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CAS RN: 107-46-0 | 產品號碼: H0091
Hexamethyldisiloxane
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| 產品號碼 | H0091 |
| 純度/分析方法 | >98.0%(GC) |
| 分子式 / 分子量 | C__6H__1__8OSi__2 = 162.38 |
| 外觀與形狀（20°C） | Liquid |
| 儲存條件 | Room Temperature (Recommended in a cool and dark place, <15°C) |
| 儲存在惰性氣體下 | Store under inert gas |
| 應避免的情況 | Moisture Sensitive |
| CAS RN | 107-46-0 |
| Reaxys-RN | 1736258 |
| PubChem Substance ID | 87570539 |
| SDBS (AIST Spectral DB) | 5566 |
| MDL編號 | MFCD00008265 |
產品規格
| Appearance | Colorless to Almost colorless clear liquid |
| Purity(GC) | min. 98.0 % |
性質
| 沸點 | 100 °C |
| flp | -6 °C |
| 比重 | 0.76 |
| 折射率 | 1.38 |
| 水溶性 | Insoluble |
| 溶解性（可溶於） | Alcohol |
GHS
| 圖形表示 |
|
| 信號詞 | Danger |
| 危險性說明 | H400 : Very toxic to aquatic life. H411 : Toxic to aquatic life with long lasting effects. H225 : Highly flammable liquid and vapor. |
| 防範說明 | P501 : Dispose of contents/ container to an approved waste disposal plant. P273 : Avoid release to the environment. P240 : Ground and bond container and receiving equipment. P210 : Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P233 : Keep container tightly closed. P243 : Take action to prevent static discharges. P241 : Use explosion-proof electrical/ ventilating/ lighting/ equipment. P242 : Use non-sparking tools. P280 : Wear protective gloves/ eye protection/ face protection. P370 + P378 : In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish. P391 : Collect spillage. P303 + P361 + P353 : IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water. P403 + P235 : Store in a well-ventilated place. Keep cool. |
相關法規
| RTECS # | JM9237000 |
運輸資料
| UN編號 | UN1993 |
| 類別 | 3 |
| 包裝類別 | II |
| HS編碼* | 2931.90-000 |
Application
Trimethylsilylating Reagent
Typical Procedure (Entry 1):
In a 100 mL flask equipped with a Dean-Stark trap are placed hexanoic acid (17.5 g, 151 mmol), hexamethyldisiloxane (48.7 g, 301 mmol), sulfuric acid (1.5 g, 15 mmol), and toluene (40 mL). The flask is then heated to gentle reflux, and the course of the reaction is monitored by GLC. After 72 h, the reaction mixture is distilled under reduced pressure to give trimethylsilyl hexanoate (20.2 g, Y. 71%) as a colorless liquid.
In a 100 mL flask equipped with a Dean-Stark trap are placed hexanoic acid (17.5 g, 151 mmol), hexamethyldisiloxane (48.7 g, 301 mmol), sulfuric acid (1.5 g, 15 mmol), and toluene (40 mL). The flask is then heated to gentle reflux, and the course of the reaction is monitored by GLC. After 72 h, the reaction mixture is distilled under reduced pressure to give trimethylsilyl hexanoate (20.2 g, Y. 71%) as a colorless liquid.
References
- 1) A facile silylation of carboxylic acids with hexamethyldisiloxane
- 2) A new preparation of trimethylsilyl ethers
考研文獻
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