with an assay of ≥99.99% on a trace metals basis, produced by Wacker Chemie AG.
How should Tetramethylsilane be handled and stored?
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Tetramethylsilane is an extremely flammable liquid and vapour (H224). It should be stored in a cool, well-ventilated area, away from ignition sources, and handled with appropriate safety precautions, including grounding and bonding of containers.
Is Tetramethylsilane a controlled substance?
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The provided safety data does not indicate that Tetramethylsilane is a controlled substance.
How are Tech Serve Solutions' products packed and shipped?
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Tech Serve Solutions can pack and ship products internationally, adhering to all relevant transport regulations for hazardous materials like Tetramethylsilane.
How can I request a sample or quote for Tetramethylsilane?
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To request a sample or a quote for Tetramethylsilane, please contact our sales team through the website or by phone, providing your specific requirements.
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