| Description |
A clear, colourless or almost colourless, syrupy liquid; hygroscopic
|
Solubility |
Miscible with water and with ethanol (95%), slightly soluble in acetone; practically insoluble in ether and in fixed oils and volatile oils
|
| Identification |
Test C may be omitted if test A and B are carried out. Test A and B may be omitted if test C is carried out
|
Identification 'A' |
The spectrum of sample should be concordant with spectrum of standard
|
| Identification B (Refractive Index) |
1.470 to 1.475
|
Identification C (Relative density) |
1.258 to 1.268
|
| Appearance of solution |
Solution A should be clear and diluted solution should be colorless
|
Acidity or alkalinity |
The solution should be colourless and not more than 0.2 ml of 0.1 M sodium hydroxide should required to produce a pink colour
|
| Ester |
Not less than 8.0 ml of 0.1 M hydrochloric acid should be required to decolourise the solution
|
Halogenated compounds |
NMT 35 ppm
|
| Ethlylene glycol, diethylene glycol and related substances |
-
|
Ethylene Glycol |
NMT 0.1%
|
| Diethylene glycol (GC) |
NMT 0.1%
|
Any other secondary impurity |
NMT 0.1%
|
| Sum of all impurities |
NMT 1.0%
|
Sugars |
The solution should remain blue and no precipitate should be produced
|
| Assay (on anhydrous basis) |
98.0 – 101.0%
|