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4-aminonaphthalene-2-sulphonic acid
- CAS No.
- 134-54-3
- Chemical Name:
- 4-aminonaphthalene-2-sulphonic acid
- Synonyms
- 4-Amino-2-naphthalenesulfonic acid;4-aminonaphthalene-2-sulphonic acid;2-Naphthalenesulfonic acid, 4-amino-
- CBNumber:
- CB6912095
- Molecular Formula:
- C10H9NO3S
- Molecular Weight:
- 223.25
- MDL Number:
- MFCD00454264
- MOL File:
- 134-54-3.mol
Last updated:2023-11-02 15:08:20
4-aminonaphthalene-2-sulphonic acid Chemical Properties,Uses,Production
Chemical Properties
1-Aminonaphthalene-3-sulfonic acid [134- 54-3]. (4-aminonaphthalene-2-sulfonic acid), C10H9NO3S, Mr 223.24, is only sparingly soluble in water, but its alkali-metal salts are readily soluble. Sulfonation with 20 % oleum yields 1-aminonaphthalene-3,5-disulfonic acid, and heating with water under pressure gives 1- hydroxynaphthalene-3-sulfonic acid, which can also be obtained by diazotization and acid hydrolysis of 1-Aminonaphthalene-3-sulfonic acid.
Production Methods
1-Aminonaphthalene-3,8-disulfonic acid in dilute sodium hydroxide solution is pumped at 40℃ through a special reactor that effects contact with continuously produced sodium amalgam. The resulting liquor is used directly for production of 1- hydroxynaphthalene-3-sulfonic acid.
4-aminonaphthalene-2-sulphonic acid Preparation Products And Raw materials
Raw materials
Preparation Products
4-aminonaphthalene-2-sulphonic acid
4-Amino-2-naphthalenesulfonic acid
2-Naphthalenesulfonic acid, 4-amino-
134-54-3