Chromate(3-), bis[3-[[4,5-dihydro-3-methyl-5-(oxo-κO)-1-phenyl-1H-pyrazol-4-yl]azo-κN1]-4-(hydroxy-κO)-5-nitrobenzenesulfonato(3-)]-, disodium hydrogen

CAS NO.：6408-27-1
Empirical Formula: C32H21CrN10NaO14S2-
Molecular Weight: 908.68
EINECS: 613-448-2

What is Chromate(3-), bis[3-[[4,5-dihydro-3-methyl-5-(oxo-κO)-1-phenyl-1H-pyrazol-4-yl]azo-κN1]-4-(hydroxy-κO)-5-nitrobenzenesulfonato(3-)]-, disodium hydrogen?

Preparation

3-Amino-4-hydroxy-5-nitrobenzenesulfonic acid diazo, and 3-Methyl-1-phenyl-1H-pyrazol-5(4H)-one coupling, and then and sulfuric acid chromium and chromium acid in aqueous solution heating, in 130 ℃ : maintain 6 hours, and make them into chromium complexation.

Properties and Applications

red light orange. Soluble in water for orange, soluble in ethanol, acetone, soluble fiber element, insoluble in other organic solvents. The strong sulfuric acid in dark green light for yellow, dilute for yellow orange after; In nitric acid solution by brown in a red light yellow; In strong hydrochloric acid for yellow solution; In 10% of sodium hydroxide solution without change. Used for wool, silk and polyamide fiber dyeing and such as direct printing.

Standard	Light Fastness	Soaping		Persperation Fastness	Oxygen bleaching		Fastness to seawater
Standard	Light Fastness	Fading	Stain	Persperation Fastness	Fading	Stain	Fading	Stain
ISO	6-7	4	4	3	3		4	4
AATCC	6	3	3	2-3	2-3		3-4	3-4

Safety information for Chromate(3-), bis[3-[[4,5-dihydro-3-methyl-5-(oxo-κO)-1-phenyl-1H-pyrazol-4-yl]azo-κN1]-4-(hydroxy-κO)-5-nitrobenzenesulfonato(3-)]-, disodium hydrogen

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