| C. I. Hue Name | Solvent Red 23 | 
      
        | C. I. Number | 26100 | 
      
        | Chemical Class | DISAZO | 
      
        | Hue | Yellowish Red Powder | 
      
        | Physical Appearance | Dark Red Orange | 
      
        | PH | 7 To 8 | 
      
        | Molecular Weight | 352 | 
      
        | Solubility | Insoluble In Benzene, Soluble In Ethanol And
        Acetone, Very Soluble In Benzene | 
      
        | Lovibond Tintometer Reading 0.002% Colour In Benzene In 1/4 Inch Cell
 | Yellow 2.5 ± 0.3 Red 8.6 ± 0.3
 | 
      
        | Lead Contents | Less Than 20 PPM | 
      
        | Arsenic Contents | Less Than 2 PPM | 
      
        | Heavy Metal Contents | Less Than 100 PPM | 
      
        | Free Amine Contents | Less Than 200 PPM | 
      
        | Loss On Drying | 0.30% | 
      
        | Ash Content | 0.16% | 
      
        | Fastness
 |  | 
      
        | Light | Good | 
      
        | Heat : Melting Point 
  : Stable To | 195°C 70°C
 | 
      
        | Water | Insoluble | 
      
        | Effect Of 5% NA2CO3 | Unaffected | 
      
        | Effect Of 5% HCL | Unaffected | 
      
        | Material Supplied As | Heavy Paper Bags/ M.S. Drums/HDPE Carboys Inside
        Double Polythelene Bags 
 
 | 
      
        | Uses | Mainly Oils, Fats And Waxes Also In Alcoholic,
        Ester And Hydrocarbon Solvents. Occasionally In Polystyrene Also Used In
        Cosmetics & as an Indicator. |