dye|World dye variety

Acid Red 20

Name:C.I.Acid Red 20,C.I.14830

Molecular Structure: Single azo class

C.I.Acid Red 20,C.I.14830,CAS 5858-53-7,400.38,C20H13N2NaO4S,Double Ponceau R

Molecular Formula:C₂₀H₁₃N₂NaO₄S

Molecular Weight: 400.38

CAS Registry Number:5858-53-7

Manufacturing Methods : Naphthalen-1-amine diazo, and 5-Hydroxynaphthalene-1-sulfonic acid coupling.

Properties and Applications: red. Slightly soluble in water for orange red. The strong sulfuric acid for blue, red after diluted precipitation; In nitric acid solution for orange brown.

Standard	Light Fastness	Soaping		Persperation Fastness	Oxygen bleaching		Fastness to seawater
		Fading	Stain		Fading	Stain	Fading	Stain
ISO	3	3	1-2	2	2		2-3

List of Suppliers:

Double Ponceau R( Bayer Group )

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This entry was posted on Wednesday, May 30th, 2012 at 6:56 am and is filed under Acid Dyes. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

2 Responses to “Acid Red 20”

1. Dye intermediates|Fluorescent Brightener|Pigment on December 3rd, 2012 at 3:09 am

   […] have blue light red precipitation; Join concentrated sodium hydroxide solution turn yellow. With C.I. Acid Red 20 chemical structure the same (calcium […]

2. Pigment Red 54 on November 28th, 2013 at 7:33 am

   […] have blue light red precipitation; Join concentrated sodium hydroxide solution turn yellow. With C.I. Acid Red 20 chemical structure the same (calcium […]

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