| 
    
XYLENOL ORANGE  | 
    
SPECIFICATION SHEET  | 
    
| PRODUCT | XYLENOL ORANGE | 
| CAS NO | 3618 - 43 - 7 | 
| TESTS | RESULTS | 
| Appearance | Blackish violet powder | 
| Solubility 0.1%(0.1N NaOH) | Clear reddish violet solution | 
| Absorptivity 1% 1cm, at | 613 | 
| l max.577.0nm | |
| Loss on drying at 105OC(1hr) | 2.42% |