Antioxidant DPD


Antioxidant DPD chemical name Diisodecyl Pentaerythritol Diphosphite is a No free phenol residue, environmentally friendly phosphite antioxidant.



Antioxidant dpd is mainly can be applied in PVC as an environmental-friendly stabilizer and it can improve the transparency and temperature resistance properties of PVC products. It doesn’t contain any free phenol and the phenolic product isn’t generated after hydrolysis or degradation. It is the phosphite antioxidant which has not have phenol completely.
DPD can be used in polymers such as unsaturated resins, saturated resins, polyester polyol, epoxy resins etc. It can protect the color during the polymer synthetic process and improve the heat stability of the polymer in the latter period of the reaction.

Chemical Name:

Diisodecyl Pentaerythritol Diphosphie
CAS No.:26544-27-4


Liquid antioxidant at normal temperature, ease of handling
No free phenol residue, environmentally friendly
Active phosphorus content ≥12%, less dosage
Pentaerythritol spiro structure, excellent thermal resistance
Outstanding color improvement and long-term stability


Appearance  Clear liquid
Assay, % ≥ 98.50
Acid Value(mgKOH/g) < 0.5
Refractive Index (25C) 1.4750-1.4920
Specific Gravity (25 C) 1.02-1.10


Handling and Safety: 

For additional handling and toxicological information, please consult us for Maternal Safety Date Sheet.


25 or 200kgs per drum.