Acid Green 4;C.I.Acid Green 4:C.I.410025;trisodium,iron(3+),3-nitroso-4-oxidonaphthalene-1-sulfonate;trisodium tris[4-hydroxy-3-nitrosonaphthalene-1-sulphonato(2-)-O3,O4]ferrate(3-)
Will on nitrosation 4-Hydroxynaphthalene-1-sulfonic acid, and then turn it into iron sodium salt.
Properties and Applications
yellow light green. Soluble in water for yellow-green solution. The strong sulfuric acid for yellow brown, after dilution is yellow, with Potassium ferricyanide blue precipitation. In water solution to join sodium hydroxide don’t change color.
Standard
Light Fastness
Soaping
Persperation Fastness
Oxygen bleaching
Fastness to seawater
Fading
Stain
Fading
Stain
Fading
Stain
ISO
6
3
4
3-4
3-4
4
Trinatriumtris[4-hydroxy-3-nitrosonaphthalin-1-sulfonato(2-)-O3,O4]ferrat(3-) Upstream-Materialien And Downstream Produkte