4-hydroxynaphthalene-2-sulphonic acid
- Product Name
- 4-hydroxynaphthalene-2-sulphonic acid
- CAS No.
- 3771-14-0
- Chemical Name
- 4-hydroxynaphthalene-2-sulphonic acid
- Synonyms
- 4-Hydroxy-2-naphthalenesulfonic acid;4-hydroxynaphthalene-2-sulfonic acid;4-hydroxynaphthalene-2-sulphonic acid;2-Naphthalenesulfonic acid, 4-hydroxy-
- CBNumber
- CB9936414
- Molecular Formula
- C10H8O4S
- Formula Weight
- 224.23
- MOL File
- 3771-14-0.mol
4-hydroxynaphthalene-2-sulphonic acid Property
- Density
- 1.549±0.06 g/cm3(Predicted)
- pka
- 0.15±0.40(Predicted)
- EPA Substance Registry System
- 2-Naphthalenesulfonic acid, 4-hydroxy- (3771-14-0)
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H302Harmful if swallowed
H314Causes severe skin burns and eye damage
H315Causes skin irritation
- Precautionary statements
-
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P270Do not eat, drink or smoke when using this product.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P301+P330+P331IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P310Immediately call a POISON CENTER or doctor/physician.
P332+P313IF SKIN irritation occurs: Get medical advice/attention.
P362Take off contaminated clothing and wash before reuse.
P405Store locked up.
P501Dispose of contents/container to..…
4-hydroxynaphthalene-2-sulphonic acid Chemical Properties,Usage,Production
Chemical Properties
1-Hydroxynaphthalene-3-sulfonic acid [3771-14-0]. (4-hydroxynaphthalene-2- sulfonic acid), C10H8O4S, Mr 224.2, and its salts are very soluble in water. Coupling with diazo compounds occurs in the 2-position with weak diazo compounds, but in the 4-position with strong diazo compounds such as diazotized nitroanilines. Heating with ammonia at 170℃ gives 1,3-naphthalenediamine.
Uses
1-Hydroxynaphthalene-3-sulfonic acid is used as a coupling component for the production of direct dyes.
Preparation
1-Aminonaphthalene-3-sulfonic acid is heated with dilute sulfuric acid by using high-pressure steam to maintain a pressure of 1 MPa for 20 h. After cooling, screening, and adding salt to the hot liquor, the sodium salt crystallizes on cooling and is isolated in 80 % yield.
4-hydroxynaphthalene-2-sulphonic acid Preparation Products And Raw materials
Raw materials
Preparation Products
4-hydroxynaphthalene-2-sulphonic acid Suppliers
- Tel
- 0535-6385396
- Fax
- +86 (535) 638-9971
- info@carbottpharm.com
- Country
- China
- ProdList
- 912
- Advantage
- 56
- Tel
- 18871490254
- Fax
- 027-59599243
- linda@hubeijusheng.com
- Country
- CHINA
- ProdList
- 28172
- Advantage
- 58
- Tel
- +86-029-81138252 +86-18789408387
- Fax
- 029-88380327
- 1057@dideu.com
- Country
- China
- ProdList
- 3889
- Advantage
- 58
- Tel
- 4008210725 4008210725
- malulu@leyan.com
- Country
- China
- ProdList
- 54987
- Advantage
- 58
- Tel
- 021-50795510 4000665055
- sy-c5@accelachem.com
- Country
- China
- ProdList
- 10120
- Advantage
- 58
- Tel
- 19588588067 19588588067
- 19588588067@163.com
- Country
- China
- ProdList
- 9741
- Advantage
- 58
- Tel
- +86-852-30606658
- market18@leapchem.com
- Country
- China
- ProdList
- 43340
- Advantage
- 58
View Lastest Price from 4-hydroxynaphthalene-2-sulphonic acid manufacturers
- Product
- 4-hydroxynaphthalene-2-sulphonic acid 3771-14-0
- Price
- US $1.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 20t
- Release date
- 2024-07-14