silicone itself is not poisonous, but some silica gel is blended with additives dangerous to body, silica gel is an extremely active adsorbent material, is an amorphous material, its chemical formula is mSiO2-nH2O, insoluble in water and any kind of solvent, non-toxic, unappetizing, chemically steady, with the exception of solid alkali, hydrofluoric acid does not react with any kind of substances. Numerous types of silica gel have various microporous frameworks because of various manufacturing methods.
Silicone has relatively heat tolerance, however get it near a real fire and also it deteriorates. When I overheated treated silicone caulk, it weakened to an extremely viscous liquid, a little bit gummier than uncured silicone caulk. Caulk is tin-catalyzed silicone as well as your pots and pans is probably platinum-catalyzed silicone. Evaluate it by yourself if you need to.
You also asked whether there are toxic decomposition products. You’ll have to look that up, as well as sadly it depends on the type of silicone. Regarding I know, cookware and excellent quality consumer products are made of platinum-catalyzed silicone.
For example, if heated up to 150 ° C you would certainly see really little modification in the silicone, even if held at this temperature for a very long time, At 200 ° C the silicone will slowly end up being harder and also less elastic with time, as well as if the silicone was warmed up to a temperature level past 300 ° C, you would rapidly see the product