Antioxidant H /N N-Diphenyl-p-phenylenediamine CAS 74-31-7

1. Antioxidant H (Chemical name: N,N'-Diphenyl-p-phenylenediamine) is primarily used as an antioxidant and antiozonant in rubber and elastomer products, such as tires, hoses, and belts, to prevent degradation from heat, oxygen, and ozone.
2. N N-Diphenyl-p-phenylenediamine CAS 74-31-7 serves as a stabilizer and anti-aging additive in lubricants, greases, and synthetic oils to inhibit oxidation and extend service life.
3. Antioxidant H functions as a polymerization inhibitor in certain monomer systems and as a chemical intermediate in the synthesis of dyes and specialty materials.

1. Store Antioxidant H in a cool, dry, well-ventilated area, protected from light and moisture, in tightly sealed containers away from incompatible materials.
2. Keep N N-Diphenyl-p-phenylenediamine CAS 74-31-7 separate from strong oxidizing agents, strong acids, and reactive chemicals to prevent hazardous reactions or decomposition.
3. Handle Antioxidant H with care to minimize dust generation; ensure containers are clearly labeled and kept closed when not in use.

1. Immediately isolate the spill area and ensure adequate ventilation; carefully contain the spill to prevent Antioxidant H dust from becoming airborne.
2. Collect spilled Antioxidant H using a clean, dry tool or a HEPA-filter vacuum cleaner, and place it into a suitable, sealable container for disposal.
3. Clean N N-Diphenyl-p-phenylenediamine CAS 74-31-7 the contaminated surface thoroughly with a suitable detergent and water; collect all contaminated materials and dispose of them in accordance with local regulations for chemical waste.

1. Antioxidant H may cause skin irritation, serious eye irritation, and respiratory tract irritation upon exposure to dust or aerosols.
2. N N-Diphenyl-p-phenylenediamine CAS 74-31-7 can be harmful if swallowed or inhaled, and prolonged or repeated exposure may cause damage to specific organs or lead to skin sensitization.
3. Always consult the Safety Data Sheet (SDS) for specific hazard information and wear appropriate personal protective equipment (PPE), including dust masks, safety goggles, gloves, and protective clothing.