Molekula Tetramethylsilane
Specification & product details.
Tetramethylsilane (TMS) is a clear, volatile liquid organosilicon compound widely used as an internal reference standard in nuclear magnetic resonance (NMR)…
CAS number: 75-76-3
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Specifications
| Property | Value |
| Appearance | Clear, Colourless Liquid |
| Purity (GC) | ≥99.50% |
| Evaporation Residue | ≤0.05% |
| Refractive Index (n20/D) | 1.358 - 1.360 |
| Identification (NMR) | Conforms to structure |
Storage & handling
| Property | Value |
| Storage Temperature | 2 to 8 °C |
| Flash Point | -27 °C |
| Transport Class | 3 |
| Packing Group | I |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
| Appearance | Volatile liquid or gas |
| Melting Point | -99.06 °C |
| Boiling Point | 26.6 °C |
| Density | 0.641 g/cm³ at 25 °C |
| Water Solubility | 19.6 mg/L at 25 °C |
| Solubility (other solvents) | Insoluble in cold concentrated sulfuric acid; soluble in most organic solvents |
| Vapour Pressure | 718 mmHg at 25 °C |
| Refractive Index | 1.3587 |
| log P (octanol/water) | 3.24 |
Identification
| Property | Value |
| SKU | 90035588 |
| CAS Number | 75-76-3 |
| IUPAC Name | tetramethylsilane |
| EC Number | 200-899-1 |
| Molecular Formula | Si(CH3)4 |
| Molecular Weight | 88.22 |
| Exact Mass | 88.0708 |
| SMILES | C\[Si\](C)(C)C |
| InChIKey | CZDYPVPMEAXLPK-UHFFFAOYSA-N |
| InChI | InChI=1S/C4H12Si/c1-5(2,3)4/h1-4H3 |
| PubChem CID | 6396 |
| UN Number | UN2749 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29319090 |
| Tariff Code | 2931900090 |
Safety & GHS
Danger
- FlammableGHS02
- Hazardous to the EnvironmentGHS09
Hazard statements
- H224Extremely flammable liquid and vapour
- H411Toxic to aquatic life with long lasting effects
Precautionary statements
- P210Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P273Avoid release to the environment
- P280Wear protective gloves/protective clothing/eye protection/face protection
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Alternative names
(CH3)4Si; Me4Si; s16225; Si(CH3)4; Silane, tetramethyl-; Silicon tetramethyl; SiMe4; Tetramethylsilane, NMR grade TMS; Tetramethylsilicane; UN 2749
Product documentation
Product specification PDF. Batch-specific certificates of analysis and safety data sheets are available on request.
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