Oleum 23%

Chemical Formula: H2S2O7


Appearance: Clear to off white liquid
Sp Gravity at 300C: 1.916 at 4C (39 F)
Boiling point: 1400C (284 F) at 760 mm Hg

Attacks many metals with liberation of hydrogen, which is inflammable and forms explosive mixture, Hygroscopic in nature, oxidizing agent.


Sulphuric Acid: 104.50% min
Free SO3: 23.0% min
Iron (as Fe): 0.05% max
Residue on ignition: 0.02% max
Sulphur dioxide (as SO2): 0.02% max
Chloride (as Cl): 0.02% max
Arsenic (as As) : Less than 1 ppm
Copper (as Cu): Less than 1 ppm
Lead (as Pb): Less than 3 ppm
Mercury (as Hg): Less than 0.5 ppm
Cadmium (as Cd): Less than 1 ppm
Turbidity: Less than 50 ntu


Sulphonating agent for organic and alizarin dyestuff.
Dehydrating agent in nitration reactions. Used for manufacturing dyes & explosives. Used as Lab reagents.

Dangers and Precautions for Handling Product:

Toxic by ingestion
Causes severe damage to eyes, skin & air passage
Reaction with moist air produces mist, which has severe irritant effect on eyes, skin & air passage
Store the material in stainless steel or HM HDPE containers. Avoid contact with moisture
Fire risk in contact with organic substances.


ISO tanks / tanker load.



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