p-Phenylenediamine (Synonyms: Paraphenylenediamine,PPD or PPDA )is primarily used as a dye intermediate and as a dye (e.g., hair dyes and dyes used for dyeing furs), as well as a photographic developing agent and a chemical intermediate. p-Phenylenediamine is also used as a vulcanization accelerator and as an antioxidant in rubber compounds. p-Phenylenediamine occurs as a white to slightly red solid or crystals that darken on exposure to air; it is slightly soluble in water.
Molecular formula: C6H8N2
Molecular weight: 108.4
Appearance: off-white agglomerated crystal or powder
Melting point: 138.5 degree C min.
Assay: 99.5% min.
Packing: 25 kgs, 50 kg in metal pail.