best sale chemical antioxidant ippd in mexico
best sale chemical antioxidant ippd in mexico
best sale chemical antioxidant ippd in mexico
best sale chemical antioxidant ippd in mexico
best sale chemical antioxidant ippd in mexico
  • Which PPD is most commonly used?
  • Among the various PPDs, N- (1,3-dimethylbutyl)-N’-phenyl- p -phenylenediamine (6PPD) and N-isopropyl-N’-phenyl-1,4-phenylenediamine (IPPD) are high-production-volume chemicals and the most frequently used . In 2020, China produced 200,000 tons of 6PPD, representing nearly 54% of the total production of rubber antioxidants .
  • What is the most effective anti-oxidant?
  • Specifically, L-AP, L-AA, 3,5-DTBA, and DTT increased the recovery to over 60%, with L-AA demonstrating the most significant effect. L-AA is widely recognized as a low-cost and potent antioxidant that captures free radicals such as 1 O 2 , . Consequently, L-AA was selected as the protective agent.
  • Why are 6PPD and IPPD only detected in shrimp?
  • Only 6PPD and IPPD were detected in shrimp. Section 3.2 shows that 6PPD, IPPD, 4-HDPA, and 4-ADPA were degraded more readily in fish and crab than in shrimp, which may explain why 6PPD and IPPD were only detected in shrimp.
  • Do p-phenylenediamine antioxidants oxidize during pretreatment?
  • There are relatively few reports on the content of p-Phenylenediamine antioxidants (PPDs) and their transformed products (TPs) in aquatic products. Quantifying PPDs, PPDQs, and other TPs is challenging owing to their tendency to oxidize and decompose during pretreatment, especially in organisms.