Cas no.: 106-50-3 einecs: 203-404-7
C6H8N2 Molecular weight: 108.14
Property: p-Phenylenediamine （PPD） is an organic compound with the formula C6H4(NH2)2. This derivative of aniline is a colorless solid when pure, but typically samples are partially oxidized and appear yellowish. p-Phenylenediamine （PPD） is mainly used as a component of engineering polymers and composites. p-Phenylenediamine （PPD） is an ingredient used in some hair dyes, though it may be a contact allergen.
Appearance White flakes
Melting Point /℃ ≥137.0
m-PDA(impurity) mg/kg ≤400
o-PDA(impurity) mg/kg ≤100
P-pda ≥ 99.9%
Usage: p-Phenylenediamine （PPD） is a precursor to aramid plastics and fibers such as Kevlar. This polymer arises from the reaction of p-Phenylenediamine （PPD）and terephthaloyl chloride. The reaction of p-Phenylenediamine （PPD） with phosgene gives the diisocyanate, a precursor to urethane polymers.
Other uses: p-Phenylenediamine （PPD） is easily oxidized, and for this reason p-Phenylenediamine （PPD） is used as antiozonants in production of rubber products. p-Phenylenediamine （PPD） is also used as a developing agent in the C-41 color photographic film development process, reacting with the silver grains in the film and creating the colored dyes that form the image.
p-Phenylenediamine （PPD） is used in almost every hair dye on the market, regardless of brand. The darker the colour, usually, the higher the concentrations. Some of the so-called "natural" and "herbal" hair colours, while ammonia-free, contain p-Phenylenediamine （PPD）. Some products sold as henna also contain p-Phenylenediamine （PPD） added, particularly so-called "black henna." In many cases, p-Phenylenediamine （PPD） causes allergic reaction, and can cause scarring in some people. p-Phenylenediamine （PPD） should never be applied directly to the skin in its pure form or mixed with anything else
Package and storage: 25kg in bag or fiber drum. Keep in the clear and dry storage shed.
Related: p-Phenylenediamine （PPD）, P-PDA. 1, 4-Benzenediamine; 1, 4-Diaminobenzene; C.I. 76060; Fur Black 41866
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Company Name: Chemland Group Inc
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