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p-phenylenediamine
Sign in to saveAlso 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.
Chemical data
- Formula
- C6H8N2
- Molecular weight
- 108.14 g/mol
- IUPAC name
- benzene-1,4-diamine
- SMILES
- C1=CC(=CC=C1N)N
- InChIKey
- CBCKQZAAMUWICA-UHFFFAOYSA-N
- XLogP
- -0.3
- Polar surface area
- 52 Ų
- H-bond donors
- 2
- H-bond acceptors
- 2
- Formal charge
- 0
via PubChem
Research
3,845 papersvia PubMed
Wikidata facts
- Subclass of
- phenylenediamine
- Has part
- carbon
- Mass
- 108.06874825599999
- Has use
- dye
Show 15 more facts
- ionization energy
- 6.89
- monomer of
- Twaron
- chemical formula
- C₆H₈N₂
- canonical SMILES
- Nc1ccc(N)cc1
- NIOSH Pocket Guide ID
- 0495
- immediately dangerous to life or health
- 25
- melting point
- 146
- boiling point
- 267
- vapor pressure
- 1
- flash point
- 312
- solubility
- 4
- time-weighted average exposure limit
- 0.1
- subject has role
- allergen
- safety classification and labelling
- Regulation (EC) No. 1272/2008
- Commons category
- 1,4-Diaminobenzene
via Wikidata · CC0
~5 min read
Encyclopedic overview
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:
Excerpted from Wikipedia’s “p-phenylenediamine” article, available under the CC BY-SA 4.0 licence.