Nano-silica
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Nano-silica is non-toxic, odorless, and pollution-free. It has small particle sizes and a large specific surface area; its surface contains numerous unsaturated bonds as well as hydroxyl groups in various bonding states. When added to various materials, it can cause significant changes in the properties of those materials. Therefore, it has broad application prospects in numerous industrial fields. I wonder if there are any friends who are engaged in research on nano-silica. I have some nano-silica here, which was obtained using the silane combustion method. The amount isn’t very **much – around 200g per day. Are there any interested friends?
What is the particle size, and is it hydrophilic or lipophilic?
It can be measured; you can’t rely solely on intuition
The normal combustion of silane is SiH4 + 2O2 == SiO2 + 2H2O. Who knows if there are any other reactions as well? For example, is this the same reaction that occurs in conditions of insufficient oxygen?
Without an oxygen reaction, it is Si+H4. By the way, which reaction is used to produce your SiH4?
What is the difference between nano-silica and white carbon black? I heard that white carbon black is also at the nanoscale. I heard someone say before that nano-silica was a big joke orchestrated by the Chinese Academy of Sciences; does anyone know anything about this?
In the laboratory method, an ether solution of lithium aluminum hydride is placed in a three-necked flask; then, under stirring and at temperatures ranging from -12 to -20 degrees Celsius, an ether solution of silicon tetrachloride is added drop by drop. The gases generated pass through cold traps at temperatures of -95 degrees Celsius, -130 to -160 degrees Celsius, and -196 degrees Celsius respectively. The product collected at -196 degrees is SiH4. The reaction is: LiAlH4 + SiCl4 → LiCl + AlCl3 + SiH4
Industrial grade SiH4 purity levels: 5.5N, 6N
SiH4. The reaction is: LiAlH4 + SiCl4 → LiCl + AlCl3 + SiH4. Is it possible if it were LiH4 + SiCl4 → LiCl + SiH4?
Many chemical reactions are unexplainable; I can’t give an answer!