| |
Tri Phenyl Phosphite (TPP) is a clear liquid, used
as a performance additive to improve the colour and clarity of alkyd
resin, unsaturated polyester resin and various industrial oils during
their manufacture.
The manufacture of various resins involves the
use of high temperatures, usually in excess of 150° C. At these
temperature the reaction mass tends to get coloured due to oxidation.
Tri Phenyl Phosphite acts as an anti-oxidant and prevents colour
formation of the finished product, as a result of which better quality
resins are obtained.
| Industry |
Uses |
| Paint, Coating, Ink |
Used as stabilizer |
| Polymers (including) Adhesives, Styrenics, Engineering, Thermoplastics,
Polymers |
Used to regulate Viscosity and improve colour stability |
| Polyolefins |
Used as catalyst |
| Polyurethane hot melt adhesives, SBR Rubber, Epoxies |
Used to prevent scorching during curing and improve colour
stability |
| Pharmaceutical Intermediate |
Used in Manufacture of 3-C-7 ACCA, Cephalosporin Drugs and
Cefexime Formulation |
| Parameters |
TPP |
| Structure |
(
C6H5O)3 P |
| CAS
No |
(101-02-0) |
| Category |
Stabilizer |
| Form |
Clear,
colorless to faint yellow Liquid |
| Color |
50 Apha Max |
| Specific
gravity at 25 °C |
1.180-1.186 |
| Acidic
Value, mg KOH / gm |
0.5
max |
| Refractive
Index at 25
°C |
1.580-1.589. |
| Phosphorous
Content % |
9.8-10.1
|
| Freezing
point
°C |
22-24 |
|
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