NILE 
CHEMICALS
1-AMINO-2-NAPHTHOL-4-SULPHONIC ACID
| 
       SPECIFICATION  | 
  |
| For determination of phosphates | |
| C10H9NO4S M.W. 239.25 | |
| Minimum assay | 98% | 
| Maximum Limits of Impurities : | |
| Sulphated ash | 0.5% | 
| Chloride ( Cl ) | 0.01% | 
| Sensitivity to phosphate | passes test | 
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