Name | 4-hydroxynaphthalene-1-sulphonic acid |
Synonyms | NW acid Nevile-Winthers acid Nevileandwinther'sacid Nevileandwinther'sacid 1-NAPHTHOL-4-SULFONIC ACID 1-naphthol-4-sulfonic acid N-(M-SULFOPHENYL) GAMMA ACID N-(M-SULFOPHENYL) GAMMA ACID 4-hydroxy-1-naphthalenesulfonicaci 1-Hydroxy-4-naphthalenesulfonic acid 1-Naphthalenesulfonicacid,4-hydroxy- 4-hydroxynaphthalene-1-sulfonic acid 4-Hydroxy-1-naphthalenesulfonic acid 4-hydroxynaphthalene-1-sulphonicacid 4-hydroxynaphthalene-1-sulphonic acid 4-h ydroxynaphthalene-1-sulphonicacid |
CAS | 84-87-7 |
EINECS | 201-568-4 |
InChI | InChI=1/C10H8O4S/c11-9-5-6-10(15(12,13)14)8-4-2-1-3-7(8)9/h1-6,11H,(H,12,13,14) |
Molecular Formula | C10H8O4S |
Molar Mass | 224.23 |
Density | 1.4643 (rough estimate) |
Melting Point | 170℃ |
Boling Point | 335.63°C (rough estimate) |
pKa | 0.73±0.40(Predicted) |
Storage Condition | Room Temprature |
Refractive Index | 1.7040 (estimate) |
Physical and Chemical Properties | Off-white crystalline powder. Melting point 170 °c (decomposition). Soluble in water. |
Use | For the preparation of azo dyes |