1 | Description | A white crystalline powder. | A white or yellowish white, crystalline powder. |
2 | Solubility | Complies | Practically insoluble in water, very soluble in acetone, freely soluble in alcohol and vegetable oils. |
3 | Identification A (by Freezing point) | 69°C | 69°C to 70°C |
4 | Identification B (by UV absorbance test) | 83 | The specific absorbance at the maximum (at absorbance maxima 278 nm) is 80 to 90. |
5 | Identification C (By IR) | Complies | IR Spectrum of substance to be examined must be concordant with the reference spectrum of butylahydroxytoluene WS. |
6 | Identification D (By Chemical test) | Complies | A blue color develops. |
7 | Appearance of Solution | Complies | The solution is clear and not more intensly coloured than reference solution Y5 or BY5. |
8 | Freezing point | 69°C | 69°C to 70°C |
9 | Related substances (by TLC) | Less than 0.5% | 0.5% max |
10 | Sulphated ash | 0.006% | NMT 0.1% w/w |
11 | Particle size | 100% passes through 60 mesh. | 100% must passes through 60 mesh |