Hexamethyldisilane
Hexamethyldisilane
CAS: 1450-14-2
Molecular Formula: C6H18Si2
Hexamethyldisilane - Names and Identifiers
| Name | Hexamethyldisilane |
| Synonyms | HMD CH7280 (CH3)6Si2 DISILANE M6 Hexamethyldisilane HEXAMETHYLDISILANE Hecamethyldisilane disilane,hexamethyl- Hexamethyl disilylamine 1,1,1,2,2,2-Hexamethyldisilane |
| CAS | 1450-14-2 |
| EINECS | 215-911-0 |
| InChI | InChI=1/C6H18Si2/c1-7(2,3)8(4,5)6/h1-6H3 |
| InChIKey | NEXSMEBSBIABKL-UHFFFAOYSA-N |
Hexamethyldisilane - Physico-chemical Properties
| Molecular Formula | C6H18Si2 |
| Molar Mass | 146.38 |
| Density | 0.715 g/mL at 25 °C (lit.) |
| Melting Point | 9-12 °C (lit.) |
| Boling Point | 112-114 °C (lit.) |
| Flash Point | 29°F |
| Water Solubility | Insoluble in water. Soluble in alcohol, ether and acetone. |
| Solubility | sol common organic solvents; insol H2O. |
| Vapor Presure | 24.5mmHg at 25°C |
| Appearance | liquid |
| Specific Gravity | 0.729 |
| Color | colorless |
| BRN | 1633463 |
| Storage Condition | Store at |
| Stability | Volatile |
| Sensitive | 1: no significant reaction with aqueous systems |
| Refractive Index | n20/D 1.422(lit.) |
| Physical and Chemical Properties | Properties: colorless transparent liquid, pleasant fruit odor |
| Use | Used as a raw material for the synthesis of trimethylsilyl lithium, trimethylsilyl sodium, trimethylsilyl potassium; Used in pharmaceutical synthesis, can be used as a termination agent of polysiloxane chain |
Hexamethyldisilane - Risk and Safety
| Risk Codes | R11 - Highly Flammable R36/37 - Irritating to eyes and respiratory system. R43 - May cause sensitization by skin contact R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S16 - Keep away from sources of ignition. S23 - Do not breathe vapour. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S9 - Keep container in a well-ventilated place. S33 - Take precautionary measures against static discharges. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S7/9 - |
| UN IDs | UN 1993 3/PG 2 |
| WGK Germany | 2 |
| RTECS | JM9170000 |
| TSCA | Yes |
| HS Code | 29310095 |
| Hazard Class | 3 |
| Packing Group | II |
| Toxicity | LD50 orally in Rabbit: 2160 mg/kg LD50 dermal Rabbit 2160 mg/kg |
Hexamethyldisilane - Reference Information
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | hexamethyldisilane sodium trimethylsilane, potassium trimethylsilane and lithium trimethylsilane can be synthesized. Iodotrimethylsilane was prepared. As an important protective agent of trimethylsilane anion reagent , it can be used in the synthesis of antibiotics such as ceftazidime. used as a source material for vapor deposition during silicon carbide growth; A silylating agent for Allyl acetate, aryl halides, and diketones. used as raw materials for the synthesis of trimethylsilyl lithium, trimethylsilyl sodium, trimethylsilyl potassium used in pharmaceutical synthesis, can be used as a termination agent of polysiloxane chain. |
Last Update：2024-04-09 02:00:04
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