Description and features
Rostabil DDPP (Diisodecyl phenyl phosphite) is a clear liquid which has C26H47O3P as chemical formula. It is an alkyl-aryl phosphite which finds its application as a color and processing stabilizer in ABS, polycarbonate, polyurethane, coatings and PET fiber where regulatory approval for food contact is not required. It can be used as a secondary stabilizer to improve color and heat stability in PVC.
Diisodecyl phenyl phosphite is also known as phosphorous acid diisodecyl phenyl ester and Phenyl diisodecyl phosphite.
Availability
Europe: Provided Rostabil DDPP is on stock in our local warehouses our lead time is about one week if delivered in 200 KG drums.
United States, Canada, South America, South Africa and other markets can also be served, please contact our sales department for more details.
This substance (CAS: 25550-98-5) has been registered (FULL) under REACH (EC) 1907/2006.
Product Identification
| CAS number | 25550-98-5 |
| EC number | 247-098-3 |
| HS code | 2920 90 85 |
| EC name | Diisodecyl phenyl phosphite |
Specification
| Appearance | Clear liquid @ 20 – 25 ºC |
| Acid Value | ≤0.1 (mg KOH/g) |
| Colour | ≤100 |
| Free phenol | ≤1.0 % |
Packaging
Available packaging: 200 KG drums.
Special packaging is available on request.
Storage
Store Diisodecyl phenyl phosphite in a cool, dry and well-ventilated area and in line with legal requirements.
Keep DDPP away from heat sources and oxidizing agents.
MSDS
A Material Safety Data Sheets (MSDS) is available for Rostabil DDPP and all other products supplied by Vesta Chemicals BV.
An MSDS describes the hazards of a product and explains how a product can be safely handled, used and stored. Besides it provides important regulatory and emergency response information for the purchased product.
Molecular and structural information
| Molecular formula | C26H47O3P |
| Molecular weight | 438.64 g/mol |
| Smiles notation | P(=O)(Oc1ccccc1)(OCCCCCCCC(C)C)OCCCCCCCC(C)C |
| InChi key | JTNKWPDPEXRFOV-UHFFFAOYSA-N |
| Structural formula |  |
Physicochemical information
| Boiling point | 478.99 °C |
| Flash point | 296.30 °C |
| Melting point | 90.17 °C |
| Partition coefficient (log Pow) | 9.32 @ 25 °C |
| Relative density | 0.94 – 0.96 @ 20 g/ml |
| Refractive index | 1.4800 – 1.4860 @ 20 ºC |
| Solubility in water | 0.182 mg/l |
| Specific gravity | 0.930 – 0.950g/m3 (25 ºC/15 ºC) |
| Vapour pressure | 0.0076 Pa @ 25 °C |