2-Naphthylamine-5,7-disulfonic acid
2-Naphthylamine-5,7-disulfonic acid Basic information
- Product Name:
- 2-Naphthylamine-5,7-disulfonic acid
- Synonyms:
-
- 2-naftylamin-5,7-disulfonansodny
- 2-Naphthylamine-5,7-disulfonicaacid
- 6-amino-1,3-naphthalenedisulfonic
- 6-amino-3-naphthalenedisulfonicacid
- 6-aminonaphthalene-1,3-disulphonicacid
- 6-amino-naphthalene-3-disulfonicacid
- amino-iacid
- kyselinaamino-i
- CAS:
- 118-33-2
- MF:
- C10H9NO6S2
- MW:
- 303.31
- EINECS:
- 204-246-1
- Product Categories:
-
- Anilines, Aromatic Amines and Nitro Compounds
- Organic acids
- Intermediates of Dyes and Pigments
- Mol File:
- 118-33-2.mol
2-Naphthylamine-5,7-disulfonic acid Chemical Properties
- Boiling point:
- 568.34℃[at 101 325 Pa]
- Density
- 1.769±0.06 g/cm3(Predicted)
- vapor pressure
- 0Pa at 25℃
- pka
- -0.91±0.40(Predicted)
- Water Solubility
- 229g/L at 15℃
- LogP
- -1.85
- CAS DataBase Reference
- 118-33-2(CAS DataBase Reference)
- EPA Substance Registry System
- 1,3-Naphthalenedisulfonic acid, 6-amino- (118-33-2)
2-Naphthylamine-5,7-disulfonic acid Usage And Synthesis
Chemical Properties
White glossy long prismatic needle-like crystals, the crystals precipitated from water contain 5 molecules of crystal water. The solubility in water at 20°C is 23%. Its monosodium salt and monopotassium salt are commonly used in industry, both of which are soluble in water, and the salt solution has green fluorescence.
Uses
2-Naphthylamine-5,7-disulfonic acid is an intermediate for the preparation of J acid, bis-J acid, phenyl J acid and scarlet acid.
Hazard
Skin - Rabbit 2 mg/24h severe; Eye - Rabbit 0.75 mg/24h severe
Flammability and Explosibility
Not classified
Synthesis
2-Naphthylamine-5,7-disulfonic acid can be obtained by hydrolysis of 2-naphthylamine-1,5,7-trisulfonic acid. Add sulfuric acid, sodium sulfate and 2-naphthylamine-1,5,7-trisulfonic acid into water, keep warm at 110-120°C for 4 hours, cool and filter, and wash in sodium sulfate solution to obtain the product.
2-Naphthylamine-5,7-disulfonic acid Preparation Products And Raw materials
Raw materials
2-Naphthylamine-5,7-disulfonic acidSupplier
- Tel
- 18105366931
- creatpharm@163.com
- Tel
- 15610156652
- baimingshi@163.com
- Tel
- 400-0066400 13621662912
- sales@jonln.com
- Tel
- 010-82967028 13552068683
- 2355560935@qq.com
- Tel
- 025-83697070
- info@chemlin.com.cn
2-Naphthylamine-5,7-disulfonic acid(118-33-2)Related Product Information
- Dinonylnaphthalenesulfonic acid
- Sulfanilic acid
- Nickel bis(sulphamidate)
- 1-Naphthylamine
- Sulfamic acid
- Glycine
- Dioctyl sulfosuccinate sodium salt
- Dihydroergotoxine mesylate
- Sulfamic acid monosodium salt
- 2,4-Xylenesulfonic acid
- Sodium xylenesulfonate
- 4-Amino-benzenesulfonic acid monosodium salt
- Sodium diphenylamine-4-sulfonate
- 6-Aminocaproic acid
- Evans Blue
- 2-NAPHTHYLAMINE-5,7-DISULFONIC ACID DISODIUM SALT
- CHICAGO SKY BLUE 6B
- CHLORAZOL BLUE RW