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Pigment Red 54

Catalog Number DYE-PIG-0469
CAS Number 6373-10-0
Synonyms Pigment Bordeaux BLC
Molecular Weight 378.4
Molecular Formula C20H14N2O4S
Alternative CAS 1325-00-4
CI Number C.I.14830:1
Color Slightly soluble in water for titian
Lightfastness Good
Main Molecular Structure Single azo
Oleic Acid Well
Preparation Method Naphthalen-1-amine diazotization, with 5-Hydroxynaphthalene-1-sulfonic acid coupling, and then translate into calcium salt.
Properties In concentrated sulfuric acid for blue, dilution after red precipitation; In concentrated nitric acid for orange brown solution. In concentrated sulfuric acid for cherry red, dilution after brown light red precipitation; In 10% sodium hydroxide solution slightly soluble, for yellow; In the potassium hydroxide ethanol solution for dark brown light red. Pigment solution to join concentrated hydrochloric acid red precipitation; Join concentrated sodium hydroxide solution have brick red precipitation
Soap Micelle Bleeding Bleeding

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