ChemicalBook > CAS DataBase List > Ethyltrichlorosilane

Ethyltrichlorosilane

Product Name: Ethyltrichlorosilane
CAS No.: 115-21-9
Chemical Name: Ethyltrichlorosilane
Synonyms: CE6350;C2H5SiCl3;trichloroethyl-silan;ethyltrichloro-silan;TRICHLOROETHYLSILANE;ETHYLTRICHLOROSILANE;trichloroethylsilicon;trichloroethyl-silican;ethyl(trichloro)-silan;TRICHLOROETHYLSILICANE
CBNumber: CB1852886
Molecular Formula: C2H5Cl3Si
Formula Weight: 163.51
MOL File: 115-21-9.mol

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Ethyltrichlorosilane Property

Melting point:: −106 °C(lit.)
Boiling point:: 99 °C(lit.)
Density: 1.238 g/mL at 25 °C(lit.)
vapor pressure: 36 hPa (20 °C)
refractive index: n20/D 1.425(lit.)
Flash point:: 57 °F
storage temp.: Store below +30°C.
solubility: soluble in Ether,Benzene
form: liquid
Specific Gravity: 1.238
color: colorless
explosive limit: 2.68%(V)
Hydrolytic Sensitivity: 8: reacts rapidly with moisture, water, protic solvents
Sensitive: moisture sensitive
CAS DataBase Reference: 115-21-9(CAS DataBase Reference)
NIST Chemistry Reference: Ethyltrichlorosilane(115-21-9)
EPA Substance Registry System: Trichloroethylsilane (115-21-9)

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Safety

Hazard Codes: F,T+,C
Risk Statements: 11-14-22-26-34-37-35-20/22
Safety Statements: 26-28-36/37/39-45
RIDADR: UN 1196 3/PG 2
WGK Germany: 1
RTECS: VV4200000
F: 19-21
Autoignition Temperature: 385 °C
TSCA: Yes
HS Code: 2931 90 00
HazardClass: 3.1
PackingGroup: II
Hazardous Substances Data: 115-21-9(Hazardous Substances Data)
Toxicity: LD50 orally in Rabbit: 1330 mg/kg

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H225Highly Flammable liquid and vapour

H302Harmful if swallowed

H314Causes severe skin burns and eye damage

H331Toxic if inhaled

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 8.21667
Product name: Trichloroethylsilane
Purity: for synthesis
Packaging: 25mL
Price: $163
Updated: 2025/07/31

TCI Chemical

Product number: E0188
Product name: Ethyltrichlorosilane
Purity: >98.0%(GC)(T)
Packaging: 25g
Price: $28
Updated: 2025/07/31

TCI Chemical

Product number: E0188
Product name: Ethyltrichlorosilane
Purity: >98.0%(GC)(T)
Packaging: 500g
Price: $243
Updated: 2023/06/20

Strem Chemicals

Product number: 93-1411
Product name: Ethyltrichlorosilane, 98%
Packaging: 100g
Price: $95
Updated: 2024/03/01

Strem Chemicals

Product number: 93-1411
Product name: Ethyltrichlorosilane, 98%
Packaging: 500g
Price: $378
Updated: 2024/03/01

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Ethyltrichlorosilane Chemical Properties,Usage,Production

Chemical Properties

Ethyl trichlorosilane is a clear colorless liquid with an irritating odor.

Uses

Intermediate for silicones.

Production Methods

Manufactured by reaction of ethylene and trichlorosilane in the presence of a peroxide catalyst.

General Description

Ethyltrichlorosilane appears as a colorless fuming liquid with a pungent odor. Flash point 57 °F. Boiling point 211.1 °F (99.5 °C). Vapor and liquid may cause burns. Denser than water. Vapors heavier than air.

Reactivity Profile

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.

Hazard

Flammable, dangerous fire risk, may form explosive mixture with air. A strong irritant.

Health Hazard

Vapor and liquid cause burns. Do not inhale or expose eyes to vapor. Vapor may damage eyes even if not immediately painful.

Fire Hazard

Trichloroethylsilane may form explosive mixtures with air. Its vapors are heavier than air and may travel a considerable distance to a source of ignition and flash back. Form toxic and corrosive fumes including phosgene when heated to decomposition and hydrochloric acid in presence of water. Will react with water or steam to produce heat and toxic and corrosive fumes. Will react vigorously with oxidizing materials. Unstable, avoid decomposing heat.

Flammability and Explosibility

Highly flammable

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 decom position it emits highly toxic fumes of Cl and phosgene. See also CHLOROSILANES.

Potential Exposure

Used in the manufacture of silicone polymers.

Shipping

UN1196 Ethyltrichlorosilane, Hazard Class: 3; Labels: 3-Flammable liquid, 8-Corrosive material.

Incompatibilities

A strong reducing agent. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, and epoxides. Chlorosilanes react vigorously with bases and both organic and inorganic acids generating toxic and/ or flammable gases. Chlorosilanes react with water, moist air, or steam to produce heat and toxic, corrosive fumes of hydrogen chloride. They may also produce flammable gaseous hydrogen. Attacks metals in the presence of moisture.

Ethyltrichlorosilane Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from Ethyltrichlorosilane manufacturers

Career Henan Chemical Co

Product: Ethyltrichlorosilane 115-21-9
Price: US $9.80/KG
Min. Order: 1g
Purity: ≥99%
Supply Ability: 100kg
Release date: 2020-01-08

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115-21-9

C2H5Cl3Si

Cl3C2H5Si

Trichlorosilanes

Silane Coupling Agents

Si-Cl Compounds

Si (Classes of Silicon Compounds)

Silane Coupling Agents (Intermediates)

Protecting and Derivatizing Reagents

Protection and Derivatization

Silicon-Based

Synthetic Reagents

organosilicon compounds

Functional Materials

Si (Classes of Silicon Compounds)

Si-Cl Compounds

Silane Coupling Agents

Silane Coupling Agents (Intermediates)

Trichlorosilanes