Name:C.I.Mordant Black 37,C.I.57010
Molecular Structure: naphthoquinone class
Molecular Weight: 190.15
CAS Registry Number:475-38-7
Manufacturing Methods : 1,8-Dinitronaphthalene and 1,5-Dinitronaphthalene mixture or both alone and one of sulfur 40% fuming sulfuric ACID reaction, the product (5, 8 – dihydroxy – naphthoquinone) into Sulfurous acid hydrogen salt.
Properties and Applications: ash red to black. Soluble in water for red light brown, soluble in ethanol for yellow brown, with green fluorescence. In concentrated sulfuric acid to dark yellow green, heating to rouge red, dilution after brown black precipitation. Dye aqueous solution to join sodium hydroxide to red, the air oxidation into blue.
|Standard||Ironing Fastness||Light Fastness||Fulling||Persperation Fastness||Soaping||Water|
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Alizarine Black S( Badische Anilin-und Soda Fabrik )