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Rostabil TPP (Triphenyl phosphite) is a clear liquid with has C18H15O3 as chemical formula. It is an organophosphite which provides excellent colour improvement and heat stability. It is used in ABS, polyethylene, polypropylene, polystyrene, polyester resins, epoxy resins and synthetic rubber. TPP is also known as Triphenyl phosphoric acid ester and Triphenoxyphosphine oxide. Availability Europe Rostabil TPP ( Trisnonylphenol phosphite) is on stock in our local warehouses our lead time is about one week if delivered in 225 KG drums. United States, Canada, South America, South Africa and other markets can also be served, please contact our sales department for more details. CAS number:101-02-0 EC number:202-908-4 HS code:2920 29 00 Acid Value:≤0.50 (mg KOH/g) Colour:≤50 Hazen Phenol:≤1.00 % Phosphorus:9.80 – 10.00 % Boiling point:386 °C @ 101.63 kPa Flash point:218.30 ºC Melting point:144 ºC Partition coefficient (log Pow):6.62 @ 25 ºC Refractive index:1.18 – 1,186 g/l @ 25 ºC Solubility in water:Insoluble (< 0.1 mg/l) Specific gravity:1.170 – 1.195 g/m3 (25 ºC / 15 ºC) Vapour pressure:0.0000763 mm Hg @ 25 ºC