H2O7S2
178.15 g/mol
Industrial ChemicalDanger
OLEUM
CAS8014-95-7EC616-954-1
Category
Industrial Chemical
Compound Class
Other
Primary Use
Sulfonating and dehydrating agent
Oleum is a solution of sulfur trioxide in 100% sulfuric acid, used primarily as a sulfonating and dehydrating agent in industrial chemical synthesis.
Sulfonating agent for surfactants and dyesDehydrating agent in nitration reactions for explosivesDrying agent for chlorine and nitric acid
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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CAS 8014-95-7
Related Compounds
StrongSame Parent
Sulfuric acid—(¹⁵N₂)hydrazine (1/1)
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research compound
StrongSame Parent
Hydrazine sulfate
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Chemical intermediate and reagent
StrongSame Parent
Sulfuric acid
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Fertilizer, petroleum refining, battery production
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dispersant, binder, chelating agent
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antioxidant for polymers
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1,3-dichloro-2-(dichloromethyl)benzene
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Industrial intermediate for organic synthesis
ReferenceSame Category
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intermediate for dyes and agrochemicals
Safety Reference
Danger
H314Causes severe skin burns and eye damage
H318Causes serious eye damage
H330Fatal if inhaled
H335May cause respiratory irritation
H331Toxic if inhaled
H350May cause cancer
H371May cause damage to organs
H373May cause damage to organs through prolonged or repeated exposure
Identifiers
IUPAC Name
sulfuric acid;sulfur trioxide
InChIKey
HIFJUMGIHIZEPX-UHFFFAOYSA-N
SMILES
OS(=O)(=O)O.O=S(=O)=O
Synonyms (25)
- OLEUM
- Fuming sulfuric acid
- Oleum (Fuming Sulfuric acid)
- Oleum iodisum
- SULFUR TRIOXIDE, MIXT. CONTG.
- Sulfuric acid fuming
- Sulfuric acid, fuming, 26-29%
- sulfuric acid;sulfur trioxide