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Phosphoric Acid Esters
Ⅰ Chemical formula and molecular weight
●Chemical formula:C24H51O4P
●Molecular weight:434.64
●CAS No.:78-42-2
Ⅱ Properties and uses
●Colourless,transparent oily liquid,b.p.216℃（4mmHg）,viscosity 14 c.p.（20℃),refractive index 1.4434（20℃）.
●It is now chiefly used as a processing solvent,instead of hydroterpineol,for producing hydrogen peroxide by anthraquinone process. It is an ideal solvent in this process,for its low volatility and good extraction distribution coefficient.
●It is also a cold-resisting and fire-retarding plasticizer applied in ethylenic and cellulosic resins,synthetic rubbers. The cold resisting property is superior to adipate esters.
Ⅲ Quality standard
| Specification |
Super Grade |
First Grade |
|
Colourity（Pt-Co）,code No. ≤ |
20 |
30 |
|
Acid value,mgKOH/g ≤ |
0.10 |
0.20 |
|
Density,g/cm3 |
0.924±0.003 |
|
|
Content（GC）,% ≥ |
99.0 |
99.0 |
|
Dioctyl phosphate content（GC）,%≤ |
0.10 |
0.20 |
|
Octanol content（GC）,% ≤ |
0.10 |
0.15 |
|
Flash point,℃ ≥ |
192 |
190 |
|
Surface tension（20～25℃）,mN/m≥ |
18.0 |
18.0 |
|
Water content,% ≤ |
0.15 |
0.20 |
Ⅳ Package and storage,safety
●Packed in 200 liter galvanized iron drum,net weight 180 kg/drum.
●Stored at dry,shady,ventilated place. Prevented from collision and sunrays,rain-attack during handling and shipping.
●Met the high hot and clear fire or contact the oxidizing agent,caused the burning danger.
Page:Dioctyl Phosphate（P204）