1-Naphthol-4-sulfonic acid
- Product Name
- 1-Naphthol-4-sulfonic acid
- CAS No.
- 84-87-7
- Chemical Name
- 1-Naphthol-4-sulfonic acid
- Synonyms
- Niven acid;Neville acid;1,4-Oxy Acid;Nevile-Winther acid;Nevile-Winthers acid;1-Naphthol-4-sulfoni;HIGH-PURITY N.W. ACID;Nevileandwinther’sacid;Neville and winther acid;Naphthol-4-sulfonic acid
- CBNumber
- CB5743566
- Molecular Formula
- C10H8O4S
- Formula Weight
- 224.23
- MOL File
- 84-87-7.mol
1-Naphthol-4-sulfonic acid Property
- Melting point:
- 170℃
- Boiling point:
- 335.63°C (rough estimate)
- Density
- 1.4643 (rough estimate)
- refractive index
- 1.7040 (estimate)
- pka
- 0.73±0.40(Predicted)
- form
- solid
- form
- solid
- color
- white to yellow
- InChI
- InChI=1S/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)
- InChIKey
- HGWQOFDAUWCQDA-UHFFFAOYSA-N
- SMILES
- C1(S(O)(=O)=O)=C2C(C=CC=C2)=C(O)C=C1
- CAS DataBase Reference
- 84-87-7(CAS DataBase Reference)
- EPA Substance Registry System
- 1-Naphthalenesulfonic acid, 4-hydroxy- (84-87-7)
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- G342
- Product name
- 1-Naphthol-4-sulfonicacid
- Packaging
- 1g
- Price
- $247
- Updated
- 2021/12/16
- Product number
- CHM0018266
- Product name
- 1-NAPHTHOL-4-SULFONIC ACID
- Purity
- 95.00%
- Packaging
- 5G
- Price
- $1127.86
- Updated
- 2021/12/16
- Product number
- 84877
- Product name
- 4-Hydroxynaphthalene-1-sulfonicacid
- Packaging
- 25g
- Price
- $1129.94
- Updated
- 2021/12/16
- Product number
- AS028098
- Product name
- 4-Hydroxynaphthalene-1-sulfonicacid
- Purity
- 97%
- Packaging
- 25g
- Price
- $1130
- Updated
- 2021/12/16
- Product number
- CM140112
- Product name
- 1-Naphthol-4-sulfonicacid
- Purity
- 97%
- Packaging
- 25g
- Price
- $1198
- Updated
- 2021/12/16
1-Naphthol-4-sulfonic acid Chemical Properties,Usage,Production
Chemical Properties
Transparent flake crystal. soluble in water. 1-Hydroxynaphthalene- 4 -sulfonic acid [84-87-7]. (4-hydroxynaphthalene-1-sulfonic acid), Nevile and Winther’s acid, NW acid, C10H8O4S, Mr 224.23, and its salts are water soluble, but the sodium salt may be precipitated from solution by salting out. Coupling with diazo compounds takes place in the 2-position. Nitration yields 2,4-dinitro-1-naphthol, whereas nitrosation gives 2-nitroso-1-hydroxynaphthalene-4-sulfonic acid. Sulfonation leads to a mixture of 1-hydroxynaphthalene-2,4-di- and 2,4,7- trisulfonic acids.
Uses
1-Naphthol-4-sulfonic acid is used as an intermediate of azo dyes to prepare dyes such as direct copper blue BR and 2R, direct violet RB, acid red B and acid medium jujube red B
Preparation
After drying under vacuum, the resulting filter cake contains 1-naphthol-4-sulphonic acid in a yield of 92% of theory and <0.5% 1-naphthol-2-sulphonic acid and 3% of 1-naphthol-2,4-disulphonic acid based on the weight of 1-naphthol-4-sulphonic acid.
Synthesis
1-Naphthol-4-sulfonic acid was synthesized by addition, hydrolysis and acid precipitation of sodium 1,4-aminonaphthalene sulfonate.
1-Naphthol-4-sulfonic acid Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 1-Naphthol-4-sulfonic acid manufacturers
- Product
- 1-Naphthol-4-sulfonic acid 84-87-7
- Price
- US $45.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 5000kg/week
- Release date
- 2024-05-31
- Product
- 1-Naphthol-4-sulfonic acid 84-87-7
- Price
- US $0.00/KG
- Min. Order
- 1KG
- Purity
- 98%min
- Supply Ability
- 30tons/month
- Release date
- 2023-02-25
- Product
- 1-Naphthol-4-sulfonic acid 84-87-7
- Price
- US $0.00/kg
- Min. Order
- 1kg
- Purity
- 65.00%
- Supply Ability
- 20tons
- Release date
- 2023-09-11