Diphenyl ethers, which at constant temperatures are colourless crystals, are fragrances, insoluble in water, soluble in organic solvents such as alcohol, ether, acetic acid and benzene, at 26. 7°c, boiling point 259°c, flash point 115°c, relative density 1. 086 (20°c)。
Main uses
The mixture of pbdes, also known as “dowson”, obtained by mixing 73. 5 per cent of the diphenyl ether with 26. 5 per cent biphenyl, is used mainly as a conductor heat, a good high-temperature organic conductor, which is widely used in industrial sectors. The current performance of heat transfer and heat storage media in photovoltaic solar energy has become an important guarantee of long-term stabilization of electricity generation in today's optical-thermal power generation industry, with good heat stability, resistance to oxidation, heat transfer efficiency and so on, and has been trusted by many light-thermal enterprises。
The diphenyl ether, which is used as a spice, has a perfume that can be used in an appropriate mix with other substances and is applied in the spice composition of spices, soap, cosmetics, detergents and other hygiene products。
Organic synthetic raw materials, capable of synthesising diphenyl ether resins resistant to high temperatures, are also important raw materials for the manufacture of rubber, surfactants, flame retardants, blowing agents, etc。
Product packaging
200 kg drum or isotank
Typical data
Hue/black zone
12
Crystal point/°c
26. 8
Water/ %
0. 018
Pbde content/%
99. 99. 99
Phenol content/%
Unchecked
Total sulphur content/mg/kg
0. 61
Total chlorine content/mg/kg
3. 85
