CHLUMIAO®DTDP CAS 36432-46-9

BIS (TRIDECYL) HYDROGEN PHOSPHITE

CAS No. 36432-46-9

Application Instructions

An environmentally friendly Diane phosphite ester antioxidant, featuring low volatility and excellent hydrolysis resistance. It can be widely used in polymers such as PVC, rubber, plastic and oil products. As an efficient auxiliary stabilizer and chelating agent, it is used in soft/hard PVC materials to effectively improve their processing thermal stability and light stability, and maintain the color stability and transparency of the products. It is an efficient antioxidant for rubber materials such as ABS, SBS, SIS and SEBS. Suggested addition amount: 0.1-2.0%

Description

Packaging specification

180KG iron drum

Application

PVC, ABS, SBS, SIS, SEBS, lubricating oil

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Low Impurity Phosphites
CHLUMIAO® DPOP CAS 15647-08-2 2-ethylhexyl diphenyl phosphite
CHLUMIAO® 8621 CAS 68123-00-2 Antioxidant 8621
CHLUMIAO® DPDP CAS 26544-23-0 Antioxidant DPDP
CHLUMIAO® PDDP CAS 25550-98-5 Antioxidant PDDP
CHLUMIAO® PDOP CAS 3164-60-1 Antioxidant PDOP
CHLUMIAO® TPP CAS 101-02-0 Antioxidant TPP
CHLUMIAO® Poly(dicyclopentadiene-co-p-cresol) CAS 68610-51-5 Poly(dicyclopentadiene-co-p-cresol)
CHLUMIAO® SEED CAS 42774-15-2 Antioxidant SEED / Omnistab LS 5519 / Light Stabilizer 856
Inhibited phenolic Antioxidants
CHLUMIAO® 264 CAS 128-37-0 Antioxidant 264 / Butylated hydroxytoluene
CHLUMIAO® 2,6-Di-tert-butylphenol CAS 128-39-2 2,6-Di-tert-butylphenol
CHLUMIAO® 300 CAS 96-69-5 Irganox 300 / Antioxidant 300
CHLUMIAO® 2246 CAS 119-47-1 Irganox 2246 / BNX 2246
CHLUMIAO® 1222 CAS 976-56-7 Antioxidant 1222 / Irganox 1222
CHLUMIAO® 702 CAS 118-82-1 Irganox 702 / Antioxidant 702 / Ethanox 702
CHLUMIAO® DBHQ CAS 88-58-4 Antioxidant DTBHQ
CHLUMIAO® MTBHQ CAS 1948-33-0 2-tert-butylhydroquinone聽 Industrial Grade
CHLUMIAO® 1076 CAS 2082-79-3 Irganox 1076 / Antioxidant 1076
CHLUMIAO® 1010 CAS 6683-19-8 Irganox 1010 / Antioxidant 1010
CHLUMIAO® 1330 CAS 1709-70-2 Irganox 1330 / Ethanox 330
CHLUMIAO® 1520 CAS 110553-27-0 Irganox 1520 / Antioxidant 1520
Phenol Free Phosphites Antioxidants
CHLUMIAO® 8608 CAS 26544-27-4 Antioxidant AO DPD / Everaox 202
CHLUMIAO® 430 CAS 36788-39-3 Antioxidant 430 / WESTON 430
CHLUMIAO® 8608T CAS 1334238-11-7, 69439-68-5 Antioxidant 8608T
CHLUMIAO® 8627 CAS 68610-62-8 Antioxidant 8627
CHLUMIAO® TDP CAS 25448-25-3 Antioxidant TDP
CHLUMIAO® TLP CAS 3076-63-9 Antioxidant TLP
CHLUMIAO® TOP CAS 301-13-3 Antioxidant TOP
CHLUMIAO® TTDP CAS 77745-66-5 Antioxidant TTDP
Thiol esters Antioxidants
CHLUMIAO® DLTDP CAS 123-28-4 Dilauryl thiodipropionate
CHLUMIAO® DSTDP CAS 693-36-7 istearyl thiodipropionate/ Antioxidant DSTDP
Aminic Antioxidants
CHLUMIAO® 3114 CAS 27676-62-6 Irganox 3114 / Antioxidant 3114
CHLUMIAO® 4,4′-biphenol CAS 92-88-6

4,4′-biphenol

Metal deactivators Antioxidants
CHLUMIAO® 1098 CAS 23128-74-7 Irganox 1098 / Antioxidant 1098

Antioxidant DTDP Application scenarios

1. Polyolefin (PP/PE) Processing and Long-Term Stabilization:

In PP and PE, it synergistically works with hindered phenols (such as Irganox 1010) to inhibit thermo-oxidative degradation during high-temperature extrusion/injection molding, protecting molecular weight and mechanical properties. Suitable for food packaging films, thin-walled injection molded parts, automotive bumpers, etc. Addition amount: 0.1%–0.3%, compliant with FDA food contact standards.

2. PVC Heat Stabilization and Anti-Yellowing:

Suitable for rigid PVC (pipes, profiles, sheets) and flexible PVC (films, artificial leather, cable materials), it inhibits HCl release and thermal decomposition during high-temperature processing, reducing yellowing and embrittlement. Combined with metal soaps and epoxy stabilizers, it can improve long-term heat resistance and weather resistance. Addition amount: 0.1%–0.3%.

3. Engineering Plastics Thermo-Oxidative Aging Reinforcement:

Compatible with elastomers and engineering plastics such as ABS, PC/ABS, SBS, and SBR, it prevents thermo-oxidative aging and metal ion-catalyzed degradation, improving product toughness and crack resistance. Often used in synergy with hindered phenolic antioxidants in automotive interior parts, appliance housings, and sporting goods, with an addition level of 0.2%–0.4%.

4. Polyurethane (PU) Full-Chain Antioxidant Protection:

Used in PU flexible/rigid foams, elastomers, adhesives, and coatings, it inhibits the formation of polyol peroxides, preventing foaming core burning and product yellowing, improving processing thermal stability and long-term aging resistance. Addition level is 0.2%–0.4%. Suitable for automotive seats, insulation boards, and shoe materials when combined with hindered phenolic antioxidants.

5. Anti-aging Protection for Elastomers and Rubber:

Used in EPDM, NBR, neoprene rubber, etc., as an antioxidant and metal passivator, preventing thermo-oxidative aging and catalytic degradation by metals such as copper and iron. Improves the fatigue resistance and service life of outdoor/high-temperature products such as sealing strips, hoses, and tires. Additive dosage: 0.3%–0.6%.

6. Long-term Protection for Wire and Cable Insulation Materials:

Chelates metal ions, inhibiting their catalytic oxidation of cross-linked PE, PVC, EVA, and other insulation layers. Suitable for power cables, communication cables, and automotive wiring harnesses, improving long-term aging resistance and insulation reliability, especially suitable for copper core cables and high-temperature applications. Additive dosage: 0.2%–0.4%.

7. Stabilizes Coating and Adhesive Systems:

Prevents pre-crosslinking of solvent-based/water-based coatings and UV-curing adhesives during storage and curing, improves the weather resistance of alkyd resins and acrylic coatings, avoids coating delamination and gelation, suitable for outdoor architectural coatings, automotive refinish paints, industrial adhesives, etc., with an addition amount of 0.1%–0.3%.

8. Synergistic Blending of Polymer Anti-aging Systems:

Synergistically combines with hindered phenols, thioether antioxidants, and light stabilizers to construct a highly efficient anti-aging system, improving the material’s weather resistance, heat resistance, and yellowing resistance. Suitable for harsh environments such as outdoor building materials (plastic doors and windows, railings), automotive exterior parts, etc. The blending ratio is optimized according to the material and application scenario.

9. Food Contact Material Compliance and Stability:

Low toxicity properties comply with FDA and other relevant standards. Used in food contact grade PVC, PP, PE, PU, ​​and other materials, such as food packaging films, seals, and containers, ensuring no harmful substance migration during processing and use. Addition levels are strictly controlled within 0.1%–0.3%.

10. Auxiliary Applications in Fine Chemical Synthesis:

Used as a peroxide scavenger, reducing agent, or catalyst ligand in organic synthesis, participating in selective reactions of pharmaceutical intermediates and specialty chemicals, reducing side reactions, ensuring the purity and yield of target products, and suitable for synthesis scenarios requiring strict control of oxidative impurities.

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