6-Amino-1-naphthalenesulfonic acid
- Product Name
- 6-Amino-1-naphthalenesulfonic acid
- CAS No.
- 81-05-0
- Chemical Name
- 6-Amino-1-naphthalenesulfonic acid
- Synonyms
- D ACID;DAHL'S ACID;2-Naphthylamine-5-sulfonicaci;2-NAPHTHYLAMINE-5-SULFONIC ACID;6-Aminonaphthalene-1-sulfonicaci;2-AMINO-5-NAPHTHALENESULFONIC ACID;2-AMINONAPHTHALENE-5-SULFONIC ACID;BETA-NAPHTHYLAMINE-5-SULFONIC ACID;6-aminonaphthalene-1-sulfonic acid;6-AMINO-1-NAPHTHALENESULFONIC ACID
- CBNumber
- CB3782572
- Molecular Formula
- C10H9NO3S
- Formula Weight
- 223.25
- MOL File
- 81-05-0.mol
6-Amino-1-naphthalenesulfonic acid Property
- Density
- 1.3588 (rough estimate)
- refractive index
- 1.6500 (estimate)
- storage temp.
- under inert gas (nitrogen or Argon) at 2–8 °C
- form
- powder to crystal
- pka
- -0.33±0.40(Predicted)
- color
- White to Light yellow to Light red
- Water Solubility
- 0.33g/L(20 ºC)
- Merck
- 14,6407
- CAS DataBase Reference
- 81-05-0(CAS DataBase Reference)
Safety
- RIDADR
- 1759
- HazardClass
- 8
- PackingGroup
- III
- HS Code
- 29269095
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
- Precautionary statements
-
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P280Wear protective gloves/protective clothing/eye protection/face protection.
N-Bromosuccinimide Price
- Product number
- A0347
- Product name
- 6-Amino-1-naphthalenesulfonic Acid
- Purity
- >97.0%(HPLC)(T)
- Packaging
- 25g
- Price
- $66
- Updated
- 2024/03/01
- Product number
- A0347
- Product name
- 6-Amino-1-naphthalenesulfonic Acid
- Purity
- >97.0%(HPLC)(T)
- Packaging
- 500g
- Price
- $555
- Updated
- 2024/03/01
- Product number
- A576808
- Product name
- 6-Amino-1-naphthalenesulfonic Acid
- Packaging
- 2.5g
- Price
- $75
- Updated
- 2021/12/16
- Product number
- L196
- Product name
- 2-Aminonaphthalene-5-sulfonicacid
- Packaging
- 1g
- Price
- $21
- Updated
- 2021/12/16
- Product number
- CHM0021583
- Product name
- 2-NAPHTHYL AMINE 5-SULFONIC ACID
- Purity
- 95.00%
- Packaging
- 1G
- Price
- $597.87
- Updated
- 2021/12/16
6-Amino-1-naphthalenesulfonic acid Chemical Properties,Usage,Production
Chemical Properties
2-Aminonaphthalene-5-sulfonic acid [81-05-0]. (6-aminonaphthalene-1-sulfonic acid), Dahl’s acid, Dressel acid, D acid, C10H9NO3S, Mr 223.24, crystallizes from water as needles although only 0.4 % soluble at 100℃. The sodium, calcium, and barium salts are moderately soluble in water. Bromination in acetic acid gives the 1-bromo derivative. Sulfonation with oleum gives a mixture of 2-aminonaphthalene-5,7-disulfonic acid together with some 1,5-disulfonic acid. Fusion with potassium hydroxide at 260℃ yields 6-amino-1-naphthol.
Production Methods
Tobias acid is added to a mixture of sulfuric acid and oleum, and the reaction is completed by stirring for 12 h at 25℃. The resulting sulfonation mass, containing mainly 2-aminonaphthalene-1,5-disulfonic acid, is poured into water and heated at 105℃ for 3 h to desulfonate and precipitate the product which, after cooling, is filtered off; the yield is 95 %.
6-Amino-1-naphthalenesulfonic acid Preparation Products And Raw materials
Raw materials
Preparation Products
6-Amino-1-naphthalenesulfonic acid Suppliers
View Lastest Price from 6-Amino-1-naphthalenesulfonic acid manufacturers
- Product
- 2-aminonaphthalene-5-sulfonic acid 81-05-0
- Price
- US $30.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 20 tons
- Release date
- 2023-03-15
- Product
- 6-Amino-1-naphthalenesulfonic Acid 81-05-0
- Price
- US $0.00-0.00/KG
- Min. Order
- 1KG
- Purity
- 99.0%+
- Supply Ability
- 100 tons
- Release date
- 2019-12-30
- Product
- 6-Amino-1-naphthalenesulfonic acid 81-05-0
- Price
- US $2.00/KG
- Min. Order
- 1KG
- Purity
- 98%
- Supply Ability
- 100g , 1kg, 5kg , 50kg
- Release date
- 2020-01-07