Direct Red 28 CAS No.573-58-0

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25 Kilogram

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Product Description

Product Attributes
Supply Ability & Additional Information
Packaging & Delivery

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Overview

Product Attributes

Model No.: Dyrect Congo Red 4B

Supply Ability & Additional Information

Packaging: 25Kgs/Carton

Packaging & Delivery

Selling Units:: Kilogram

Package Type:: 25Kgs/Carton

Congo Red 4B Red 28 573-58-0 Yellowish Red Direct Dyes

Dyrect	C.I. Direct	CAS No.	Characteristics
Congo Red 4B	Red 28	573-58-0	Yellowish Red

Properties and Applications

Yellow light red. Tan powder. Soluble in water for yellow light red solution, soluble in ethanol for orange, soluble in acetone. In the strong sulfuric acid as dark blue, diluted into shallow blue, blue precipitation. Dyes to acetic acid solution for blue purple, have red light blue precipitation; Add thick sodium hydroxide solution for yellow. This product acid resistance and sun fastness is poor. The acid, alkali is very sensitive. Cellulose fiber of dyeing, the dye absorption rate as well, a 80 ° C affinity when the largest. This article covers the gender is good, hard to sensitive. Dyeing copper ions in colored light yellow dark; Iron ion in a yellow light. Mainly used in viscose, such as cotton, wool, silk cellulose fiber dyeing and not used in printing, also can be used for biological and pulp color.

Standard	Acid Resistance	Alkali Resistance	Light Fastness	Soaping		Water
Standard	Acid Resistance	Alkali Resistance	Light Fastness	Fading	Stain	Fading	Stain
ISO	1	3	1	2		2
AATCC	1	3	2	1		3

Product Categories : Dyes > Direct Dyes

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