pyrosilicic acid

Base Information

• Chemical Name: pyrosilicic acid
• CAS No.: 20638-18-0
• Molecular Formula: H₆O₇Si₂
• Molecular Weight: 174.214
• Mol file: 20638-18-0.mol

Synonyms:pyrosilicic acid

Chemical Property of pyrosilicic acid

Chemical Property:

Purity/Quality:

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MSDS Files:

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Technology Process of pyrosilicic acid

There total 4 articles about pyrosilicic acid which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 92.0%

silicic acid tetrabenzyl ester (4424-00-4) → pyrosilicic acid (20638-18-0) + silicic Acid (10193-36-9,62647-18-1)

Guidance literature:

With palladium-platinum; hydrogen; aniline; at 20 ℃; for 2h; Concentration; Reagent/catalyst; Time;

Reference yield: 51.0%

sodium silicate octahydrate → pyrosilicic acid (20638-18-0) + cyclo trisiloxanehexaol (20638-19-1) + (HO)3SiOSi(OH)2OSi(OH)3 (57956-13-5) + (HO)2SiOSi(OH)2OSi(OH)2O(Si(OH)2O) (20761-28-8) + silicic Acid (10193-36-9,62647-18-1)

Guidance literature:

With sulfuric acid; byproducts: H10Si6O17, H10Si8O21, polysilicate; Na2H2SiO4*8H2O added to zeolite ion-exchange/H2SO4 at 2°C; filtered, product yield dependence to ageing time at room temp.; Kinetics;

DOI:10.1039/DT9800000393

Reference yield: 47.0%

silicic acid tetrabenzyl ester (4424-00-4) → pyrosilicic acid (20638-18-0) + cyclo trisiloxanehexaol (20638-19-1) + silicic Acid (10193-36-9,62647-18-1)

Guidance literature:

With palladium-platinum; hydrogen; at 20 ℃; for 2h;

upstream raw materials:

silicic acid tetrabenzyl ester

Downstream raw materials:

silica gel

Refernces

• 1、 Glasser, Lesley S.,Lachowski, Eric E.. "Silicate Species in Solution. Part 1. Experimental Observations". . p. 393 - 398. Retrieved 2007/10/02.