Sulphur Blue 7 -Leuco

Sulphur Blue 7 -Leuco structure

CAS No.: 69900-21-6

Chemical Name:: Sulphur Blue 7 -Leuco

Synonyms: Leuco Sulfur Blue 7;Sulphur Blue 7 -Leuco;Diresul Liquid Navy GC;Leuco Sulphur Blue 7;C.I.Leuco Sulphur Blue 7;C.I. Leuco Sulfur Blue 7;Sodyesul Liquid Blue 8RCF;Leuco sulfur blue 7 (C.I. 53440);C.I.Leuco Sulphur Blue 7:C.I.53440;Phenol,4-[(4-amino-3-methylphenyl)amino]-, reaction products with sodium sulfide, leuco derivative

CBNumber:: CB1875616

Molecular Formula:

Molecular Weight:: 0

MDL Number:

MOL File:: Mol file

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Sulphur Blue 7 -Leuco Chemical Properties,Uses,Production

Preparation

4-(4-Amino-3-methylphenylamino)phenol with Sodium polysulfide solution in return 106 ~ 112 ℃ heating 50 hours, then 70 ~ 80 ℃ blow air make precipitation. This indophenol?is by o- Toluidine and 4-Nitrosophenol in sulfuric acid in the condensation, then use Sodium sulfide reduction and have to. Sodium sulfide increase in the proportion of sulfur content and high temperature vulcanization, color is red and more bright-coloured dye.

Properties and Applications

red light blue to blue light purple. Dark brown liquid. PH value is 13.3; Viscosity 5.9 x 10-3 pa s.; Settleability (3000 r.p.m.); No separation, no settlement. In the Sodium sulfide solution solubility is good, for green grey; In concentrated sulfuric acid for blue purple, dilution of dark after precipitation.

Standard	Acid Resistance	Alkali Resistance	Light Fastness	Fulling	Persperation Fastness	Soaping
Standard	Acid Resistance	Alkali Resistance	Light Fastness	Fulling	Persperation Fastness	Moderate	Severe
ISO	4	4-5	4-5	3-4(Alkali)	4-5	4	3
AATCC	5	5	5-6	4			4-5

Sulphur Blue 7 -Leuco Preparation Products And Raw materials

Raw materials

4-[(4-amino-m-tolyl)amino]phenol FENURON 4-Nitrosophenol

Preparation Products

Sulphur Blue 7 -Leuco Suppliers

Global( 1)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Dynasty Colourants Co., Ltd.	--	info@dynasty-color.com	China	3306	51

Supplier	Advantage
Dynasty Colourants Co., Ltd.	51

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Sulphur Blue 7

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Sulphur Blue 7 -Leuco Phenol, 4-[(4-amino-3-methylphenyl)amino]-, reaction products with sodium sulfide (Na2(Sx)), leuco derivs. Leuco Sulphur Blue 7 Phenol,4-[(4-amino-3-methylphenyl)amino]-, reaction products with sodium sulfide, leuco derivative Leuco sulfur blue 7 (C.I. 53440) C.I. Leuco Sulfur Blue 7 C.I.Leuco Sulphur Blue 7 Sodyesul Liquid Blue 8RCF Leuco Sulfur Blue 7 Diresul Liquid Navy GC C.I.Leuco Sulphur Blue 7:C.I.53440 69900-21-6