ChemicalBook > Product Catalog > Organic Chemistry > Hydrocarbons and derivatives > Hydrocarbon sulfonate > Naphthalene-2-sulfonic acid
Naphthalene-2-sulfonic acid
- Product Name:Naphthalene-2-sulfonic acid
- CAS:120-18-3
- MF:C10H8O3S
- MW:208.23
- EINECS:204-375-3
- Mol File:120-18-3.mol
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Naphthalene-2-sulfonic acid Chemical Properties
- Melting point:124 °C
- Boiling point:317.43°C (rough estimate)
- Density 1.44 g/cm
- refractive index 1.4998 (estimate)
- solubility water: freely soluble(lit.)
- pka0.27±0.10(Predicted)
- Water Solubility Soluble in water.
- Sensitive Hygroscopic
- Merck 6377
- CAS DataBase Reference120-18-3(CAS DataBase Reference)
- EPA Substance Registry System2-Naphthalenesulfonic acid (120-18-3)
- Hazard Codes C,F
- Risk Statements 35-34-11
- Safety Statements 26-36/37/39-45-16
- RIDADR UN 2583 8/PG 2
- WGK Germany 1
- RTECS QK1225000
- Hazard Note Corrosive
- TSCA Yes
- HazardClass 8
- PackingGroup III
- Language:EnglishProvider:2-Naphthalenesulfonic acid
- Language:EnglishProvider:SigmaAldrich
Naphthalene-2-sulfonic acid Usage And Synthesis
- Chemical PropertiesNondeliquescent, white plates.Soluble in water, alcohol, and ether. Combustible.
- UsesStarting point in the manufacture of β-naphthol, β-naphtholsulfonic acid, β-naphthylaminesulfonic acid, etc.
- DefinitionChEBI: A naphthalenesulfonic acid in which the sulfo group is linked to position 2 of the naphthalene ring.
- Purification MethodsCrystallise the acid from conc HCl. The S-benzylisothiuronium salt has m 192o (from aqueous EtOH). [Berger Acta Chem Scand 8 432 1954, Beilstein 11 H 171, 11 IV 527.]
Naphthalene-2-sulfonic acid Preparation Products And Raw materials
- Raw materials1-Naphthalenesulfonic acidSodium 2-naphthalenesulfonate
- Preparation Products1-Naphthol2-NaphtholL-Leucine1-Aminonaphthalene-6-sulfonic acidAmbroxane1-Naphthalenesulfonic acidSodium 2-naphthalenesulfonatedisodium methylenebisnaphthalenesulphonateAcid Red 154disodium 3,3'-[cyclohexylidenebis[(2-methoxy-4,1-phenylene)azo]]bis(4,6-dihydroxynaphthalene-2-sulphonate) dispersant FDN-90
- BORDEAUX RED disodium 5-((4-acetylamino-2-sulphophenyl)azo)-6-amino-4-hydroxynaphthalene-2-disulphonate Ponceau S Acid Red 73 nitrazine yellow ARSENAZO III DISODIUM SALT THORIN CROCEIN ORANGE G SULFONAZO III, TITRATION INDICATOR FOR S O4 Naphthalene Naphthalene-2-sulfonic acid Dinonylnaphthalenesulfonic acid Ethyl 2-(Chlorosulfonyl)acetate SULFONIC ACID PHENOLDISULFONIC ACID Sodium 2-naphthalenesulfonate Citric acid Ascoric Acid
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