Sulphuric acid
Oleum is more stronger acid than Sulfuric acid
Oleum, also known as fuming sulfuric acid, is typically made by dissolving sulfur trioxide in concentrated sulfuric acid. This creates a solution with a higher concentration of sulfur trioxide, which gives oleum its unique properties. Oleum is widely used in various industrial applications.
Oleum is another name for very pure sulfuric acid (above 98%). Oleum is not a part of sulfuric acid.
The traditional name for fuming sulfuric acid is Oleum. Oleum is used for in water based aerosol coatings. Rust-Oleum has the fuming sulfuric acid in its name and hold many patents on its usage.
Formula: H2S2O7
The traditional Latin name for fuming sulfuric acid is Oleum. It comes from the Latin word for oil (oleum). It is also called Nordhausen acid.
OLEUM
Ten percent oleum refers to a solution that contains 10% sulfur trioxide (SO₃) dissolved in sulfuric acid (H₂SO₄). Oleum is often used in the production of sulfuric acid and in various chemical reactions where concentrated sulfuric acid is needed. The concentration of oleum can vary, with different percentages indicating different amounts of sulfur trioxide in the solution. It is important to handle oleum with care due to its corrosive nature and potential hazards.
Oleum usually weight twice the water, density in SI varies between 1.9 - 2.0 kg/L. For Imperial unit it is approximately 16 Pound/Gallon. I suggest to verify concentration of Oleum for the exact density.
oleum
The dilution of sulfuric acid is exothermic because it releases heat.
Oleum is formed by dissolving sulfur trioxide gas in concentrated sulfuric acid. Sulfur trioxide can be introduced into concentrated sulfuric acid slowly and under controlled conditions to prevent excessive heat generation and to ensure proper mixing. This process results in the formation of oleum, which is a solution of sulfuric acid containing excess sulfur trioxide.