ChemicalBook >> CAS DataBase List >>6-Hydroxynaphthalene-2-sulphonic acid
6-Hydroxynaphthalene-2-sulphonic acid
- CAS No.
- 93-01-6
- Chemical Name:
- 6-Hydroxynaphthalene-2-sulphonic acid
- Synonyms
- Baum's acid;Schafferacid;Scheffers acid;SCHAEFFER ACID;SCHAFFER'S SALT;Schaffer`s acid;SCHAEFFER'S ACID;SCHAEFFER'S SALT;kyselinaschaferova;Kyselina schaferova
- CBNumber:
- CB7301210
- Molecular Formula:
- C10H8O4S
- Molecular Weight:
- 224.23
- MDL Number:
- MFCD00035733
- MOL File:
- 93-01-6.mol
Last updated:2023-11-01 14:31:33
| Melting point | >300 °C(lit.) |
|---|---|
| Boiling point | 335.63°C (rough estimate) |
| Density | 1.4643 (rough estimate) |
| refractive index | 1.5400 (estimate) |
| pka | 0.41±0.40(Predicted) |
| CAS DataBase Reference | 93-01-6(CAS DataBase Reference) |
| EWG's Food Scores | 1 |
| FDA UNII | O937I7N48V |
| NIST Chemistry Reference | 2-Naphthalenesulfonic acid, 6-hydroxy-(93-01-6) |
| EPA Substance Registry System | 2-Naphthalenesulfonic acid, 6-hydroxy- (93-01-6) |
6-Hydroxynaphthalene-2-sulphonic acid price More Price(11)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Matrix Scientific | 100442 | 6-Hydroxynaphthalene-2-sulfonic acid 95+% | 93-01-6 | 250mg | $435 | 2021-12-16 | Buy |
| AK Scientific | T979 | 6-Hydroxynaphthalene-2-sulphonicacid | 93-01-6 | 250mg | $637 | 2021-12-16 | Buy |
| Matrix Scientific | 100442 | 6-Hydroxynaphthalene-2-sulfonic acid 95+% | 93-01-6 | 1g | $975 | 2021-12-16 | Buy |
| American Custom Chemicals Corporation | CHM0021585 | 6-HYDROXYNAPHTHALENE-2-SULPHONIC ACID 95.00% | 93-01-6 | 1G | $1076.92 | 2021-12-16 | Buy |
| Alichem | 93016 | 6-Hydroxynaphthalene-2-sulfonicacid | 93-01-6 | 1g | $998 | 2021-12-16 | Buy |
6-Hydroxynaphthalene-2-sulphonic acid Chemical Properties,Uses,Production
Chemical Properties
2-Hydroxynaphthalene- 6 -sulfonic acid [93-01-6]. (6-hydroxynaphthalene-2-sulfonic acid), Schaeffer acid, C10H8O4S, Mr 224.23, is readily soluble in water, from which it can be recrystallized as the monohydrate (mp 129℃). The sodium salt is sparingly soluble in cold water (1.7 %) but forms a 30 % solution at 80℃. Coupling with diazo compounds results in substitution in the 1-position as does treatment with bromine, nitrous acid, or oleum. Fusion with potassium hydroxide gives 2,6-dihydroxynaphthalene, amination gives 2- aminonaphthalene-6-sulfonic acid, and sulfonation (20 % oleum, 25℃) results in 2-hydroxynaphthalene-1,6-disulfonic acid.
Uses
2-Hydroxynaphthalene-6-sulfonic acid is used as a coupling component for a wide range of azo dyes, e.g., C.I. Acid Orange 12, C.I. Food Yellow 3, and C.I. Food Orange 2. It is also used as an intermediate for more highly substituted dye components and synthetic tanning agents. The 1-nitroso derivative forms an iron complex (C.I. Acid Green 1) which was formerly used as a wool dye.
Preparation
2-Naphthol is added to a mixture of sulfuric acid and sodium sulfate, and the reaction is continued at 90 C for 12 h. After pouring the reaction mixture into water, the sodium salt of the product is precipitated by addition of salt and filtered at 60℃ to separate the isomers.
6-Hydroxynaphthalene-2-sulphonic acid Preparation Products And Raw materials
Raw materials
Preparation Products
7-hydroxynaphthalene-1-sulphonic acid
Acid Black 26
Sunset Yellow FCF
Benzoic acid, 2-[(2-hydroxy-6-sulfo-1-naphthalenyl)azo]-, disodium salt
6-Hydroxy-5-[(2-hydroxy-3,5-dinitrophenyl)azo]-2-naphthalenesulfonic acid sodium salt
Acid Red 142
Acid orange 16 (C.I. 16011)
5-[[4-[(4-Amino-6-sodiosulfo-1-naphthalenyl)azo]-5-methyl-2-methoxyphenyl]azo]-6-hydroxynaphthalene-2-sulfonic acid sodium salt
4-[(4-Amino-2-chloro-5-methoxyphenyl)azo]-2-ethoxy-2'-hydroxy-[1,1'-azobisnaphthalene]-6,6'-disulfonic acid disodium salt
SOLVENT VIOLET 2
2-Naphthalenesulfonic acid, 5,5'-[(2,2'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[6-hydroxy-, disodium salt
trisodium 8-[[4-[(4-aminophenyl)azo]-6-sulphonatonaphthyl]azo]-5-[(2-hydroxy-6-sulphonatonaphthyl)azo]naphthalene-2-sulphonate
Acid alizarin black SN;Mordant black 25
Acid Blue 26
Direct black 75 (C.I. 35870)
1of5
Global( 83)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 | linda@hubeijusheng.com | CHINA | 28180 | 58 |
| career henan chemical co | +86-0371-86658258 15093356674; | factory@coreychem.com | China | 29826 | 58 |
| SIMAGCHEM CORP | +86-13806087780 | sale@simagchem.com | China | 17367 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | 0551-65418671 | sales@tnjchem.com | China | 34572 | 58 |
| Dayang Chem (Hangzhou) Co.,Ltd. | 571-88938639 +8617705817739 | info@dycnchem.com | CHINA | 52867 | 58 |
| Alfa Chemistry | +1-5166625404 | Info@alfa-chemistry.com | United States | 21317 | 58 |
| Hebei Guanlang Biotechnology Co., Ltd. | +86-19930503259 +86-19930503259 | cherry@crovellbio.com | China | 18458 | 58 |
| PT CHEM GROUP LIMITED | +86-85511178 +86-85511178 | peter68@ptchemgroup.com | China | 35453 | 58 |
| China National Standard Pharmaceutical Corporation Limited | +8615391658522 | overseasales@yongstandards.com | China | 11927 | 58 |
| LEAPCHEM CO., LTD. | +86-852-30606658 | market18@leapchem.com | China | 43348 | 58 |
View Lastest Price from 6-Hydroxynaphthalene-2-sulphonic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2019-12-31 | 6-Hydroxynaphthalene-2-sulphonic acid
93-01-6
|
US $1.00 / g | 1g | 99% | 200kg | Career Henan Chemical Co |
-
- 6-Hydroxynaphthalene-2-sulphonic acid
93-01-6
- US $1.00 / g
- 99%
- Career Henan Chemical Co
93-01-6(6-Hydroxynaphthalene-2-sulphonic acid)Related Search:
2-Hydroxy-6-naphthalenesulfonic acid
2-hydroxy-6-naphthalenesulfonicacid
2-Hydroxynaphthalene-6-sulfonic acid
2-Naphtol-6-sulfosaure
6-hydroxy-2-naphthalenesulfonicaci
Baum's acid
beta-Naphthol-6-sulfonic acid
beta-naphthol-6-sulfonicacid
beta-Naphtholsulfonic acid S
beta-naphtholsulfonicacids
SCHAFFER'S SALT
SODIUM 6-HYDROXY-2-NAPHTHALENESULFONATE
2-naphthol-6-sulphonic acid
6-Hydroxy-6-Sulfonic Acid
Scheffers acid
6-hydroxy-2-naphthalenesulfonic acid
6-HYDROXY-2-NAPHTHALENESULFONIC ACID SODIUM SALT
6-Hydroxynaphthalene-2-sulphonic acid
2-naphthol-6-sulfonic acid
2-NAPHTHOL-6-SULFONIC ACID SODIUM
2-NAPHTHOL-6-SULFONIC ACID SODIUM SALT
2-NAPHTHOL-6-SULFONIC ACID SODIUM SALT DIHYDRATE
2-NAPTHOL-6-SULFONIC ACID
Schaffer`s acid
6-Hydroxy-2-Naphthalenesulphonic Acid
6-hydroxynaphthalene-2-sulfonic acid
2-Naphthol-6-potassiumsulfonate
2-Naphthalenesulfonic acid, 6-hydroxy-
1-naphthol-2-sulfonic acid
6-Hydroxy-2-naphthalenesulfonic acid sodium salt hydrate technical grade
Kyselina 2-naftol-6-sulfonova
Kyselina schaferova
kyselina2-naftol-6-sulfonova
kyselinaschaferova
schaeffer’sbeta-acid
schaeffer’sbeta-naphtholsulfonicacid
Schaeffer's beta-acid
Schaeffer's beta-naphtholsulfonic acid
Schafferacid
SODIUM 2-NAPHTHOL-6-SULFONATE
SCHAEFFER'S ACID
SCHAEFFER'S SALT
SCHAEFFER ACID
Ponceau 4R Impurity 4 Monomer
Olaquindox Impurity 6
93-01-6
Organic Building Blocks
Sulfonic/Sulfinic Acids
Sulfur Compounds
Building Blocks
Organic acids
Intermediates of Dyes and Pigments