1 | Appearance/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 ether & with chloroform and with ethanol (96%) |
3 | Identification (Relative density, 20°C) | 0.786 | 0.785 to 0.789 |
4 | Identification (By Refractive index, 20±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 standard |
6 | Identification (By chemical test) | Complies | The entire sulfuric acid layer should turn violet. |
7 | 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. |
8 | Identification (Limit of Methanol) | Not detected | NMT 0.02% |
9 | Assay (GC) | 99.97% | NLT 99.0% |
10 | UV absorbance profile (10mm cell) at 230nm | 0.173 | NMT 0.30 |
11 | UV absorbance profile (10mm cell) at 250nm | 0.063 | NMT 0.10 |
12 | UV absorbance profile (10mm cell) at 270nm | 0.012 | NMT 0.03 |
13 | UV absorbance profile (10mm cell) at 290nm | 0.006 | NMT 0.02 |
14 | UV absorbance profile (10mm cell) at 310nm | 0.002 | 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 2ppm |
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) | Not detected | 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) | 0.002% | 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) | 0.02% | NMT 0.1% |
25 | Limit of Volatile Impurities (Total impurities) | 0.03% | NMT 1.0% |
26 | Limit of Non-volatile residue | 8ppm | NMT 20ppm |
27 | Specific gravity, 25°C | 0.786 | Between 0.783 - 0.787 |
28 | Refractive index, 20°C | 1.377 | Between 1.376-1.378 |
29 | Acidity or Alkalinity | Complies | NMT 0.6ml of 0.01 M sodium hydroxide is required to change the colour of the indicator to pale pink. |
30 | Water (By KF) | 0.03% | NMT 0.5% |
31 | Peroxides | Complies | No colour developes |
32 | Appearance of solution | Complies | Solution of 1 ml sample in 20ml of water should be clear and colorless. |