How to pronounce “solubilized” in English

And we studied vulcanized rubber shoe soles and particularly investigated the question of how much of it is formed into one molecule versus how much is stillsolubilized. And he said, no, it's probably only about 80% one molecule, and about 20% of it is not connected to that.And it's like, Jesus, what are the chances that you have a chemical engineer who specifically studied the question of vulcanized rubber shoe soles