1327-69-1

Basic information

• Product Name: 2-Naphthalenesulfonic acid, 5(or 8)-amino-8(or 5)-[(4-hydroxyphenyl)amino]-, reaction products with sodium sulfide (Na2(Sx))
• Synonyms: 2-Naphthalenesulfonic acid, 5(or 8)-amino-8(or 5)-[(4-hydroxyphenyl)amino]-, reaction products with sodium sulfide (Na2(Sx));Sulphur Blue 15;Sulfur blue 15 (C.I. 53540);Sapphire blue CV;C.I.53540;Immedial Green Blue CV;Mitsui Sulphur Green CV;Calcogene Electric Blue CF
• CAS NO: 1327-69-1
• Molecular Weight: 0
• EINECS: 215-491-9
• Mol File: 1327-69-1.mol
• Article Data: 0

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 2-Naphthalenesulfonic acid, 5(or 8)-amino-8(or 5)-[(4-hydroxyphenyl)amino]-, reaction products with sodium sulfide (Na2(Sx))(CAS DataBase Reference)
• NIST Chemistry Reference: 2-Naphthalenesulfonic acid, 5(or 8)-amino-8(or 5)-[(4-hydroxyphenyl)amino]-, reaction products with sodium sulfide (Na2(Sx))(1327-69-1)
• EPA Substance Registry System: 2-Naphthalenesulfonic acid, 5(or 8)-amino-8(or 5)-[(4-hydroxyphenyl)amino]-, reaction products with sodium sulfide (Na2(Sx))(1327-69-1)

Safety Data

• Hazardous Substances Data: 1327-69-1(Hazardous Substances Data)

Usage

Description

2-Naphthalenesulfonic acid, 5(or 8)-amino-8(or 5)-[(4-hydroxyphenyl)amino]-, reaction products with sodium sulfide (Na2(Sx)) is a blue-gray powder that is slightly soluble in water, not soluble in alcohol and benzene, and soluble in sodium sulfide solution for olive. In concentrated sulfuric acid, it appears dark blue and forms a dark blue precipitate upon dilution. The dyeing content in alkaline insurance powder is dark yellow, which can be restored to its original color and luster after oxidation. However, it fades in sodium hypochlorite solution and turns dark blue when concentrated sulfuric acid is added.

Uses

Used in Textile Industry:
2-Naphthalenesulfonic acid, 5(or 8)-amino-8(or 5)-[(4-hydroxyphenyl)amino]-, reaction products with sodium sulfide (Na2(Sx)) is used as a dye for cotton, hemp, and viscose fiber dyeing and printing. It offers moderate acid resistance, severe alkali resistance, and light fastness rated ISO 3-4 and AATCC 5. It also has fulling, perspiration fastness, and soaping ratings of ISO 4, (Alkali) 4-5, and AATCC 3, respectively.

Preparation

8-Amino-5-(4-hydroxyphenylamino)naphthalene-2-sulfonic acid and aqueous Sodium polysulfide heating, in 107 ~ 108 ℃ under reflux 2 4 hours, will be part of the precipitation in the Sodium sulfide of dye solution, blowing air redeposition. This indophenol?is from 8-Amino-5-nitronaphthalene-2-sulfonic acid and where did 5-Aminonaphthalene-2-sulfonic acid and where did 4-Aminophenol with Sodium hypochlorite oxidation of mixture, then use Sodium sulfide reduction and have to.

Standard

Acid Resistance

Moderate

Severe

ISO

3-4

AATCC

5