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Direct red 72

Product Name
Direct red 72
CAS No.
8005-64-9
Chemical Name
Direct red 72
Synonyms
Direct red 72;C.I.Direct Red 72:C.I.29200
CBNumber
CB21485433
Formula Weight
0
MOL File
Mol file
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Hazard and Precautionary Statements (GHS)

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Direct red 72 Chemical Properties,Usage,Production

Preparation

6-Aminonaphthalene-2-sulfonic acid diazo, and N,N’-bis(4-hydroxy-2-sulfonaphthalene-7-yl)urea coupling, O-Anisidine (0. 6 Moore) and O-Methylaniline (0.4 Moore) diazo, and coupled product matches.

Properties and Applications

red. Soluble in water for colourful red, soluble in ethanol is shallow orange red. The strong sulfuric acid to red light purple, diluted red brown to orange for brown. The dye solution to join strong hydrochloric acid for orange brown; With strong sodium hydroxide solution for red light brown to orange brown.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 4 5 3 1-2 1-2

Direct red 72 Preparation Products And Raw materials

Raw materials

Preparation Products

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