Safety Reference
Danger
H314Causes severe skin burns and eye damage
H318
Sourcing OLEUM?
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Sourcing OLEUM?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.
Oleum is a solution of sulfur trioxide in 100% sulfuric acid, used primarily as a sulfonating and dehydrating agent in industrial chemical synthesis.
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.
The international HS code for OLEUM (CAS 8014-95-7) is 2807.00.
2807.00
2807 00 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
sulfuric acid;sulfur trioxide
HIFJUMGIHIZEPX-UHFFFAOYSA-N
OS(=O)(=O)O.O=S(=O)=O