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682-01-9

Basic Information
CAS No.: 682-01-9
Name: Tetrapropoxysilane
Article Data: 31
Molecular Structure:
Molecular Structure of 682-01-9 (Tetrapropoxysilane)
Formula: C12H28O4Si
Molecular Weight: 264.437
Synonyms: Propylsilicate ((PrO)4Si) (7CI);Propyl silicate (6CI);Dynasil P;Propylorthosilicate;Silane, tetrapropoxy-;Silicon orthopropoxide;Silicontetrapropoxide;Tetra-n-propoxysilane;Tetrapropoxysilane;Tetrapropylorthosilicate;Tetrapropyl silicate;
EINECS: 211-659-0
Density: 0.918 g/cm3
Melting Point: <-80°C
Boiling Point: 224.3 °C at 760 mmHg
Flash Point: 95 °C
Solubility: 78mg/L at 20℃
Appearance: Colorless transparent liquid
Hazard Symbols: IrritantXi
Risk Codes: 36/37/38
Safety: 26-36-37/39
Transport Information: UN 1993
PSA: 36.92000
LogP: 3.12840
Synthetic route
71-23-8

propan-1-ol

10026-04-7, 53609-55-5

tetrachlorosilane

682-01-9

tetrapropoxysilane

Conditions
ConditionsYield
In not given81.5%
71-23-8

propan-1-ol

682-01-9

tetrapropoxysilane

Conditions
ConditionsYield
With silica gel; potassium hydroxide at 210℃; under 11251.1 Torr; for 6h; Autoclave; Inert atmosphere;78.7%
With tetrachlorosilane
With tetrachlorosilane
71-23-8

propan-1-ol

7440-21-3

monosilane

682-01-9

tetrapropoxysilane

Conditions
ConditionsYield
In not given SiH4 and n-propanol in presence of C3H7OLi;;77%
In not given SiH4 and n-propanol in presence of C3H7OLi;;77%
71-23-8

propan-1-ol

A

682-01-9

tetrapropoxysilane

B

6544-00-9

Hexakis(n-propoxy)-disiloxan

Conditions
ConditionsYield
With copper(l) chloride; silicon at 250℃; for 3h; Autoclave;A 66%
B n/a
With tetrachlorosilane
122891-74-1

(C3H7O)3Si(NHNHC6H5)

7550-45-0

titanium tetrachloride

A

122926-59-4

(C3H7O)2Si(NHNHC6H5)2(TiCl4)2

B

682-01-9

tetrapropoxysilane

Conditions
ConditionsYield
In Petroleum ether dropwise addn. of soln. of TiCl4 in petroleum ether (40-60°C) to soln. of 1-trialkoxysilyl 2-phenylhydrazine (equimolar amts., 0 to -10°C, under dry nitrogen), ppt. filtered in a cold atm. of dry N2; washed, dried under reduced pressure; elem. anal.;A 65%
B n/a
122891-74-1

(C3H7O)3Si(NHNHC6H5)

7646-78-8

tin(IV) chloride

A

122926-60-7

(C3H7O)2Si(NHNHC6H5)2(SnCl4)2

B

682-01-9

tetrapropoxysilane

Conditions
ConditionsYield
In Petroleum ether dropwise addn. of soln. of SnCl4 in petroleum ether (40-60°C) to soln. of 1-trialkoxysilyl 2-phenylhydrazine (equimolar amts., 0 to -10°C, under dry nitrogen), ppt. filtered in a cold atm. of dry N2; washed, dried under reduced pressure; elem. anal.;A 60%
B n/a
71-23-8

propan-1-ol

78-10-4

tetraethoxy orthosilicate

682-01-9

tetrapropoxysilane

Conditions
ConditionsYield
With titanium(IV) isopropylate
71-23-8

propan-1-ol

681-84-5

tetramethylorthosilicate

682-01-9

tetrapropoxysilane

Conditions
ConditionsYield
With sodium bei der Destillation;
In not given Si(OCH3)4 and n-propanol in presence of Na;;
In not given Si(OCH3)4 and n-propanol in presence of Na;;
71-23-8

propan-1-ol

A

682-01-9

tetrapropoxysilane

B

6485-85-4

tripropoxysilane

Conditions
ConditionsYield
With trichlorosilane; benzene
7446-70-0

aluminium trichloride

6485-85-4

tripropoxysilane

682-01-9

tetrapropoxysilane

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 CAS 682-01-9

  • Casno:

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    Tetrapropoxysilane CAS 682-01-9 CAS 682-01-9

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    Name: Tetrapropoxysilane CAS: 682-01-9 Molecular Formula: C12H28O4Si Molecular Weight: 264.434 Application:Fine chemical

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Specification

The systematic name of Silicic acid (H4SiO4),tetrapropyl ester is tetrapropyl orthosilicate. With the CAS registry number 682-01-9, it is also named as Tetrapropoxysilane. The product's categories are Silicate; Si (Classes of Silicon Compounds); Si-O Compounds; Tetraalkoxysilanes; Crosslinkers; Crosslinking Agents; Orthosilicate. It is colorless transparent liquid which is sensitive to moisture. Additionally, this chemical should be sealed in the container which is filled with inert gas and stored in the cool and dry place.

The other characteristics of this product can be summarized as: (1)ACD/LogP: 7.23; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): 7.22; (4)ACD/LogD (pH 7.4): 7.22; (5)ACD/BCF (pH 5.5): 182371.81; (6)ACD/BCF (pH 7.4): 182371.81; (7)ACD/KOC (pH 5.5): 202940.95; (8)ACD/KOC (pH 7.4): 202940.95; (9)#H bond acceptors: 4; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 12; (12)Polar Surface Area: 36.92 ?2; (13)Index of Refraction: 1.423; (14)Molar Refractivity: 73.34 cm3; (15)Molar Volume: 287.8 cm3; (16)Polarizability: 29.07×10-24 cm3; (17)Surface Tension: 25.6 dyne/cm; (18)Density: 0.918 g/cm3; (19)Flash Point: 95 °C; (20)Enthalpy of Vaporization: 44.2 kJ/mol; (21)Boiling Point: 224.3 °C at 760 mmHg; (22)Vapour Pressure: 0.137 mmHg at 25°C.

Uses of Silicic acid (H4SiO4),tetrapropyl ester: It is an important organic silicon coupling agent and crosslinking agent used in paints, coatings, silicone rubber and processing of inorganic materials.

When you are using this chemical, please be cautious about it as the following:
It is irritating to eyes, respiratory system and skin. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. If you want to contact this product, you must wear suitable protective clothing, gloves and eye/face protection.

People can use the following data to convert to the molecule structure.
1. SMILES:O(CCC)[Si](OCCC)(OCCC)OCCC
2. InChI:InChI=1/C12H28O4Si/c1-5-9-13-17(14-10-6-2,15-11-7-3)16-12-8-4/h5-12H2,1-4H3 
3. InChIKey:ZQZCOBSUOFHDEE-UHFFFAOYAL