Regarding naphthalene in naphthalenesulfonic acid
Thread Content
I would like to ask the experts here: how can I remove the excess naphthalene from naphthalenesulfonic acid?
Generally, sulfuric acid is used in excess to ensure complete reaction of naphthalene. Then there are two types of products, namely α-naphthalenesulfonic acid and β-naphthalenesulfonic acid.
That’s right; the cost of naphthalene is higher than that of sulfuric acid, so sulfuric acid is generally used in excess