| BENZIL | |
| Specification | For : Benzil |
| Test | Specification |
| DESCRIPTION | LIGHT YELLOW CRYSTALS |
| MELTING POINT | LIMIT: 93° C TO 96° C |
| SOLUBILITY | PASSES IN ETHANOL |
| TLC | PASSES IN SINGLE SPOT |
| Extra Tests Performed On Benzil | |
| In 50 % Solution of Caustic Soda | No suspended impurity seen after half an hour of string (clear water white solution) |
| In Susphuric Acid | 0.10 gms in 5 ml shows light yellow colour for the hour (no green colour or blue colour found) |
| BENZILIC ACID | |
| Specification | For : Benzilic Acid |
| CAS NO | 76- 93- 7 |
| MOLECULAR FORMULA | C14H12O3 |
| MOLECULAR WEIGHT | 228.24 |
| SYNONYM | HYDROXY PHENYLBENZENE ACETIC OR DIPHENYLALYCOLIC ACID |
| Test | Specification |
| DESCRIPTION | ALMOST WHITE CRYSTALLINE POWDER ODOURLESS TASTE BITTER |
| MELTING POINT | LIMIT 148° c TO 150° c |
| SOLUBILITY | SLIGHTLY SOLUBLE IN COLD WATER, HIGHLY SOLUBLE IN HOT WATER, ALCOHOL, ETHER |
| ASSAY | LIMIT: MIN. 98.0% |
| LOSS OF DRYING | LIMIT: MAX. 1.0% |
| SULPHATED ASH | LIMIT: MAX. 0.1% |
| CHLORIDE (Cl) | LIMIT: MAX.0.01% |
| SULPHATE (SO4) | LIMIT: MAX 0.02% |
| BENZOIN | |
| Specification | For : Benzoin |
| CHEMICALS NAME | ACETOPHENONE, 2-HYDROXY-2-PHENYL OR ETHANONE, 2-HYDROXY-1, 2-DIPHENYL OR A-HYDROXY-A-PHENYLACETOPHENONE |
| CAS NO. | 119-53-9 |
| FORMULA | C14H1202 |
| Test | Specification |
| DESCRIPTION | CREAMISH CRYSTALLINE |
| SOLUBILITY | SOLUBLE IN ACETONE |
| MELTING POINT | LIMIT 132 ° C to 136 ° C |
| TLC | COMPLIES (SINGLE SPOT) |
| CHROMATOGRAPHY PURITY | |
| Single Maximum Impurity | Limit : Max. 1 % |
| Total Impurity | Limit : Max. 3 % |
| Loss on Drying w/w | Limit Max. 1% |
| Assay (by G.C) | Above 97% |
