Tri-iso-octyl Phosphate(TOP)
Chemical formula and molecular weight
Chemical formula:C24H51O4P
Molecular weight:434.64
CAS No.:78-42-2
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.
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 |
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.
Pls contact us to get COA and MSDS. Thanks.