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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1904174Generated: October 26, 2026

Fuming sulfuric acid → Cleve's acid

https://huagongshe.com/reaction/1904174

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFuming sulfuric acidHCID 24681—
Reactant4-Aminonaphthalene-1,3,6-trisulfonic acidHCID 12944563—
ProductCleve's acidHCID 8386—

Reaction Steps

The sulphonation can be continued to 1-aminonaphthalene-2,4,7-trisulphonic acid by addition of a further 248 g of 65% strength oleum to the sulphonation mixture. Hydrolysis of the trisulphonation mixture in turn gives pure 1,7-Cleve's acid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04836959
Source datasetuspto-grants-1989_06
ORD IDord-d437b25c532d4ee3a76554a233b8aa10
Source noteuspto-grants-1989_06