Chemical name:

Isodecyl diphenyl phosphite


specialty products, specialty additives

Markets and applications:

building & construction, other applications, CASE, adhesives, coatings, elastomers, paints & coatings, plastics, polymer additives, transportation, other applications


antioxidants, heat stabilizers, thermal & processing stabilizers




PCC Rokita SA Phosphorus Chemistry Business Unit

CAS No.:



Rostabil series - phosphite antioxidants - due to an unique protection of the polymer degradation through its processing and entire life are considered as one of the most efficient co-stabiliziers group. The main role of these additives is to: protect the resin from heat aging, preserve its appearance from discoloration/yellowing, maintain its strength, stiffness or flexibility, extend its lifetime. As secondary antioxidants they are often used as synergists in combination with phenolic antioxidants.

Alternative names:

Show alternative names
DPDP; phosphorous acid, isodecyl diphenyl ester; diphenylisodecyl phosphite; phosphite; phosphite ester; organophosphite; organophosphorous compound; alkyl-aryl phosphite; (Hide)


stabilizer antioxidant anti-ageing degradation prevention degradation counteraction degradation decomposition ageing discoloration yellowing yellowness yellowness index oxidation induction time accelerated ageing colour change stability multiple processing polymers cross-linking synergist synergy synergism secondary additive secondary additive co-stabilizer phenolic stabilizers additive phenolic stabilizers synergist stearic stabilizers additive calcium stearate zinc stearate barium stearate long chain fatty acids salts higher fatty acids salts mixtures thermal process processing functional properties phosphorus derivatives phosphite thermal stability plastic additives plastics aid PVC PCW polyvinyl chloride poly(vinyl chloride) soft hard dry blends powders granules masterbatches epoxy resins epoxides polyester resins polyesters acrylic resins acrylates vinyl ester resins vinyl esters sprays coatings
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