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Biphenyl (or diphenyl or phenylbenzene or 1,1′-biphenyl or lemonene) is an organic compound that forms colorless
crystals with a distinctively pleasant smell. The biphenyl molecule consists of two connected phenyl rings. Excellent properties of DYNOVA® Biphenyl include high purity, low sulfur and low chlorine contents. With the purity as high as 99.99%, DYNOVA® Biphenyl is widely used in pharmaceutical, farm chemical and electronic industries.
Name | Biphenyl |
CAS No. | 92-52-4 |
Molecular Formular | C12H10 |
Molecular Weight | 154.2 |
Appearance | White Crystal |
Origin | Jiangsu Zhongneng Chemical Technology Co., Ltd |
Package | Paper, Plastic Bag or ISO Tank |
Storage | Stored in dry and ventilative place. |
Keep away from fire, high temperature and oxidizing agent. |
Item | Value | Unit |
Apperance | White Crystal | |
Color | ≤20 | Hazen |
Purity (GC) | ≥99.9 | % |
Sulfur | ≤3 | mg/kg |
Chlorine | ≤3 | mg/kg |
Item | Value | Unit |
Molecular Weight | 154.2 | |
Relative Density (20/4℃) | 1.041 | |
Flash Point | 113 | ℃ |
Crystallization Point | 69 | ℃ |
Viscosity (100℃) | 0.98 | mm2/s |
Solubility Parameters (25℃) | 19.383 | (J/cm3)0.5 |
Heat of Evaporation (200℃) | 343 | kJ/kg |
Heat of Fusion (70.5℃) | 18.59 | kJ/mol |
Refractive Index (nD77) | 1.588 |
Organic Synthesis
Biphenyl is the basic material to produce crucial intermediates which are used to manufacture top grade optical brightener. Optical brighteners are chemical compounds that absorb light in the ultraviolet and violet region of the electromagnetic spectrum, and re-emit light in the blue region by fluorescence. These additives are often used to enhance the appearance of color of fabric and paper, causing a "whitening" effect.
Biphenyl is used to produce benzophenone photoinitiator which creates reactive species (free radicals, cations or anions) when exposed to radiation (UV or visible). Synthetic photoinitiators are key components in photopolymers.
Biphenyl is also used to produce P-EPQ which is the phosphite ester anti-oxidant.
Medical Intermediate
Highly purified biphenyl is the crucial raw material to synthesize many medical intermediates which are used to treat rheumatic arthritis, osteoarthritis, toothache, postoperative pain and etc.
Lithium Battery
Biphenyl is an additive used in lithium-ion battery electrolyte to prevent overcharging.
With the purity of 99.99%, DYNOVA® biphenyl is widely use in lithium battery manufacturing.
Heat Transfer Fluid
Biphenyl is also used to produce heat transfer fluids based on its good thermal stability and low vapor pressure performance.
Liquid Crystal Electronic
Biphenyl liquid crystal is one of the mostly used liquid crystal materials so far as it has excellent light stability and chemical stability.
Manufacturing
