1 | Description | Transparent, colourless, mobile, volatile liquid, having a characteristic odour and a slightly bitter taste. Is flammable. Clear, colourless liquid. | Transparent, colourless, mobile, volatile liquid, having a characteristic odour and a slightly bitter taste. Is flammable. Clear, colourless liquid |
2 | Solubility | Complies | Miscible with water, with alcohol, with methanol, with ether & with chloroform. |
3 | Relative density, 20°C | 0.786 | 0.785 to 0.788 |
4 | Refractive index (20°C ± 0.5°C) | 1.377 | 1.376 to 1.378 |
5 | Identification by IR | Complies | IR spectra of the sample should be concomitant with IR spectra of the corresponding standard. |
6 | Identification (By GC Chromatogram) | Complies | The retention time of the major peak of sample solution corresponds to the 2-propanol peak of the system suitability standard solution, as obtained in the assay. |
7 | Specific gravity, 25°C | 0.784 | Between 0.783-0.787 |
8 | Identification (Limit of Methanol) | Not detected | NMT 0.02% |
9 | Assay (GC) | 99.9% | Not less than 99.0% |
10 | UV absorbance profile (10mm cell) @ 230nm | 0.144 | NMT 0.30 |
11 | UV absorbance profile (10mm cell)@250nm | 0.049 | NMT 0.10 |
12 | UV absorbance profile (10mm cell)@270nm | 0.010 | NMT 0.03 |
13 | UV absorbance profile (10mm cell)@290nm | 0.004 | NMT 0.02 |
14 | UV absorbance profile (10mm cell) @ 310nm | 0.000 | NMT 0.01 |
15 | Absorbance (Between 230 nm - 310 nm) | Complies | The spectrum shows a steadily descending curve with no observable peaks or shoulders |
16 | Benzene and related substances, (Benzene) | Not detected | NMT 2 ppm |
17 | Benzene and related substances, (Total impurity apart from 2-butanol) | 0.04% | NMT 0.3% |
18 | Limit of Volatile Impurities (Methanol) | Not detected | NMT 0.02% |
19 | Limit of Volatile impurities (Individual Known impurity ethyl ether) | Not detected | NMT 0.1% |
20 | Limit of Volatile impurities (Individual Known impurity acetone) | 0.001% | NMT 0.1% |
21 | Limit of Volatile impurities (Individual Known impurity diisopropyl ether) | Not detected | NMT 0.1% |
22 | Limit of Volatile impurities (Individual Known impurity 1-propanol) | 0.003% | NMT 0.1% |
23 | Limit of Volatile impurities (Individual Known impurity 2-butanol) | Not detected | NMT 0.1% |
24 | Limit of Volatile impurities (Individual unspecified impurity) | 0.03% | NMT 0.1% |
25 | Limit of Volatile Impurities (Total impurities) | 0.05% | NMT 1.0% |
26 | Acidity | Complies | Not more than 1.4ml of 0.01 mol/L sodium hydroxide VS is required. |
27 | Peroxides | Complies | No colour develops |
28 | Non-volatile matter | 0.0008% | NMT 0.002% |
29 | Water (By KF) | 0.05% | NMT 0.2% |
30 | Clarity and colour of solution | Complies | The solution should be clear and colorless. |
31 | Water insoluble substances | Complies | The solution should maintain clear. |
32 | Readily oxidizable substances | Complies | The pink colour of the solution should not disappear completely. |
33 | Readily carbonizable substances | Complies | Any colour produced should not more intense than that of the reference solution Y1. |
34 | Carbonyl compounds | Complies | The dark red colour produce should not more intense than that of 0.50ml of the reference solution obtained in the same way. |