1992-48-9 Usage
Description
TETRAISOPROPYL ORTHOSILICATE, also known as Tetraisopropoxysilane, is a colorless transparent liquid that serves as an iso-propyl ester of orthosilicic acid. It is widely utilized in various industries due to its unique chemical properties and versatile applications.
Uses
Used in Refractory Industry:
TETRAISOPROPYL ORTHOSILICATE is used as an inorganic binder for refactory fillers and pigments, particularly in precision investment castings. Its ability to bind these materials effectively enhances the performance and durability of the final product.
Used in Casting Industry:
In the casting industry, TETRAISOPROPYL ORTHOSILICATE is employed as a second backup casting coating. It offers a faster curing time compared to the silica system, which improves the efficiency and quality of the casting process.
Used in Sol-Gel Process:
TETRAISOPROPYL ORTHOSILICATE is used as a starting material for the sol-gel process. This process involves the transition of a system from a liquid "sol" into a solid "gel" phase, and the compound plays a crucial role in the formation of the desired material.
Used in Corrosion-Resistant Coating:
TETRAISOPROPYL ORTHOSILICATE is used as a binder in zinc-rich coatings, which are designed to provide corrosion resistance. Its presence in the coating formulation enhances the protective properties and extends the service life of the coated surfaces.
Used in Silicone Sealant Industry:
As a crosslinking agent, TETRAISOPROPYL ORTHOSILICATE is used in the production of silicone sealants. It helps to create a strong, flexible, and durable seal that can withstand various environmental conditions.
Used in Sealing Compositions:
TETRAISOPROPYL ORTHOSILICATE is utilized as a drying agent in sealing compositions. Its ability to absorb moisture helps to ensure a consistent and effective seal, preventing leaks and maintaining the integrity of the sealed area.
Used as a Chemical Intermediate:
TETRAISOPROPYL ORTHOSILICATE is also used as a chemical intermediate in the synthesis of various compounds and materials. Its versatility and reactivity make it a valuable component in the development of new products and technologies.
Additionally, TETRAISOPROPYL ORTHOSILICATE may be hydrolyzed to form silicon dioxide (silica), which has its own set of applications in various industries, further expanding the utility of this versatile compound.
Check Digit Verification of cas no
The CAS Registry Mumber 1992-48-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,9,9 and 2 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1992-48:
(6*1)+(5*9)+(4*9)+(3*2)+(2*4)+(1*8)=109
109 % 10 = 9
So 1992-48-9 is a valid CAS Registry Number.
InChI:InChI=1/C12H28O4Si/c1-9(2)13-17(14-10(3)4,15-11(5)6)16-12(7)8/h9-12H,1-8H3
1992-48-9Relevant articles and documents
Pentacoordinate dihydridosilicates: Synthesis, structure, and aspects of their reactivity
Corriu, Robert J. P.,Guérin, Christian,Henner, Bernard J. L.,Wang, Qunjie
, p. 3574 - 3581 (1991)
The reactions of H- with trialkoxysilanes provide a unique and facile entry to anionic pentacoordinate dihydridosilicates [H2Si(OR)3]-, isolated as stable crystalline products in the case of bulky R groups (R = i-Pr, s-Bu, c-C6H11). Their dynamic behavior (R = i-Pr and s-Bu) has been investigated by 29Si and variable-temperature 1H NMR. Intramolecular exchange of H atoms between axial and equatorial sites is indicated and was found to be significantly dependant on the nature of the solvent. Compared to HSi(OR)3, K[H2Si(OR)3] are versatile reagents: (1) the silicon atom is an electrophilic center and this leads to nucleophilic displacements of the alkoxy groups with Grignard reagents and organolithiums; (2) they are able to reduce very easily carbonyl derivatives to alcohols without any catalyst; (3) they react with primary halides through an ionic mechanism leading to the alkane; (4) the reaction with benzylic halides is more complex and affords the dimer as the major product, the formation of which can be explained by a SET process; (5) the ability to donate one electron is confirmed in the reaction with Cp(CO)2FeI and by direct ESR observation of stable radical intermediates.
-
Okawara et al.
, p. 189,190 (1955)
-
Reaction of silicon with alcohols in autoclave
Krylova,Egorov,Nefedov
, p. 260 - 266 (2017/07/11)
A reaction of activated silicon with alcohols in an autoclave at 240—270 °C was studied. It was found that primary alcohols form tetraalkoxysilanes Si(OR)4 with high selectivity (up to 97%), while the secondary PriOH gave a mixture of compounds HSi(OPri)3, Si(OPri)4, HSi(OPri)2OSi(OPri)2H, HSi(OPri)2OSi(OPri)3, and Si(OPri)3OSi(OPri)3 with the predominance of trialkoxysilane (up to 67%). Carrying out the reaction under the indicated conditions has the advantage of experimental simplicity, reagent availability, high conversion of silicon, good isolated yields of products.
PRECURSORS FOR SILICA OR METAL SILICATE FILMS
-
Page/Page column 2, (2008/06/13)
A composition selected from the group consisting of bis(tert-butoxy)(isopropoxy)silanol, bis(isopropoxy)(tert-butoxy)silanol, bis(tert-pentoxy)(isopropoxy)silanol, bis(isopropoxy)(tert-pentoxy)silanol, bis(tert-pentoxy)(tert-butoxy)silanol, bis(tert-butoxy)(tert-pentoxy)silanol and mixtures thereof; its use to form a metal or metalloid silicate layer on a substrate and the synthesis of the mixed alkoxysilanols.
