1 | Appearance/Description | Transparent, clear, colorless, mobile, volatile liquid. | Transparent, Clear, colourless, mobile, volatile liquid. |
2 | Solubility | Passes | Miscible with water, with alcohol, with ether & with chloroform and with ethanol(96%) |
3 | Identification A (By IR) | Complies | The infrared absorption spectrum of the sample exhibits maxima only at the same wave lengths as that of a Isopropyl alcohol reference standard or working standard. |
4 | Identification B (By Relative density, 20°C) | 0.786 | Between 0.785 and 0.789 |
5 | Identification C (By Chemical test) | Complies | The colour changes to blue. |
6 | Identification D (By Chemical test) | Complies | A White or yellowish white precipitate is produced with mercuric sulphate solution. |
7 | Identification E (By Chemical test) | Complies | Acetone, recognizable by its odour is evolved with dilute potassium dichromate solution and sulphuric acid. |
8 | Identification F (By refractive index, 20°C) | 1.377 | Between 1.377 and 1.378 |
9 | Identification G (By GC) | Complies | The retention time of the major peak of the sample solution corresponds to the 2-propanol peak of the system suitability solution, as obtained in the Assay. |
10 | Specific gravity, 25°C | 0.784 | Between 0.783 and 0.787 |
11 | wt per ml | 0.786g | Between 0.782g and 0.786g |
12 | Refractive index,20° C | 1.377 | Between 1.377 and 1.378 |
13 | Appearance of solution | Passes | A). The substance to be examined is clear and colourless. B). Sample ( 1 in 20) is clear after 5 minutes. |
14 | Limit of volatile impurities (Each individual impurity) | 0.01% | Not more than 0.1% |
15 | Limit of volatile impurities (Total impurity) | 0.02% | Not more than 1.0% |
16 | Acidity or Alkalinity | 0.3 mL of 0.01 M sodium hydroxide | Not more than 0.6 mL of 0.01 M sodium hydroxide is required to change the colour of the indicator to pale pink. |
17 | Absorbance at 230nm | 0.110 | 0.30 max. |
18 | Absorbance at 250nm | 0.026 | 0.10 max. |
19 | Absorbance at 270nm | 0.003 | 0.03 max. |
20 | Absorbance at 290nm | 0.001 | 0.02 max. |
21 | Absorbance at 310nm | 0.000 | 0.01 max. |
22 | Absorbance (Between 230 nm - 310 nm) | Passes | The spectrum shows a steadily descending curve with no observable peaks or shoulders. |
23 | Benzene and related substances, (Benzene) | Not detected | 2 ppm max. |
24 | Benzene and related substances, (Total impurity apart from 2-butanol) | 0.02% | 0.3% max. |
25 | Peroxides | Passes | No colour develops. |
26 | Non-volatile substances | 5 ppm | 20 ppm max. |
27 | Water | 0.078% | 0.1% w/w max. |
28 | Assay (GC) | 99.98% | Not less than 99.0% |
29 | Distillation range | 96.0% distil between 81°C and 83°c | Not less than 95.0% v/v distils between 81°C and 83°C |
30 | Aldehydes & ketones | Passes | Not more than 2.0 mL of 0.1 M Sodium hydroxide is required |
31 | Water insoluble matter | Passes | No opalescence is produced |
32 | Residual solvent (cyclohexane) | Not detected | 0.005% max. |
33 | Residual solvent(1-Propanol) | 0.002% | 0.2% max. |