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Fuming Sulfuric Acid, 500 grams, 20% SO3 #011-196
Fuming Sulfuric Acid, 500 grams, 20% SO3
Chemical Name:
Fuming Sulfuric Acid
CAS Number:
Chemical Formula:
H2SO4 + SO3
Oleum, Pyrosulfuric Acid, Disulfuric Acid

Detailed Product Description:

Fuming Sulfuric Acid is a colorless, oily, fuming liquid with a

penetrating sulfurous odor.  It is extremely dense with a specific

gravity of 1.92.  Soluble in water with a significant liberation of

heat.  Corrosive to almost all metals.  


Commonly used as a decapping agent for failure analysis of

integrated circuits.



This is reagent grade, comprised of 80% sulfuric acid which is then

saturated with sulfur trioxide gas that makes up the remaining 20%.



Read and understand all precautions stated in Material Safety Data Sheet

(MSDS, downloadable below) before using this substance.


Poison!  Toxic by ingestion.  Strong irritant to eyes and skin. 

Dangerous by inhalation—may cause lung damage.  Corrosive to

Skin and mucous membranes.  Strong oxidizing agent.  Dangerous

fire risk when in contact with organic materials.



Contents of 500 grams comes packed in 500ml PVC-coated/shock-protected

glass bottle. 


Click here to download copy of MSDS (Material Safety Data Sheet).


Click here to download copy of exothermic temperature rise data.


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