Para-Phenylenediamine (PPD)
Para-phenylenediamine (PPD) is a critical aromatic diamine used extensively as an oxidative hair dye intermediate and as a bifunctional building block for high-performance azo dyes, engineering polymers, and rubber antiozonants. Its two amino groups enable unique dye structures including bis-azo dyes and reactive dyes with excellent wash fastness. Chemzip supplies PPD in technical and refined grades for the dye and cosmetic industries.
Teknik Özellikler
| appearance | White to pale purple crystalline powder |
| purity (%) | ≥99.0 |
| moisture (%) | ≤0.3 |
| melting point (°C) | 140–143 |
Uygulama Alanları
- Oxidative hair dye and cosmetic colorant intermediate
- Bis-azo dye synthesis for high wash-fastness textiles
- Reactive dye intermediate for cotton and polyamide
- Aramid fiber (Kevlar) monomer precursor
- Rubber antiozonant and antioxidant (IPPD, 6PPD derivatives)
Ürün Özellikleri
- High purity ≥99.0% critical for cosmetic-grade hair dye applications
- Tightly controlled color specification prevents off-shade dye batches
- Nitrogen-flushed packaging prevents oxidative discoloration during storage
- Full SDS and regulatory documentation provided for global export
