Naphthalene → Sulfuric Acid

HRID 1389711Notes

Reaction equation

HRID 1389711 reaction equation
[CH:1]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH:4]=[CH:3][CH:2]=1.[S:11](=[O:15])(=[O:14])([OH:13])[OH:12]>>[C:9]1([S:11]([OH:14])(=[O:13])=[O:12])[C:10]2[C:5](=[CH:4][CH:3]=[CH:2][CH:1]=2)[CH:6]=[CH:7][CH:8]=1.[S:11](=[O:13])(=[O:12])([OH:15])[OH:14]

Participants

4

Reactant 2

HCID 931NaphthaleneHCID 1118Sulfuric Acid

Product 2

HCID 1118Sulfuric AcidHCID 68121-Naphthalenesulfonic acid

Conditions

Temperature
155 °C

Procedure

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.

Workup

  1. customreaction mixture
  2. customwas reacted for 3 hours at 155° C.

Sources & evidence

ORD record
ord-e473303391ad4313ae0f73c700200e9c
Source dataset
uspto-grants-1981_01
Patent number
US04245994

Reaction notes

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