Introduction：Basic information about Heptamethyldisilazane CAS 920-68-3, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
Heptamethyldisilazane Basic information
| Product Name: | Heptamethyldisilazane |
| Synonyms: | n,1,1,1-tetramethyl-n-(trimethylsilyl)-silanamin;BIS(TRIMETHYLSILYL)METHYLAMINE;N-1,1,1-tetramethyl-N-(trimethylsilyl)-Silanamine;N,1,1,1-tetramethyl-N-(trimethylsilyl)silylamine;1,1,1,2,3,3,3-Heptamethyldisilazane;HEPTAMETHYLDISILAZANE 97%;HEPTAMETHYLDISILAZANE 97+%;N N-BIS(TRIMETHYLSILYL)METHYLAMINE 99% |
| CAS: | 920-68-3 |
| MF: | C7H21NSi2 |
| MW: | 175.42 |
| EINECS: | 213-061-5 |
| Product Categories: | Organics;Si (Classes of Silicon Compounds);Silazanes;Si-N Compounds |
| Mol File: | 920-68-3.mol |
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Heptamethyldisilazane Chemical Properties
| Boiling point | 144-147 °C(lit.) |
| density | 0.799 g/mL at 20 °C(lit.) |
| refractive index | n20/D 1.421(lit.) |
| Fp | 27 °C |
| storage temp. | Flammables area |
| pka | 14.41±0.70(Predicted) |
| form | clear liquid |
| color | Colorless to Almost colorless |
| Specific Gravity | 0.798 |
| Water Solubility | Decomposes |
| Sensitive | Moisture Sensitive |
| Hydrolytic Sensitivity | 7: reacts slowly with moisture/water |
| BRN | 1737290 |
| CAS DataBase Reference | 920-68-3(CAS DataBase Reference) |
| EPA Substance Registry System | Silanamine, N,1,1,1-tetramethyl-N-(trimethylsilyl)- (920-68-3) |
Safety Information
| Hazard Codes | Xi |
| Risk Statements | 10-36/37/38 |
| Safety Statements | 26-36 |
| RIDADR | UN 1993 3/PG 3 |
| WGK Germany | 3 |
| F | 10 |
| TSCA | TSCA listed |
| HazardClass | 3 |
| PackingGroup | III |
| HS Code | 29319090 |
Heptamethyldisilazane Usage And Synthesis
| Chemical Properties | Clear liquid with amine odor |
Heptamethyldisilazane Preparation Products And Raw materials
| Preparation Products | Bis(trimethylsilyl)sulfate-->1,3-dimethyl-1,3-bis(trimethylsilyl)urea-->trimethyl-(6-trimethylsilyloxyhexoxy)silane |
