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Tetraethyl orthosilicate

BGC Id:940037682622
CAS No:78-10-4
Synonyms:silikanl ; (c2h5o)4si ; silester ; dynasila ; dynasil a ; es 28 ester ; es28 ; teos ; es28(ester) ; es100
Molecular Formula:C8H20O4Si
Molecular Weight:208.33
EINECS:201-083-8
Structural Formula

The most competitive supplier in 2025

The following 17 notable providers have been checked and can be recommended.
Chemical-Suppliers
Sancai Industry
Characteristics Cloroless transparent liquid
Colour Value (Pt-co) <30
Content > 99%
Silica content, by wt as SiO2 28%
Aci
>>more
Chemical-Suppliers
H&Z Industry
Types: 28% 32% 40% | Package: 200L | Appearance: Cloroless transparent liquid | Colour Value (Pt-co): <30 | Content: > 99% | Silica content, by wt as SiO2: 28% | Acidity, max. (as HCI): <0.01 | Specific Gravity at 20℃: 0.929-0.936

Chemical-Suppliers
Leap Chem
Molecular Formula: C8H20O4Si Molecular Weight: 208.33 Hazard Symbols: Xn UN Number: UN 1292 3/PG 3 WGKGermany: 1 PackingGroup: III HS Code: 2920 90 70
Chemical-Suppliers
Getchem
Synonyms SILICON TETRAETHOXIDE; TEOS; TETRAETHOXYSILANE; TETRAETHYL SILICATE; TETRAETHYL ORTHOSILICATE; ORTHOSILICIC ACID TETRAETHYL ESTER; ETHYL-O-SILICATE; ETHYL ORTHOSILICATE
Package 180kg/drum
Supply capacity 5000mt per year
>>more
Chemical-Suppliers
BuGuCh & Partners
Product name:Tetraethyl orthosilicate Synonyms:SILICON TETRAETHOXIDE;TEOS;TETRAETHOXYSILANE;TETRAETHYL SILICATE; TETRAETHYL ORTHOSILICATE;ORTHOSILICIC ACID TETRAETHYL ESTER;ETHYL-O-SILICATE;ETHYL ORTHOSILICATE CAS:78-10-4 Formula:C8H20O4Si Molecular weight:208.33 Package:180kg/drum Supply capacity:5000mt per year Melting point:-77 °C Boiling point:168 °C(lit.) Density:0.94 Vapor density:7.2 (vs air) Vapor pressure:<1 mm Hg ( 20 °C) Refractive index:n20/D 1.382(lit.) flash point:116 °F Storage:Flammables area Water solubility:Hydrolysis Freezing point:-77°C Sensitivity:Moistu >>more

The last intensive check and update was carried out on 2025/09/03.

Identify

Synonyms:
silikanl ; (c2h5o)4si ; silester ; dynasila ; dynasil a ; es 28 ester ; es28 ; teos ; es28(ester) ; es100
CAS:
78-10-4
EINECS:
201-083-8
Molecular Formula:
C8H20O4Si
MDL:
MFCD00009062
SMILES:
B(C1=C(C(=C(C=C1)Cl)Cl)Cl)(O)O

Properties

Molecular Weight:
208.33 g·mol−1
Density:
0.933 g/mL at 20 °C(lit.)
Melting point:
-77 °C
Boiling point:
168 °C(lit.)
Flash point:
116 ºF
download Download Molfile

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OPQ Chemical Co., Ltd

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País: P.R.China
Teléfono: +86-17615852982
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País: USA
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Fax: +1 425 5299207

Sancai Industry Co.,Ltd.

Tipo de compañía: Leading producer
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Shandong Minglang Chemical Co., Ltd

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Teléfono: +86-13220566916
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H&Z Industry Co.,Ltd

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Hangzhou Keying Chem Co., Ltd.

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Fax: +86-571-85378913
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Lori Industry Co., Ltd

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Hangzhou Meite Industry Co., Ltd (Hangzhou Meite Chemical Co., Ltd)

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Dayang Chem (Hangzhou) Co.,Ltd.

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País: P.R.China
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AK Scientific, Inc.

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Leap Chem Co., Ltd

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Haihang Industry Co., Ltd.

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BuGuCh & Partners

Tipo de compañía: Producer
País: Germany
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Safety Information

Hazard Classes:
3
Risk Codes:
10-20-36/37-36/37/38 (R)
Safety Codes:
16-36/37/39-26 (S)
WGK Germany:
1
RID / ADR:
UN 1292 3 / PG 3
RTECS:
VV9450000
Storage temperature:
Flammables area

What other providers are available for CAS 78-10-4?

In addition to the providers presented here for Tetraethyl orthosilicate with the CAS number 78-10-4, there are other 45 providers with slightly different product names available for this CAS number.

Senzhuo Industry Co.,Ltd
Zhangjiagang Fortune Chemical Co., Ltd | Shanghai Mintchem Development Co., Ltd. | Simagchem Corporation | Shandong SanYoung Industry Co., Ltd | Xiamen Equation Chemical Co.,Ltd +6 additional providers that we know from the past
Shanghai Mintchem Development Co., Ltd. | Xingrui Industry Co., Limited | Zehao Industry Co., Ltd. | Carbone Scientific Co., Ltd. | Xiamen Equation Chemical Co.,Ltd | BuGuCh & Partners +15 additional providers that we know from the past
+2 additional providers that we know from the past
+1 additional providers that we know from the past
+1 additional providers that we know from the past
+2 additional providers that we know from the past




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