P-Phenylenediamine(p-Phenylenediamine),also known as Urs D,is one of the simplest aromatic diamines and a widely used intermediate.It can be used to prepare azo dyes and high molecular polymers.It can also be used to produce fur stains,rubber antioxidants and photo developers.In addition,p-phenylenediamine is also a commonly used sensitive reagent for testing iron and copper.P-phenylenediamine is an extremely important dye intermediate,mainly used in aramid,azo dyes,sulfur dyes,acid dyes,etc.

　　P-phenylenediamine:output 3000 tons

　　Packing specification:25 50 125 kg

　　Technical advantage:Cuihua hydrogenation production technology,high quality and stable output

　　Environmental protection advantages:clean process,no pollution

　　ISO common name:O—phey1enediamine diamine

　　Chemical name:1,4-——Diaminobenzene 1,4-phenylenediamine

　　English name:P-phenyIene diamine:1,4-diaminobenzene

　　Molecular formula:C6H8N2

　　Molecular weight:108.14

　　Relative density(20℃):1.14

　　Melting point:147℃

　　Boiling point:267℃

　　Flash point:155℃

　　Maximum allowable concentration in air:5mg/m3

　　Vapor pressure:0.14kPa(100℃)

　　Vapor pressure:320Pa(100℃)

　　Crude product:Milky white flake crystal Purity:99.5%

　　Boutique:white flake whiteness 60 purity:99.9%

　　Soluble in alcohol,ether,benzene,slightly soluble in water