1-Naphthalenesulfonic acid, 7-hydroxy-

Base Information

• Chemical Name: 1-Naphthalenesulfonic acid, 7-hydroxy-
• CAS No.: 132-57-0
• Molecular Formula: C10H8 O4 S
• Molecular Weight: 224.237
• Hs Code.: 2908999090
• European Community (EC) Number: 205-066-6
• UNII: M1490B3Z3G
• DSSTox Substance ID: DTXSID9059626
• Nikkaji Number: J5.572G
• Wikidata: Q1140703
• Mol file: 132-57-0.mol

Synonyms:7-HNS acid;7-hydroxy-1-naphthalenesulfonic acid;7-hydroxy-1-naphthalenesulphonic acid

Chemical Property of 1-Naphthalenesulfonic acid, 7-hydroxy-

Chemical Property:

• Refractive Index: 1.5400 (estimate)
• Boiling Point: °Cat760mmHg
• PKA: 0.26±0.40(Predicted)
• Flash Point: °C
• PSA: 82.98000
• Density: 1.549g/cm³
• LogP: 2.87290
• XLogP3: 1
• Hydrogen Bond Donor Count: 2
• Hydrogen Bond Acceptor Count: 4
• Rotatable Bond Count: 1
• Exact Mass: 224.01432991
• Heavy Atom Count: 15
• Complexity: 319

Purity/Quality:

99.9% ^*data from raw suppliers

7-Hydroxynaphthalene-1-sulfonic acid ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C1=CC2=C(C=C(C=C2)O)C(=C1)S(=O)(=O)O

Technology Process of 1-Naphthalenesulfonic acid, 7-hydroxy-

There total 11 articles about 1-Naphthalenesulfonic acid, 7-hydroxy- which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

β-naphthol (135-19-3) → 7-hydroxy-naphthalene-1-sulfonic acid (132-57-0) + 2-naphthol-6-sulfonic acid (93-01-6)

Guidance literature:

With sulfuric acid;

Reference yield:

7-aminonaphthalene-1-sulfonic acid (86-60-2) → 7-hydroxy-naphthalene-1-sulfonic acid (132-57-0) + 2-naphthol-6-sulfonic acid (93-01-6)

Guidance literature:

With sodium metabisulfite; man saeuert mit Salzsaeure oder Schwefelsaeure und trennt von der gleichzeitig entstehenden Nebenprodukt;

Reference yield:

β-naphthol (135-19-3) → 7-hydroxy-naphthalene-1-sulfonic acid (132-57-0) + 2-naphthol-6,8-disulfonic acid (118-32-1) + 2-naphthol-6-sulfonic acid (93-01-6) + 2-naphthol-3,6-disulphonic acid (148-75-4)

Guidance literature:

With sulfuric acid; at 90 - 110 ℃; Kinetics; Product distribution; heterogeneous sulfonation;

upstream raw materials:

7-aminonaphthalene-1-sulfonic acid

β-naphthol

sulfuric acid

2-hydroxy-naphthalene-1-sulfonic acid

Downstream raw materials:

7-hydroxy-8-azophenyl-naphthalene-1-sulfonic acid

1,7-Dihydroxynaphthalene

2-naphthol-6,8-disulfonic acid

7-aminonaphthalene-1-sulfonic acid

Refernces

• 1、 Radyshevskaya, O. N.,Gordeev, L. S.,Darmanyan, A. P.,Tyabin, N. V.. "MATHEMATICAL MODELLING OF THE KINETICS OF THE HETEROGENEOUS SULFONATION OF 2-NAPHTHOL WITH SULFURIC ACID". . p. 1412 - 1416. Retrieved 2007/10/02.