Author name: PolyblueChem Team

Buying Antioxidant 168 (Irgafos 168): What Matters Antioxidant 168 (CAS 31570-04-4) is a commodity-scale polymer additive, but two suppliers offering the same headline assay can differ in the parameters that actually matter — transmittance, free DTBP, acid value and hydrolytic stability. Because the material is a moisture-sensitive phosphite, buying it well means specifying those parameters

Antioxidant 168 and Irganox 1010: How Phosphite and Phenolic Antioxidants Work Together In polymer stabilisation, the two most important antioxidants are of fundamentally different types. Antioxidant 168 (Irgafos 168, a phosphite) is a secondary antioxidant; Irganox 1010 (a hindered phenol) is a primary antioxidant. Used together, they form the stabiliser system behind an enormous share

Buying Antioxidant 7PPD: What Matters Antioxidant 7PPD (CAS 3081-01-4) is a liquid rubber antiozonant, and buying it well means getting the identity right, matching the specification to the compound, and securing the documentation that goes with a hazardous industrial chemical. This guide sets out what to check. For the chemistry and applications behind these points,

7PPD vs 6PPD: An Overview 6PPD and 7PPD are the two best-known members of the substituted p-phenylenediamine (PPD) family of rubber antiozonants. They look similar, do the same job, and are often discussed together — but they are different substances with different CAS numbers, different alkyl groups, different ketone feedstocks and, increasingly, different regulatory profiles.