A4707512
Hexamethyldisilane , 98% , 1450-14-2
Synonym(s):
Hexamethyldisilane
CAS NO.：1450-14-2
Empirical Formula: C6H18Si2
Molecular Weight: 146.38
MDL number: MFCD00008258
EINECS: 215-911-0
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 9-12 °C (lit.) |
| Boiling point: | 112-114 °C (lit.) |
| Density | 0.715 g/mL at 25 °C (lit.) |
| refractive index | n |
| Flash point: | 29 °F |
| storage temp. | Store at <= 20°C. |
| solubility | sol common organic solvents; insol H2O. |
| form | liquid |
| color | colorless |
| Specific Gravity | 0.729 |
| Water Solubility | Insoluble in water. Soluble in alcohol, ether and acetone. |
| Hydrolytic Sensitivity | 1: no significant reaction with aqueous systems |
| BRN | 1633463 |
| Stability: | Volatile |
| InChI | 1S/C6H18Si2/c1-7(2,3)8(4,5)6/h1-6H3 |
| InChIKey | NEXSMEBSBIABKL-UHFFFAOYSA-N |
| SMILES | C[Si](C)(C)[Si](C)(C)C |
| CAS DataBase Reference | 1450-14-2(CAS DataBase Reference) |
| NIST Chemistry Reference | Disilane, hexamethyl-(1450-14-2) |
| EPA Substance Registry System | Disilane, hexamethyl- (1450-14-2) |
Description and Uses
Hexamethyldisilane acts as a silylating reagent for allylic acetates, aryl halides and diketones. It is a source material for vapor deposition during silicon carbide growth. It is also used in electronic and semiconducter industries.
Safety
| Symbol(GHS) |   GHS02,GHS07 |
| Signal word | Danger |
| Hazard statements | H319-H317-H335-H413-H225 |
| Precautionary statements | P501-P273-P272-P240-P261-P210-P233-P243-P241-P242-P271-P264-P280-P370+P378-P337+P313-P305+P351+P338-P362+P364-P303+P361+P353-P333+P313-P304+P340+P312-P403+P233-P403+P235-P405 |
| target organs | Respiratory system |
| PPE | Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter |
| Hazard Codes | F,Xi |
| Risk Statements | 11-36/37-43-36/37/38 |
| Safety Statements | 16-23-45-9-33-26-7/9 |
| RIDADR | UN 1993 3/PG 2 |
| WGK Germany | 2 |
| RTECS | JM9170000 |
| TSCA | TSCA listed |
| HazardClass | 3 |
| PackingGroup | II |
| HS Code | 29310095 |
| Storage Class | 3 - Flammable liquids |
| Hazard Classifications | Eye Irrit. 2 Flam. Liq. 2 Skin Sens. 1 STOT SE 3 |
| Toxicity | LD50 orally in Rabbit: 2160 mg/kg LD50 dermal Rabbit 2160 mg/kg |
| REACH Registrations | Active |
| Limited Quantities | 1.0 L (0.3 gallon) (liquid) |
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml) |
