1 | Appearance/Description | Transparent, clear, colorless, mobile, volatile liquid, having a characteristic odor. Is flammable. Clear, colourless liquid. | Transparent, clear, colorless, mobile, volatile liquid, having a characteristic odor. Is flammable .Clear, colourless liquid. |
2 | Solubility | Passes | Miscible with water, with alcohol, with ether & with chloroform and with ethanol (96%). |
3 | Identification (Relative density, 20°C) | 0.785 | 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 corresponding 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 reference 2-propanol standard. |
8 | Specific gravity, 25°C | 0.783 | Between 0.783-0.787. |
9 | Assay (By GC) | 99.92% | Not less than 99.0%. |
10 | UV absorbance profile (10mm cell) at 230nm | 0.126 | 0.30 max. |
11 | UV absorbance profile (10mm cell) at 250nm | 0.034 | 0.10 max. |
12 | UV absorbance profile (10mm cell) at 270nm | 0.010 | 0.03 max. |
13 | UV absorbance profile (10mm cell) at 290nm | 0.006 | 0.02 max. |
14 | UV absorbance profile (10mm cell) at 310nm | 0.006 | 0.01 max. |
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 | 2ppm max. |
17 | Benzene and related substances, (Total impurity apart from 2-butanol) | 0.09% | 0.3% max. |
18 | Acidity or Alkalinity | 0.4 mL of 0.01 M sodium hydroxide | Not more than 0.6 mL of 0.01 M sodium hydroxide should require to change the colour of the indicator to pale pink. |
19 | Peroxides | Complies | No colour developes. |
20 | Non-volatile substances | 5.3ppm | 20ppm max. |
21 | Water (By KF) | 0.048% | 0.5% max. |
22 | Limit of volatile impurities (Each individual impurity) | 0.08% | Not more than 0.1%. |
23 | Limit of volatile impurities (Total impurity) | 0.08% | Not more than 1.0%. |
24 | Appearance of solution | Passes | The sample should be clear and colorless. Solution of 1 mL sample in 20 mL of water should be clear. |