Alizarin Red (Alizarin S) R-R 0.2% in Ethanol

Chemical Name: Alizarin S, Alizarin Red

CAS Number: 72-48-0
EC Number: 200-783-3
Molecular Formula: C14H7NaO7S
Molar Mass: 360.26 g/mol

Physical and Chemical Properties

• Form: liquid (solution in ethanol)
• Color: red
• Odor: characteristic of ethanol
• pH Value: no data available (in ethanol solution)
• Solubility: readily soluble in ethanol, less soluble in water

Hazard Statements

H-Statements: H225 - Highly flammable liquid and vapor
P-Statements: P210 - Keep away from heat/sparks/open flames

Transport

• RID/ADR: 3, III
• UN: 1170 (Ethanol solution)

Composition and Purity

• Dye Concentration: 0.2%.
• Solvent: Ethanol (min. 96%)
• Solution Homogeneity: homogeneous liquid without suspension

Application

Indicator dye for complexometric analysis and titration of metal ions. It changes color depending on the presence of certain ions and the pH value of the solution.

Storage Conditions

Store in a sealed, labeled container protected from light and ignition sources. A cool and well-ventilated location is recommended.