描述 四乙氧基硅烷(TEOS CAS 78-10-4)快速详细信息 化学名称:四乙氧基 硅烷/ TEOS CAS号:78-10-4 分子式:C8H20O4Si 分子量:208.33 化学结构: 外观:透明液体 含量:≥98 四乙氧基硅烷(TEOS CAS 78-10-4)典型性能 项目 标准 外观 无色透明液体 含量% ≥98 25°C时的比重,g/cm3 0.929-0.939 折射率, ND20 1.3786-1.3868 游离氯,ppm ≤10 SiO2, % 28-30 水分散 合格 四乙氧基硅烷(TEOS CAS 78-10-4) 用途 该产品主要用于制造耐化学性和耐热性涂料,有机硅溶剂和精密铸造的粘合剂。 当完全水解时,它会产生微小的氧化硅粉末,可用于制造荧光粉。应用于天然石材或其他建筑材料,它形成硅胶状粘合剂(SiO2),增加基材强度。用于油漆和其他表面改性应用的有机硅树脂的聚合。它是溶胶凝胶工艺的中间体。此外,它还可以提高其他树脂的性能,也是制造硅大分子化合物的材料。 四乙氧基硅烷(TEOS CAS 78-10-4) 包装和运输包装:25KG,200KG桶,IBC和 ISO罐四乙氧基硅烷(TEOS CAS 78-10-4)储存 密封并储存在阴凉通风处。远离火和水。

Tetraethoxysilane (TEOS) CAS 78-10-4

Tetraethoxysilane (TEOS), Promotion Season Now in Store and Free Sample for Testing with Factory Price

Chemical Name: Tetraethoxysilane (TEOS)
CAS No.: 78-10-4
Molecular Fomula: C8H20O4Si
Molecular weight: 208.33
Appearance: Colourless, transparent liquid with a slight odour.

Tetraethoxysilane (TEOS) CAS 78-10-4

Description of Tetraethoxysilane (TEOS)

Tetraethyl orthosilicate is the chemical compound with the formula Si(OC2H5)4. Often abbreviated TEOS, it is a colorless liquid that degrades in water. TEOS is the ethyl ether of orthosilicic acid, Si(OH)4. It is a prototypical alkoxide.
TEOS is a tetrahedral molecule. Like its many analogues, TEOS is prepared by alcoholysis of silicon tetrachloride:; SiCl4 + 4 EtOH → Si(OEt)4 + 4 HCl; where Et = C2H5.

Basic Info of Tetraethoxysilane (TEOS)

Chemical Name

Tetraethyl orthosilicate

Synonyms

ethyl orthosilicate;Silicic acid (H4SiO4), tetraethyl ester;tetraethyl ortosilicate;Silester;tetra-ethyl orthosilicate;Expand

CAS No.

78-10-4

Molecular Formula

C8H20O4Si

Molecular Weight

208.32700

PSA

36.92000

LogP

1.56800

Safety Info

RTECS

VV9450000

Hazard Class

3

Safety Statements

16-36/37/39

HS Code

2920909090

WGK Germany

1

Packing Group

III

RIDADR

UN 1292 3/PG 3

Risk Statements

R10; R20; R36/37

Hazard Codes

Xn

Signal Word

Warning

Symbol

GHS02, GHS07

Caution Statement

P210; P261; P280; P304 + P340 + P312; P337 + P313; P403 + P235

Hazard Declaration

H226; H319; H332; H335

Properties

Appearance & Physical State

clear colorless liquid with a faint odor

Density

0.934

Boiling Point

166-169ºC

Melting Point

-77ºC

Freezing Point

-77℃

Flash Point

45ºC

Refractive Index

n20/D 1.382(lit.)

Water Solubility

Hydrolysis

Stability

Stable. Flammable. Incompatible with strong oxidizing agents, water, alkalies, mineral acids.

Storage Condition

Flammables area

Vapor Density

7.2 (vs air)

Vapor Pressure

<1 mm Hg ( 20 °C)

Numbering system

UNII

42064KRE49

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What is Tetraethoxysilane (TEOS)?

 With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is Tetraethoxysilane (TEOS) which has developed particularly rapidly in recent years. Do you know about Tetraethoxysilane (TEOS)?

 

The official answer: Tetraethyl orthosilicate, alias Ethyl silicate.

What’s the application of Tetraethoxysilane (TEOS)?

  1. Used as electrical insulation material, paint, optical glass treatment agent. Also used in organic synthesis.
  2. Used in the manufacture of chemical-resistant coatings, heat-resistant coatings, silicone solvents and precision casting adhesives.
  3. Used as heat-resistant coatings, chemical-resistant coatings, organic synthesis intermediates.

Conclusion

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Keywords of Tetraethoxysilane (TEOS)

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