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Cas Database |
| Name |
Ethyltrichlorosilane |
EINECS | 204-072-6 |
| CAS No. | 115-21-9 | Density | 1.244 g/cm3 |
| PSA | 0.00000 | LogP | 2.66160 |
| Solubility | N/A | Melting Point |
-106 °C(lit.) |
| Formula | C2H5Cl3Si | Boiling Point | 99.977 °C at 760 mmHg |
| Molecular Weight | 163.506 | Flash Point | 19.552 °C |
| Transport Information | UN 1196 3/PG 2 | Appearance | clear colorless liquid |
| Safety | 26-28-36/37/39-45 | Risk Codes | 11-14-22-26-34 |
| Molecular Structure |
|
Hazard Symbols |
 F，  T+
|
| Synonyms |
Ethylsilicon trichloride;LS 120;SIE 4901.0;TSL 8226;Trichloroethylsilane;Trichloroethylsilicon; |
Article Data | 90 |
Ethyltrichlorosilane Chemical Properties
IUPAC Name: Trichloro(ethyl)silane
The MF of Ethyltrichlorosilane (CAS NO.115-21-9) is C2H5Cl3Si.
The MW of Ethyltrichlorosilane (CAS NO.115-21-9) is 163.51.
Synonyms of Ethyltrichlorosilane (CAS NO.115-21-9): Ethyl silicon trichloride ; Ethyl(trichloro)-silan ; Ethylsilicontrichloride ; Ethyltrichloro-silan
Product Categories: Functional Materials;Si (Classes of Silicon Compounds);Si-Cl Compounds;Silane Coupling Agents;Silane Coupling Agents (Intermediates);Trichlorosilanes
Apperance: clear colorless liquid
Index of Refraction: 1.439
EINECS: 204-072-6
Density: 1.243 g/ml
Flash Point: 19.6 °C
Boiling Point: 100 °C
Melting Point: -106 °C
Ethyltrichlorosilane Uses
Ethyltrichlorosilane (CAS NO.115-21-9) is used as intermediate for manufacturing silicone.
Ethyltrichlorosilane Toxicity Data With Reference
| 1. | skn-rbt 500 mg/24H MLD | 85JCAE Prehled Prumyslove Toxikologie; Organicke Latky Marhold, J.,Prague, Czechoslovakia.: Avicenum,1986,1220. | ||
| 2. | eye-rbt 250 µg/24H SEV | 85JCAE Prehled Prumyslove Toxikologie; Organicke Latky Marhold, J.,Prague, Czechoslovakia.: Avicenum,1986,1220. | ||
| 3. | ihl-rat LCLo:500 ppm/4H | JIHTAB Journal of Industrial Hygiene and Toxicology. 31 (1949),343. | ||
| 4. | orl-rat LD50:1330 mg/kg | JIHTAB Journal of Industrial Hygiene and Toxicology. 31 (1949),60. | ||
| 5. | ipr-rat LDLo:30 mg/kg | JIHTAB Journal of Industrial Hygiene and Toxicology. 30 (1948),332. | ||
| 6. | ihl-mus LC50:300 µg/m3/2H | TPKVAL Toksikologiya Novykh Promyshlennykh Khimicheskikh Veshchestv. Toxicology of New Industrial Chemical Sciences.(3),(1961),23. |
Ethyltrichlorosilane Consensus Reports
EPA Extremely Hazardous Substances List. Reported in EPA TSCA Inventory.
Ethyltrichlorosilane Safety Profile
Poison by inhalation and intraperitoneal routes. Moderately toxic by ingestion. A skin and severe eye irritant. A very dangerous fire hazard when exposed to heat, flame, or oxidizers; will react with water or steam to produce heat and toxic and corrosive fumes; can react vigorously with oxidizing materials. To fight fire, use CO2, dry chemical. When heated to decomposition it emits highly toxic fumes of Cl− and phosgene. See also CHLOROSILANES.Safety information of Ethyltrichlorosilane (CAS NO.115-21-9):
Hazard Codes 
F,
T+
Risk Statements
11 Highly Flammable
14 Reacts violently with water
22 Harmful if swallowed
26 Very Toxic by inhalation
34 Causes burns
Safety Statements
26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
28 After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer)
36/37/39 Wear suitable protective clothing, gloves and eye/face protection
45 In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)
RIDADR UN 1196 3/PG 2
WGK Germany 1
RTECS VV4200000
F 19-21
TSCA Yes
HazardClass 3.1
PackingGroup II
Ethyltrichlorosilane Standards and Recommendations
DOT Classification: 3; Label: Flammable Liquid, Corrosive
Ethyltrichlorosilane Specification
Chlorosilanes, such as Ethyltrichlorosilane, are compounds in which silicon is bonded to from one to four chlorine atoms with other bonds to hydrogen and/or alkyl groups. Chlorosilanes react with water, moist air, or steam to produce heat and toxic, corrosive fumes of hydrogen chloride. They may also produce flammable gaseous H2. They can serve as chlorination agents. Chlorosilanes react vigorously with both organic and inorganic acids and with bases to generate toxic or flammable gases.
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