NILE 
CHEMICALS
THIOBARBITURIC ACID
| 
         SPECIFICATION  | 
    |
| Reagent for Sorbic Acid | |
| C4H4N2O2S M.W. 144.15 | |
| Minimum assay ( acidimetric, on | |
| dried substance ) | 99% | 
| IR Spectrum | passes test | 
| pH ( 1% water ) | 1.7 - 1.9 | 
| TLC Test | passes test | 
| Loss on drying | 1% | 
| Suitability as reagent for sorbic acid | passes test | 
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