p-Phenylenediaminepesticide CAS NO.106-50-3

Also known as Ursi D, it is one of the simplest aromatic diamines. The pure product is white to lavender crystal, which turns purple or dark brown when exposed to the air. Slightly soluble in cold water, soluble in ethanol, ether, chloroform and benzene. It can be used to prepare azo dyes, high molecular polymers, and can also be used to produce fur dyes, rubber antioxidants and photo developers. It is mainly used for aramid, azo dyes, sulfur dyes, acid dyes, and can also be used as fur black D. Production of fur blue black DB, fur brown N2, and rubber antioxidants DNP, DOP and MB. It is also used as raw material for cosmetic hair dye Ursi D series, gasoline polymerization inhibitor and developer. As a chemical dye, p-phenylenediamine is currently allowed to be used in the production of hair dyes, but there are clear restrictions on the amount of use. According to my country's "Cosmetics Hygiene Chemicalbook Specifications", the content of p-phenylenediamine in hair dyes shall not exceed 6%. A

Chemical Properties White to lavender crystals. Turns purple or dark brown when exposed to air. Soluble in water, ethanol, ether, chloroform and benzene. Usage: It is an important dye intermediate, mainly used in the manufacture of azo dyes and sulfur dyes. It can also be used in the production of fur black D and rubber antioxidant DNP. It is used as a fluorescent indicator, analytical reagent and fur dye. It is also used in dyes. The synthetic use is mainly used in the manufacture of azo dyes and sulfur dyes, and is also used in the production of Fur Black D, Fur Blue Black DB, Fur Brown NZ, and rubber antioxidants DNP, 288, DOP, and DBP. Para-phenylenediamine is also used as raw material for cosmetic hair dye Ursi D, gasoline polymerization inhibitor and developer. Usage: Mainly used for fur dyeing. It can also be dyed together with other dyes. It is often used as a mordant.