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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1389711Generated: November 2, 2026

Naphthalene → Sulfuric Acid

https://huagongshe.com/reaction/1389711

Reaction equation

Participants

RoleNameHCIDCharge
ReactantNaphthaleneHCID 931—
ReactantSulfuric AcidHCID 1118—
ProductSulfuric AcidHCID 1118—
Product1-Naphthalenesulfonic acidHCID 6812—

Reaction Conditions

Temperature155 °C

Reaction Steps

128 g (1 m) of naphthalene and 160 g (1.6 m) of sulfuric acid 98% by weight were mixed together in a reaction flask. The resulting agitated reaction mixture was heated rapidly to 155° C. and was reacted for 3 hours at 155° C. to obtain a naphthalenesulfonic acid and sulfuric acid mixture. This mixture contained about 20% free sulfuric acid and solidified at about 80° C. The mixture was used either in solid or melted form.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04245994
Source datasetuspto-grants-1981_01
ORD IDord-e473303391ad4313ae0f73c700200e9c
Source noteuspto-grants-1981_01