I have used silicone sealant to seal our toilet bowls's socket against the floor tiles. It turned out, the sealant was overaged and didn't cure anymore. So the socket and the bowl is contamined with uncured silicone. I fear that when I try to seal it with a fresh tube of sealant the residue of old silicone might either hamper the curing of the new one or may form a film preventing the proper contact of the new silicone with the bowl and the tiles.
Is my concern justified?
And if so, how do I remove the remnants properly? I think I could try "silicone remover" but those chemicals are usually meant to loosen cured silicone rubber not uncured one. I don't know if that will work. What household chemicals or common cleaning agents can I use to properly remove any silicone residue?