CasNo.78-10-4,Tetraethyl orthosilicate 78-10-4 large in supply,(78-10-4) Suppliers

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Purity: 99.5%
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Keywords

78-10-4 Tetraethyl orthosilicate ETHYL ORTHOSILICATE

Quick Details

Appearance:Colorless, flammable liquid
Application:Used as Insulating materials in electronic industry, coatings, optical glass treatment agents, coagulants, used for organic synthesis, used as solvents for the preparation of organosilicon.
PackAge:drums
ProductionCapacity:100|Metric Ton|Month
Storage:dry and cool
Transportation:air, courier and sea

Superiority:

Synonyms: SILICON TETRAETHOXIDE;TEOS;TETRAETHOXYSILANE;TETRAETHYL SILICATE;TETRAETHYL ORTHOSILICATE;ORTHOSILICIC ACID TETRAETHYL ESTER;ETHYL-O-SILICATE;ETHYL ORTHOSILICATE
CAS: 78-10-4
MF: C8H20O4Si
MW: 208.33
EINECS: 201-083-8
Product Categories: Si (Classes of Silicon Compounds);Si-O Compounds;Tetraalkoxysilanes;Crosslinkers;Crosslinking Agents;Orthosilicate;organosilicon compounds;14: Silicon;CVD and ALD Precursors Packaged for Deposition Systems;Materials Science;Micro &;Micro/NanoElectronics;Nanoelectronics;New Products for Materials Research and Engineering;Vapor Deposition Precursors;inorganic binder for refactory fillers;silane
Mol File: 78-10-4.mol
Tetraethyl orthosilicate Structure
Tetraethyl orthosilicate Chemical Properties
Melting point -77 °C
Boiling point 168 °C(lit.)
density 0.933 g/mL at 20 °C(lit.)
vapor density 7.2 (vs air)
vapor pressure <1 mm Hg ( 20 °C)
refractive index n20/D 1.382(lit.)
Fp 116 °F
storage temp. Flammables area
solubility Soluble in ethanol and 2-propanol.
Water Solubility Hydrolysis
FreezingPoint -77℃
Sensitive Moisture Sensitive
Merck 14,3851
BRN 1422225
Stability: Stable. Flammable. Incompatible with strong oxidizing agents, water, alkalies, mineral acids.
CAS DataBase Reference 78-10-4(CAS DataBase Reference)
NIST Chemistry Reference Silicic acid (H4sio4), tetraethyl ester(78-10-4)
EPA Substance Registry System Silicic acid (H4SiO4), tetraethyl ester(78-10-4)
Safety Information
Hazard Codes Xn
Risk Statements 10-20-36/37-36/37/38
Safety Statements 16-36/37/39-26
RIDADR UN 1292 3/PG 3
WGK Germany 1
RTECS VV9450000
TSCA Yes
HazardClass 3
PackingGroup III
Hazardous Substances Data 78-10-4(Hazardous Substances Data)

Details:

Uses 1. Tetraethyl orthosilicate is Used as insulating materials in electronic industry, also used for optical glass processing and used as coagulants.
2. For precision casting, as a sand binder. Metal surface treated by ethyl silicate vapor can be anticorrosion and waterproof. Ethyl silicate can be used to bleed on the metal surface of the silicon, processing optical glass can improve its light transmittance. Fine silica powder produced by complete hydrolysis can be used to manufacture the phosphor. Ethyl silicate is raw material for silicone oil. Ethyl silicate can also be used to manufacture heat-resistant, chemical-resistant coatings. In Japan, 90% of ethyl silicate is used as an anti-corrosion coating (zinc-rich paint) base material.
3. Tetraethyl orthosilicate is Mainly used in chemical-resistant coatings and heat-resistant coatings, used as silicone solvent and precision-made binder. Fine silica powder produced after complete hydrolysis, used for the manufacture of phosphor, also used as a chemical reagent.
4. Tetraethoxysilane is mainly used in optical glass, chemical resistant coatings and heat-resistant coatings and adhesives, modification for anti-corrosion coating, used as crosslinking agent, a binder, a dehydrating agent, used for manufacturing catalyst skeleton, high purity ultrafine silica.
5. Used as Insulating materials in electronic industry, coatings, optical glass treatment agents, coagulants, used for organic synthesis, used as solvents for the preparation of organosilicon.
Production method It is produced by esterification of silicon tetrachloride with ethanol at normal temperature and pressure.
Category Flammable liquids.
Toxicity grading Poisoning
Acute toxicity Oral-rat LD50: 6270 mg/kg, Inhalation-rat LCL0: 85 g/cubic meter.
Stimulus data Skin-rabbit 500 mg/24 hours moderate. Eyes-rabbit 500 mg/24 hours mild.
Explosive hazardous characteristics Can be explosive mixed with air.
Flammability hazard characteristics Combustible, fire toxic fumes of silicon oxide emissions.
Storage Characteristics Treasury ventilation low-temperature drying, stored separately from oxidants.
Extinguishing agent Foam, powder, carbon dioxide, sand.
Occupational standards TWA 85 mg/m³, STEL 170 mg/m³.
Chemical Properties Colorless transparent liquid
Uses Commonly used as a precursor to prepare xerogel1,2
Uses Tetraethyl Orthosilicate is used in the preparation of antidreflective coatings on silicate glass via silicon dioxide. Crosslinking reagent.
General Description A clear colorless liquid with a faint odor. Flash point 125°F. Less dense than water. Vapors are heavier than air.