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Cas Database |
| Name |
Tetrapropoxysilane |
EINECS | 211-659-0 |
| CAS No. | 682-01-9 | Density | 0.918 g/cm3 |
| PSA | 36.92000 | LogP | 3.12840 |
| Solubility | 78mg/L at 20℃ | Melting Point |
<-80°C |
| Formula | C12H28O4Si | Boiling Point | 224.3 °C at 760 mmHg |
| Molecular Weight | 264.437 | Flash Point | 95 °C |
| Transport Information | UN 1993 | Appearance | Colorless transparent liquid |
| Safety | 26-36-37/39 | Risk Codes | 36/37/38 |
| Molecular Structure |
|
Hazard Symbols |
 Xi
|
| Synonyms |
Propylsilicate ((PrO)4Si) (7CI);Propyl silicate (6CI);Dynasil P;Propylorthosilicate;Silane, tetrapropoxy-;Silicon orthopropoxide;Silicontetrapropoxide;Tetra-n-propoxysilane;Tetrapropoxysilane;Tetrapropylorthosilicate;Tetrapropyl silicate; |
Article Data | 31 |
Tetrapropoxysilane Synthetic route
| Conditions | Yield |
|---|---|
| In not given | 81.5% |
| Conditions | Yield |
|---|---|
| With silica gel; potassium hydroxide at 210℃; under 11251.1 Torr; for 6h; Autoclave; Inert atmosphere; | 78.7% |
| With tetrachlorosilane | |
| With tetrachlorosilane |
| Conditions | Yield |
|---|---|
| In not given SiH4 and n-propanol in presence of C3H7OLi;; | 77% |
| In not given SiH4 and n-propanol in presence of C3H7OLi;; | 77% |
| Conditions | Yield |
|---|---|
| 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 | Yield |
|---|---|
| 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 | Yield |
|---|---|
| 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 |
| Conditions | Yield |
|---|---|
| With titanium(IV) isopropylate |
| Conditions | Yield |
|---|---|
| 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;; |
| Conditions | Yield |
|---|---|
| With trichlorosilane; benzene |
Tetrapropoxysilane 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
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