Acid Red 18(CAS 2611-82-7)

Acid Red 18

Name:C.I.Acid Red 18,C.I.16255

Molecular Structure: Single azo class

C.I.Acid Red 18,C.I.16255,CAS 2611-82-7,604.48,C20H11N2Na3O10S3,Acid Scarlet 121,Acid Scarlet 2R,Acid Scarlet 3R,Acid Scarlet BR,Acid Scarlet R,Acid Brilliant Red 4R

Molecular Formula:C₂₀H₁₁N₂Na₃O₁₀S₃

Molecular Weight: 604.48

CAS Registry Number:2611-82-7

Manufacturing Methods : 4-Aminonaphthalene-1-sulfonic acid diazo, and 7-Hydroxynaphthalene-1,3-disulfonic acid coupling.

Properties and Applications:  red. Red powder. Soluble in water red, slightly soluble in ethanol and soluble fiber element, insoluble in other organic solvents. Strong sulfuric acid in purple, will the red orange is diluted; Nitric acid solution in yellow. Its water solution and strong hydrochloric acid red, add sodium hydroxide is brown. Mainly used for wool, silk, polyamide fiber and its blended fabric dyeing, also can be used for leather, paper, plastic, wood, medicine and cosmetics of dyeing, still can make the ink.