Octamethylcyclotetrasilazane
- CAS NO.：1020-84-4
- Empirical Formula: C8H28N4Si4
- Molecular Weight: 292.68
- MDL number: MFCD00046123
- EINECS: 213-817-4
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-08-12 17:17:06
What is Octamethylcyclotetrasilazane?
Chemical properties
white crystals
The Uses of Octamethylcyclotetrasilazane
Easily accessible octamethylcyclotetrasilazane (OMCTS) is used as a starting material to synthesize α-Si3N4 by an ammonia thermal synthesis[1].
References
[1] S. Schaible. “From Octamethylcyclotetrasilazane (OMCTS) via Crystalline Silicon Nitride Imide Si2N2NH to α-Si3N4.” Key Engineering Materials 40 3 1 (1993): 81–86.
Properties of Octamethylcyclotetrasilazane
| Melting point: | 96-99 °C(lit.) |
| Boiling point: | 225 °C756 mm Hg(lit.) |
| Density | 0.95 |
| refractive index | 1.4580 |
| Flash point: | 66 °C |
| solubility | soluble in Acetone |
| form | solid |
| pka | 14.85±0.20(Predicted) |
| Specific Gravity | 0.95 |
| color | White to Almost white |
| Sensitive | Moisture Sensitive |
| Hydrolytic Sensitivity | 7: reacts slowly with moisture/water |
| BRN | 976248 |
| CAS DataBase Reference | 1020-84-4(CAS DataBase Reference) |
| EPA Substance Registry System | Cyclotetrasilazane, 2,2,4,4,6,6,8,8-octamethyl- (1020-84-4) |
Safety information for Octamethylcyclotetrasilazane
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05  Skull and Crossbones Acute Toxicity GHS06 |
| GHS Hazard Statements |
H301:Acute toxicity,oral H314:Skin corrosion/irritation H318:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. P309:IF exposed or if you feel unwell: P310:Immediately call a POISON CENTER or doctor/physician. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for Octamethylcyclotetrasilazane
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