6522-74-3

Basic information

• Product Name: Reactive Orange 1
• Synonyms: 7-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-4-hydroxy-3-[(2-sulphophenyl)azo]naphthalene-2-sulphonic acid;EINECS 229-412-0;Reactive brilliant orange X-GN y-3-[(2-sulfophenyl)azo]- 7-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-4-hydroxy-3-[(2-sulfophenyl)azo]-2-naphthalenesulfonic acid;(3E)-7-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-4-oxo-3-[(2-sulfophenyl)hydrazinylidene]naphthalene-2-sulfonic acid;Reactive orange 1 (C.I. 17907);2-Naphthalenesulfonic acid, 7-[(4, 6-dichloro-1, 3, 5-triazin-2-yl)amin-o]-4-hydroxy-3-[(2-sulfophenyl)azo];2-Naphthalenesulfonic acid, 7-((4,6-dichloro-1,3,5-triazin-2-yl)amino)-4-hydroxy-3-(2-(2-sulfophenyl)diazenyl)-;7-((4,6-Dichloro-1,3,5-triazin-2-yl)amino)-4-hydroxy-3-((2-sulphophenyl)azo)naphthalene-2-sulphonic acid
• CAS NO: 6522-74-3
• Molecular Formula: C₁₉H₁₂Cl₂N₆O₇S₂
• Molecular Weight: 571.37058
• EINECS: 229-412-0
• Mol File: 6522-74-3.mol
• Article Data: 1

Chemical Properties

• Appearance: /
• Density: 1.88 g/cm³
• Refractive Index: 1.798
• CAS DataBase Reference: Reactive Orange 1(CAS DataBase Reference)
• NIST Chemistry Reference: Reactive Orange 1(6522-74-3)
• EPA Substance Registry System: Reactive Orange 1(6522-74-3)

Safety Data

• Hazardous Substances Data: 6522-74-3(Hazardous Substances Data)

Usage

Description

Reactive Orange 1 is a bright orange dye that appears as a yellow light red powder. It has a solubility of 100 g/L at 50°C and exhibits good levelness in dyeing fibers in an alkaline medium within the temperature range of 20 to 40°C. The dye is resistant to alkaline hydrolysis but not to acid hydrolysis. In strong sulfuric acid, it turns red and becomes red-orange when diluted. In nitric acid, it turns orange and remains unchanged upon dilution. Its aqueous solution is orange, and upon the addition of sodium hydroxide, it turns a bit deep red. Further addition of insurance powder and warming results in a light yellow color, which cannot be reverted by the addition of sodium boric acid.

Uses

Used in Textile Industry:
Reactive Orange 1 is used as a dye for cotton, wool, silk, nylon, and viscose fiber yarns and fabrics. It is suitable for dyeing or disseminating, exhibiting high affinity. It is also used for direct and resist printing on viscose fabric.
Standard:
The light fastness, oxygen bleaching, perspiration fastness, and soaping of Reactive Orange 1 are rated as follows:
Light Fastness: ISO 4-5
Oxygen Bleaching: ISO 3
Perspiration Fastness: ISO 3-4
Soaping: ISO 4-5
Fading: ISO 3
Stain: ISO 3-4

Preparation

2-Aminobenzenesulfonic acid diazo, and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid?coupling, and then again with 2,4,6-Trichloro-1,3,5-triazine?condensation.

Standard

Light Fastness

Fading

Stain

ISO

4-5

InChI:InChI=1/C19H12Cl2N6O7S2/c20-17-23-18(21)25-19(24-17)22-10-5-6-11-9(7-10)8-14(36(32,33)34)15(16(11)28)27-26-12-3-1-2-4-13(12)35(29,30)31/h1-8,28H,(H,29,30,31)(H,32,33,34)(H,22,23,24,25)

Upstream product

• 108-77-0 1,3,5-trichloro-2,4,6-triazine 
• 22136-09-0 C₁₆H₁₃N₃O₇S₂ 

Relevant articles and documents

Triazinylaninlino-disazo dyes, methods of preparing them and their use for dyeing and printing fiber materials

The present writing relates to a novel fiber-reactive dye of the formula wherein R11, D, R0, X and Z are as defined in the specification. The novel dye according to the present writing can be used in dyeing and printing fibre materials, especially, cellulosic fibre materials by a general fixing method, and a good adsorbing/fixing rate and an excellent fastness to light and wet treatment.