3530-19-6

Basic information

• Product Name: DIRECT SCARLET B
• Synonyms: PONTAMINE SCARLET B;1,3-naphthalenedisulfonicacid,8-[[4’-[(4-ethoxyphenyl)azo][1,1’-biphenyl]-4-y;c.i.directred37;directscarlet;DIAMINE SCARLET B;CHLORAMINE RED B;DIRECT SCARLET B;AMIDINE SCARLET B
• CAS NO: 3530-19-6
• Molecular Formula: C30H22N4Na2O8S2
• Molecular Weight: 676.63
• EINECS: 222-560-7
• Mol File: 3530-19-6.mol
• Article Data: 0

Chemical Properties

• Boiling Point: °Cat760mmHg
• Flash Point: °C
• Appearance: /
• Density: 1.47 g/cm³
• Refractive Index: 1.688
• Storage Temp.: Amber Vial, Refrigerator, Under inert atmosphere
• Solubility: DMSO (Slightly), Methanol (Slightly), Water (Slightly)
• CAS DataBase Reference: DIRECT SCARLET B(CAS DataBase Reference)
• NIST Chemistry Reference: DIRECT SCARLET B(3530-19-6)
• EPA Substance Registry System: DIRECT SCARLET B(3530-19-6)

Safety Data

• Hazardous Substances Data: 3530-19-6(Hazardous Substances Data)

Usage

Description

DIRECT SCARLET B is a synthetic dye that belongs to the azoic class of dyes. It is characterized by its red color and is known for its solubility in water, slightly in alcohol, and acetone, and in soluble fiber elements. It is insoluble in other organic solvents. The dye exhibits different color characteristics when exposed to various chemical treatments, such as strong sulfuric acid, nitric acid, and strong hydrochloric acid. It also shows different levels of acid resistance, alkali resistance, light fastness, soaping, water fading, and stain fading.

Uses

Used in Textile Industry:
DIRECT SCARLET B is used as a dye for coloring textiles. Its red color and solubility properties make it suitable for various textile applications, providing vibrant and long-lasting color to fabrics.
Used in Water Treatment:
DIRECT SCARLET B is recognized as a water pollutant and is removed from water sources through chitin adsorption. This application helps in reducing the environmental impact of the dye and contributes to cleaner water sources.
Standard:
The performance of DIRECT SCARLET B in terms of acid resistance, alkali resistance, light fastness, soaping, water fading, and stain fading is measured using the ISO and AATCC standards. The ratings for these properties are as follows:
Acid Resistance: ISO 3-4, AATCC 3
Alkali Resistance: ISO 4, AATCC 5
Light Fastness: ISO 2, AATCC 2-3
Soaping: ISO 1-2, AATCC 1
Water Fading: ISO 1-2, AATCC 1
Stain Fading: Not specified
Stain: Not specified

Preparation

4-(4-Aminophenyl)benzenamine double nitriding, first and 7-Hydroxynaphthalene-1,3-disulfonic acid coupling, again with phenol coupling, and then in contain sodium carbonate in aqueous solution of ethanol heating, air pressure,Using Chloroethane to make phenol??hydroxy ethylated?.

Standard

Acid Resistance

Fading

Stain

ISO

3-4

AATCC

3

InChI:InChI=1/C30H24N4O8S2/c1-2-42-25-14-12-24(13-15-25)32-31-22-8-3-19(4-9-22)20-5-10-23(11-6-20)33-34-30-27(35)16-7-21-17-26(43(36,37)38)18-28(29(21)30)44(39,40)41/h3-18,33H,2H2,1H3,(H,36,37,38)(H,39,40,41)/b32-31+,34-30+