Tailpipe duct attachments

The yellow substance could be high-chloride compounds or polymers; it has a low ignition point and burns easily. This may be due to a low reaction temperature and small proportions of the substances involved, and it tends to adhere to the walls of the chassis and exhaust pipes

Oh, there are yellow substances; they can also be found in the HCl synthesis furnace. I asked several people, but no one knows what they are. Thank you to the person above; could you explain more in detail about high chlorides?

Silicon halide compounds have a complex composition, are flammable, should not be struck, and need to be cleaned with an alkaline solution.

We’ve had that here too; the handling is simple and brutal. Strike + poke with a stick, then blast with high-pressure N2!

I wonder if these yellow substances are incomplete hydrolysis products of chlorosilanes? If chlorosilane is completely hydrolyzed, it will naturally be a white powder. If it is not completely hydrolyzed, for example, if chlorosilane hydrolyzes to form solid lumps that enclose the chlorosilane inside, preventing it from being fully hydrolyzed, then a yellow substance is formed. As the original poster said, after removing the reduction furnace, these substances were found inside the pipes; this is likely due to residual chlorosilanes in the pipes being exposed to air, and the moisture in the air causing them to hydrolyze, though not completely, resulting in yellowish compounds formed as a result of incomplete hydrolysis. As for whether these incompletely hydrolyzed substances are high-chlorides is debatable. :$ This post was last edited by ulsgh on 2009-2-27 11:47.]

Polydimethylsilane or its hydrolysates, as well as high-chloride compounds, are all possible options; it is recommended to rinse with deionized water and dry by nitrogen purging

What is the reason for washing with demineralized water instead of an alkaline solution?