NILE
CHEMICALS
NILE
CHEMICALS
|
BENZOIC ACID EXTRA PURE |
|
| C7H6O2 M.W. 122.12 | |
| Assay ( by acidimetry ) | 99.5 - 100.5% |
| Melting point | 121.5 - 123.5OC |
| pH ( Saturated solution ) | 2.5 - 3.5 |
| Maximum Limits Of Impurities : | |
| Sulphate ( SO4 ) | 0.02% |
| Heavy metals ( as Pb ) | 0.001% |
| Asenic ( As ) | 0.0002% |
| Copper ( Cu ) | 0.0025% |
| Lead ( Pb ) | 0.0005% |
| Zinc ( Zn ) | 0.0025% |
| Halogenated compounds ( chlorobenzoic acid) (as CI ) | 0.01% |
| Impurities oxidizable | passes test |
| Cinnamic acid | passes test |
| Polynuclear acids | passes test |
| Reaction against sulphuric acid | passes test |
| Water | 0.7% |
| Sulphated ash | 0.05% |