18407-94-8 Usage
General Description
Tetrakis(ethoxyethoxy)silane, also known as TEOS, is a chemical compound used in the production of silicon dioxide and silicon-based materials. It is a colorless, odorless liquid that is soluble in organic solvents and water. TEOS is commonly employed as a precursor in the synthesis of silica-based materials and silicon dioxide films, particularly in the production of thin films for semiconductor and optical applications. It is also utilized as a surface modification agent and in the formulation of coatings, adhesives, and sealants. TEOS is known for its ability to form uniform and smooth films with excellent adhesion and chemical stability, making it a critical component in the manufacturing processes of various high-tech and industrial products.
Check Digit Verification of cas no
The CAS Registry Mumber 18407-94-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,4,0 and 7 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 18407-94:
(7*1)+(6*8)+(5*4)+(4*0)+(3*7)+(2*9)+(1*4)=118
118 % 10 = 8
So 18407-94-8 is a valid CAS Registry Number.
InChI:InChI=1/C16H36O8Si/c1-5-17-9-13-21-25(22-14-10-18-6-2,23-15-11-19-7-3)24-16-12-20-8-4/h5-16H2,1-4H3
18407-94-8Relevant articles and documents
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.