
Diphenyl ether, which is a colorless crystal at room temperature, has aroma of geranium oil, insoluble in water, soluble in organic solvents such as alcohol, ether, acetic acid, benzene, etc., crystallization point is 26.7 ° C, boiling point 259 ° C, flash point 115 ° C, relative density of 1.086 (20 ° C).
Indicator name | index | ||
Superior grade | First grade | Qualified product | |
Chromaticity(platinum-cobalt) ≤ | 20 | 30 | 50 |
Crystallization point °C %≥ | 26.7 | 26.6 | 26.5 |
Moisture% ≤ | 0.03 | 0.04 | 0.05 |
Diphenyl ether content% %≥ | 99.9 | 99.5 | 99 |
Phenol content% ≤ | 0.005 | 0.01 | 0.02 |
Total sulfur mg/kg ≤ | 5 | 8 | 10 |
Total chlorine mg/kg ≤ | 8 | 20 | 40 |