IPPD

IPPD

IPPD (N-Isopropyl-N'-phenyl-p-phenylenediamine) is a chemical compound commonly used as an antioxidant in rubber products. It is a member of the class of compounds known as phenylenediamines, which are used to protect rubber from oxidation and ozone.

Chemistry

IPPD is a para-phenylenediamine, where one of the hydrogen atoms on each nitrogen atom is replaced by an isopropyl group and a phenyl group, respectively. This gives IPPD its antioxidant properties, as the phenyl groups can donate electrons to free radicals, neutralizing them and preventing them from damaging the rubber.

Uses

The primary use of IPPD is in the rubber industry, where it is used as an antioxidant to prevent the oxidation and degradation of rubber. It is particularly effective at protecting rubber from the damaging effects of ozone, which can cause cracking and other forms of degradation. IPPD is also used in the manufacture of tires, belts, hoses, and other rubber products.

Safety

IPPD is a skin and respiratory sensitizer, meaning it can cause allergic reactions in some people. It is also toxic to aquatic life. As such, it is important to handle IPPD with care and to prevent it from entering the environment.

See also

• Antioxidant
• Phenylenediamine
• Rubber