CAS No.: 78-10-4, Tetraethoxysilane, Teos, Dynasil a, Z-6697, Kbe -04, Silicate Tes 28, D1000, Silane Coupling Agent, Silane

Model NO.
HENGDA-Si28
Water Solubility
8.6 - 1 000 G/L
Flash Point
54 °c
Log Kow
-0.3 - 1.4
Vapour Pressure
20 - 7 910 PA
Explosiveness
Non-Explosive (100%)
Oxidising
Non Oxidising (100%)
Flammability
Flammable (100%)
Autoflammability / Self-Ignition
222 °c
Molecular Formula
C8h20o4si
Refractive Index
1.3788-1.3888
Boiling Point
167.3 °c
Melting / Freezing Point
-100 °c
Density
0.920~0.960
Molecular Weight
208.33
Chemical Name
Tetraethoxysilane
Transport Package
25kg, 200kg, 1000kg
Specification
Purity: 99% min
Trademark
HENGDA
Origin
China
HS Code
292090
Production Capacity
20000 T
Reference Price
Please contact us for quote
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Product Description

Product Description

HENGDA-Si28 is the ethyl ester of orthosilicic acid.

In the literature it is frequently also referred to under the name TEOS (tetraethoxysilane). HENGDA-Si28 is a colourless, low-viscosity liquid with SiO 2  content of 28.5%. Use requires acid- or alkali-catalysed hydrolysis. Since all 4 ethoxy groups are able to participate in this reaction, HENGDA-Si28 is regarded as tetrafunctional. Hydrolysis leads to silanol groups which, in a subsequent condensation reaction, form very stable siloxane bonds (-Si-O-Si-). Condensation starts before hydrolysis is complete. During storage of these hydrolysates condensation, continues until a gel is formed. The rate of gelation depends on the concentration of water.
HENGDA-Si28 is a ready source of silicic acid for many applications. Silicic acid in usually obtained by hydrolysis, or thermally by condensation at elevated temperature. The resulting silicic acid bonds well to many inorganic substrates and can be deposited in situ in a controlled manner. The surfaces of glass, metals, pigments, fillers and synthetic fibres can be coated with a very thin SiO 2  layer in order to improve chemical and thermal stability and mechanical properties.

Property:
 
Appearance Colorless transparent liquid
CAS 78-10-4
Purity ≥99%
Density(ρ20),g/cm 3 0.920~0.960
Molecular Weight 208.33
Refractive Index(n 25 D ) 1.3788-1.3888
Boiling point 167.3 °C
Flash point: 54 °C
Water solubility Reactivity

Equivalent Name

DYNASIL A
 Z-6697
KBE-04
SILICATE TES 28
TEOS

Applications:

1.Be hydrolyzed to form silicon dioxide (silica).

2.Crosslinkers in silicone rubber systems.

3.Drying agents in sealing compositions.

4.Inorganic binder for refractory fillers and pigments.

5.Coating material for pigments, fibers and other surfaces.

6.Chemical intermediate.


Reactivity

HENGDA-Si28 can react with water.

Packaging, storage and shelf life

HENGDA-Si28 is supplied in 25 kg,200 kg drums and 1000kg IBC containers.

HENGDA-Si28 must be stored with exclusion of moisture.

In the unopened container HENGDA-Si28 has a shelf life of min.12 months from delivery.
 
CAS No.: 78-10-4, Tetraethoxysilane, Teos, Dynasil a, Z-6697, Kbe-04, Silicate Tes 28, D1000, Silane Coupling Agent, Silane
CAS No.: 78-10-4, Tetraethoxysilane, Teos, Dynasil a, Z-6697, Kbe-04, Silicate Tes 28, D1000, Silane Coupling Agent, Silane
CAS No.: 78-10-4, Tetraethoxysilane, Teos, Dynasil a, Z-6697, Kbe-04, Silicate Tes 28, D1000, Silane Coupling Agent, Silane
 
CAS No.: 78-10-4, Tetraethoxysilane, Teos, Dynasil a, Z-6697, Kbe-04, Silicate Tes 28, D1000, Silane Coupling Agent, Silane
CAS No.: 78-10-4, Tetraethoxysilane, Teos, Dynasil a, Z-6697, Kbe-04, Silicate Tes 28, D1000, Silane Coupling Agent, Silane
CAS No.: 78-10-4, Tetraethoxysilane, Teos, Dynasil a, Z-6697, Kbe-04, Silicate Tes 28, D1000, Silane Coupling Agent, Silane
CAS No.: 78-10-4, Tetraethoxysilane, Teos, Dynasil a, Z-6697, Kbe-04, Silicate Tes 28, D1000, Silane Coupling Agent, Silane
CAS No.: 78-10-4, Tetraethoxysilane, Teos, Dynasil a, Z-6697, Kbe-04, Silicate Tes 28, D1000, Silane Coupling Agent, Silane
CAS No.: 78-10-4, Tetraethoxysilane, Teos, Dynasil a, Z-6697, Kbe-04, Silicate Tes 28, D1000, Silane Coupling Agent, Silane
CAS No.: 78-10-4, Tetraethoxysilane, Teos, Dynasil a, Z-6697, Kbe-04, Silicate Tes 28, D1000, Silane Coupling Agent, Silane
CAS No.: 78-10-4, Tetraethoxysilane, Teos, Dynasil a, Z-6697, Kbe-04, Silicate Tes 28, D1000, Silane Coupling Agent, Silane


 


 

 

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