Sulfur Trioxide & Sulfuric Acid

What is Sulfur Trioxide & Sulfuric Acid?

CAS#: Sulfur Trioxide 007446-11-9, Sulfuric Acid 007664-93-9

Sulfur trioxide (SO₃) is generally a colorless liquid. It can also exist as ice- or fiber-like crystals or as a gas. When SO₃ is exposed to air, it rapidly takes up water and gives off white fumes. It can react with water to form sulfuric acid.

SO₃ is also called sulfuric oxide and sulfuric anhydride. It is used in the production of sulfuric acid and other chemicals, and explosives.

Sulfuric acid is a clear, colorless, oily liquid that is very corrosive. It is also called sulphine acid, battery acid, and hydrogen sulfate. It is used in the manufacture of fertilizers, explosives, other acids, and glue; in the purifiction of petroleum; in the pickling of metal; and in lead-acid batteries (used in most vehicles).

Related Resources for Sulfur Trioxide & Sulfuric Acid

• Public Health Statement
  Summary about a hazardous substance taken from Chapter One of its respective ATSDR Toxicological Profile.
  
• ToxFAQ
  Fact sheet that answers the most frequently asked questions about a contaminant and its health effects.
  
• Toxicological Profile
  Succinctly characterizes the toxicologic and adverse health effects information for a hazardous substance.
  
top
This page was updated on 09/22/2008