p-phenylenediamine
Also known as p-phenylene diamine, 4-aminoaniline, 1,4-diaminobenzene, 1,4-phenylene diamine, 1,4-benzenediamine, p-diaminobenzene, benzene-1,4-diamine, p-Diaminobenzene
'''p-Phenylenediamine (PPD''') is an organic compound with the formula C6H4(NH2)2. This derivative of aniline is a white solid, but samples can darken due to air oxidation. It is mainly used as a component of engineering polymers and composites like kevlar. It is also an ingredient in hair dyes and is occasionally used as a substitute for henna.
Research
3,845 papersvia PubMed
Article
9 sectionsContents
- Production
- Uses
- Precursor to polymers
- Dyeing
- Rubber antioxidant
- Other uses
- Safety
- See also
- References
'''p-Phenylenediamine (PPD''') is an organic compound with the formula C6H4(NH2)2. This derivative of aniline is a white solid, but samples can darken due to air oxidation. It is mainly used as a component of engineering polymers and composites like kevlar. It is also an ingredient in hair dyes and is occasionally used as a substitute for henna.
==Production== PPD is produced via three routes. Most commonly, 4-nitrochlorobenzene is treated with ammonia and the resulting 4-nitroaniline is then hydrogenated: