he is not using chemistry, he is using delusions from 911 truth. He has no clue sulfur dioxide comes from the fires at the WTC.
He has to ignore the fires from the WTC can have the following great things. Inorganic acidic compounds due to chlorine and fluorine in the tires, plastics and other stuff from the WTC, including hydrochloric acid (HCl ) and hydrofluoric acid (HF). Acidic sulfur compounds from sulfur in the tires and other WTC junk, including sulfur dioxide (SO2), sulfuric acid (H2SO4), sulfurous acid (H2SO3) and sulfur trioxide (SO3) which forms sulfuric acid on contact with water or atmospheric water vapor. Acidic nitrogen compounds due to combustion with excess air including but not limited to nitric acid (HNO3) and nitrous acid (HNO2).