Name:C.I.Mordant Red 45,C.I.58230
Molecular Structure: anthraquinones
Molecular Weight: 256.21
CAS Registry Number:6486-93-7
Manufacturing Methods : (a) in the presence of Boric acid, with fuming sulfuric acid oxidation 1,2-Dihydroxyanthracene-9,10-dione , and hydrolysis; (b) 5,6-Dihydroxy-9,10-dioxo-9,10-dihydroanthracene-1-sulfonic acid and sodium hydroxide reaction; (c) 1,5-Dihydroxyanthracene-9,10-dione with Sodium nitrate and Sodium hydroxide or had better use Sodium hydroxide and Potassium hydroxide mixture for oxidation.
Properties and Applications: bordeaux (aluminum), dark purplish red (chromium). Soluble in ethanol and Acetic acid glacial. In concentrated sulfuric acid to dark purple, dilution after yellow orange precipitation; In concentrated sulfuric acid Boric acid added to blue.
|Standard(cotton)||Ironing Fastness||Light Fastness||Fulling||Persperation Fastness||Soaping||Water|
List of Suppliers:
Brilliant Alizarine Bordeaux R ( Bayer Group )