ChemicalBook >> CAS DataBase List >>1-Naphthol-3,6-disulfonic acid
1-Naphthol-3,6-disulfonic acid
- CAS No.
- 578-85-8
- Chemical Name:
- 1-Naphthol-3,6-disulfonic acid
- Synonyms
- 1-Naphthol-3,6-disul;1-Naphthol-3,6-disulfonic;1-Naphthol-3,6-disulfonic acid;Sodium1-naphthol-3,6-disulfonate;1-NAPHTHOL-3,6-DISULFONIC ACID 98%;1-Hydroxy-3,6-naphthalenedisulfonic acid;1-Hydroxynaphthalene-3,6-disulfonic acid;4-hydroxynaphthalene-2,7-disulfonic acid;4-Hydroxy-2,7-Naphthalenedisulfonic Acid;4-hydroxynaphthalene-2,7-disulphonic acid
- CBNumber:
- CB0512345
- Molecular Formula:
- C10H8O7S2
- Molecular Weight:
- 304.3
- MDL Number:
- MFCD00065322
- MOL File:
- 578-85-8.mol
Last updated:2023-11-01 14:37:45
| Density | 1.816±0.06 g/cm3(Predicted) |
|---|---|
| pka | -0.14±0.40(Predicted) |
| CAS DataBase Reference | 578-85-8(CAS DataBase Reference) |
| EPA Substance Registry System | 2,7-Naphthalenedisulfonic acid, 4-hydroxy- (578-85-8) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS05 |
|---|---|
| Signal word | Danger |
| Hazard statements | H314 |
| Precautionary statements | P260-P264-P280-P301+P330+P331-P303+P361+P353-P363-P304+P340-P310-P321-P305+P351+P338-P405-P501 |
1-Naphthol-3,6-disulfonic acid Chemical Properties,Uses,Production
Chemical Properties
Off-white paste. 1-Hydroxynaphthalene-3,6-disulfonic acid [578-85-8]. (4-hydroxynaphthalene-2,7- disulfonic acid), RG acid, Violet acid, C10H8O7S2, Mr 304.3: the free acid ( pKa 8.56) and its alkalimetal salts are readily soluble in water, but the acid sodium salt can be precipitated from concentrated solution with salt. Sulfonation with oleum at 125℃ gives a tetrasulfonic acid, and amination with ammonia and ammonium chloride at 160℃ gives a mixture of 3-amino1-hydroxynaphthalene-6-sulfonic acid and 6- amino-1-hydroxynaphthalene-3-sulfonic acid. Alkali fusion at 170℃ gives mainly 1,6-dihydroxynaphthalene-3-sulfonic acid, and at 250℃ yields 1,3,6-trihydroxynaphthalene. Diazo coupling takes place in the 2-position.
Uses
1-Naphthol-3,6-disulfonic acid is mainly used in the manufacture of acid dyes
Production Methods
Naphthalene-1,3,6-trisulfonic acid is heated with 50 % sodium hydroxide at 180 C for 15 h in an autoclave. After dilution with water, the product is salted out as the monosodium salt and purified by washing with brine.
1-Naphthol-3,6-disulfonic acid Preparation Products And Raw materials
Raw materials
Preparation Products
GERANINE G
4-Hydroxy-3-[[4'-[(1-hydroxy-6-phenylamino-3-sodiosulfo-2-naphthalenyl)azo]-1,1'-biphenyl-4-yl]azo]naphthalene-2,7-disulfonic acid disodium salt
2,7-Naphthalenedisulfonic acid, 3-[[3,3'-dimethyl-4'-[[3-oxo-1-[(phenylamino)carbonyl]propyl]azo][1,1'-biphenyl]-4-yl]azo]-4-hydroxy-, disodium salt
disodium 3-[[4-(acetylamino)phenyl]azo]-4-hydroxynaphthalene-2,7-disulphonate
4-Hydroxy-3-[[4'-[(1-hydroxy-4-sulfo-2-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]-2,7-naphthalenedisulfonic acid trisodium salt
disodium 4-hydroxy-3-[[4'-[(2-hydroxynaphthyl)azo]-2,2'-dimethyl[1,1'-biphenyl]-4-yl]azo]naphthalene-2,7-disulphonate
4-Hydroxy-3-(1-naphthalenylazo)-2,7-naphthalenedisulfonic acid disodium salt
Solvent Red 32
2,7-Naphthalenedisulfonic acid, 4-hydroxy-3-(2-naphthalenylazo)-, disodium salt
ACID RED 8
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Global( 90)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| career henan chemical co | +86-0371-86658258 | sales@coreychem.com | China | 29914 | 58 |
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 | linda@hubeijusheng.com | CHINA | 28180 | 58 |
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| Chongqing Chemdad Co., Ltd | +86-023-61398051 +8613650506873 | sales@chemdad.com | China | 39916 | 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 |
| ANHUI WITOP BIOTECH CO., LTD | +8615255079626 | eric@witopchemical.com | China | 23556 | 58 |
| Henan Yufu New Materials Co.,Ltd | sales@yufluoro.com | China | 300 | 58 | |
| Dayang Chem (Hangzhou) Co.,Ltd. | 571-88938639 +8617705817739 | info@dycnchem.com | CHINA | 52867 | 58 |
| Hebei Guanlang Biotechnology Co., Ltd. | +86-19930503259 +86-19930503259 | cherry@crovellbio.com | China | 18458 | 58 |
View Lastest Price from 1-Naphthol-3,6-disulfonic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2021-08-12 | 1-Naphthol-3,6-disulfonic acid
578-85-8
|
US $15.00-10.00 / KG | 1KG | 99%+ HPLC | Monthly supply of 1 ton | Zhuozhou Wenxi import and Export Co., Ltd | |
 |
2019-07-06 | 1-Naphthol-3,6-disulfonic acid
578-85-8
|
US $1.00 / kg | 1kg | 97%-99% | as request | Career Henan Chemical Co |
-
- 1-Naphthol-3,6-disulfonic acid
578-85-8
- US $15.00-10.00 / KG
- 99%+ HPLC
- Zhuozhou Wenxi import and Export Co., Ltd
-
- 1-Naphthol-3,6-disulfonic acid
578-85-8
- US $1.00 / kg
- 97%-99%
- Career Henan Chemical Co
578-85-8(1-Naphthol-3,6-disulfonic acid)Related Search:
1-NAPHTHOL-3,6-DISULFONIC ACID 98%
1-Naphthol-3,6-disulfonic acid
1-Hydroxy-3,6-naphthalenedisulfonic acid
1-Hydroxynaphthalene-3,6-bissulfonic acid
1-Hydroxynaphthalene-3,6-disulfonic acid
1-Naphthol-3,6-disul
4-Hydroxy-2,7-Naphthalenedisulfonic Acid
4-hydroxynaphthalene-2,7-disulfonic acid
1-NAPHTHOL-3,6-DISULFONIC ACID ≡96%(HPLC)
4-hydroxynaphthalene-2,7-disulphonic acid
1-Naphthol-3,6-disulfonic
Sodium1-naphthol-3,6-disulfonate
2,7-Naphthalenedisulfonic acid, 4-hydroxy-
578-85-8
C10H5OHSO3H2
Intermediates of Dyes and Pigments
Organic acids