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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1462966Generated: October 26, 2026

Nitric Acid → Fuming sulfuric acid

https://huagongshe.com/reaction/1462966

Reaction equation

Participants

RoleNameHCIDCharge
ReactantNitric AcidHCID 944—
ReactantSulfuric AcidHCID 1118—
ReactantPentachlorothiophenolHCID 8620—
ReactantSulfur trioxideHCID 24682—
ReactantSodiumHCID 5360545—
ProductFuming sulfuric acidHCID 24681—

Reaction Steps

reacting this sodium salt of pentachlorothiophenol with a mixed nitration acid comprising nitric acid and sulfuric acid (and, preferably, sulfur trioxide to form oleum) at a temperature from about 35° C. to about 110° C. to form pentachloronitrobenzene, the nitric acid being in molar excess of the pentachlorothiophenol.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04461918
Source datasetuspto-grants-1984_07
ORD IDord-ef5d4417de7a4c94a97e21416b1302a2
Source noteuspto-grants-1984_07