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China, Chinese High Purity Large Stock Dye Intermediate P-Phenylenediamine CAS 106-50-3 on Sale1 Industrial Products Supplier Manufacturer Details, price list catalog:
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Chemical Auxiliary CatalystTextile Auxiliary AgentP-PhenylenediamineP-Phenylenediamine Factory
Hubei Highwin New Material Technology Co., Ltd
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Product Description Product DescriptionIntroduction to p-Phenylenediamine (PPD)P-Phenylenediamine is an important aromatic diamine compound. Its molecular structure consists of two amino groups symmetrically connected at either end of a benzene ring (chemical formula: C6H4(NH2)2). Due to the high reactivity of the amino groups and the stability of the benzene ring, it has become a key raw material in the chemical, materials, and industries. However, due to its specific safety properties, its use requires strict control and regulatory approval. I. Core Basic InformationChemical IdentifierChinese Name: p-Phenylenediamine (1,4-phenylenediamine)English Name: p-Phenylenediamine, 1,4-PhenylenediamineCAS Number: 106-50-3Customs Code: 2921519090 (Classified under "m- and p-phenylenediamines and their derivatives and salts")Molecular Weight: 108.14 g/molMain Physical and Chemical Properties(Based on the previously detailed analysis, the core characteristics are summarized here)Appearance: Pure product is white to pale purple flakes/needles. Industrial product is often light brown (contains impurities) and readily oxidizes and changes color (gradually changing from pink to dark brown) in the presence of air.Solubility: Sparingly soluble in cold water, readily soluble in hot water, ethanol, ether, and other polar solvents.Melting Point/Boiling Point: Melting Point 138-140°C, Boiling Point Stable at high temperatures up to 267°C.Chemical Activity: The amino group is susceptible to oxidation and can undergo acid-base reactions (salt formation), condensation reactions (polymer synthesis), and coupling reactions (dye preparation). The benzene ring is susceptible to electrophilic substitution.II. Core ApplicationsThe application of p-phenylenediamine is highly dependent on its chemical activity, with core applications concentrated in the following areas:Dye Industry (Main Application)As a key intermediate for azo dyes, disperse dyes, and direct dyes, it is used to synthesize dark dyes such as black and brown. It is widely used in dyeing textile fibers (cotton, wool, polyester), leather, and paper. It is also a core component of hair dyes (permanent hair dyes), achieving the desired dyeing effect by reacting with oxidants to produce colored substances.Rubber IndustryUsed in the production of rubber antioxidants (such as Antioxidant H and 4010NA), it effectively inhibits hardening and cracking of rubber due to oxidation, light exposure, and heat aging, thereby extending the service life of rubber products such as tires, seals, and conveyor belts. Materials and PolymersIt condenses with diacids (such as adipic acid) to produce specialty polyamides (such as modified nylon 66) used in the manufacture of high-temperature-resistant, high-strength engineering plastics.It acts as a curing agent for epoxy resins, improving their bond strength and corrosion resistance, and is used in coatings, adhesives, and composite materials. Product Parameters Melting point 139 °CBoiling point 267 °C(lit.)density 1.135 g/cm3 (20oC)vapor density 3.7 (vs air)vapor pressure 1.08 mm Hg ( 100 °C)refractive index 1.6339 (estimate)Fp 156 °Cstorage temp. 2-8°Csolubility Soluble in alcohol, ether and hot benzene.pka4.17(at 25oC)form Powder or FlakesColour Index 76060color White, gray, or purple to brownPH9 (50g/l, H2O, 20oC)PH RangeNonQ uorescence (3.1) to orange/yellow Q uorescence (4.4)Water Solubility 47 g/L (25 oC)BRN 742029Exposure limitsTLV-TWA 0.1 mg/m3 (ACGIH 1989); TWA skin 0.1 mg/m3 (MSHA and OSHA); IDLH 25 mg/m3 (NIOSH); carcinogenicity: Animal Inadequate Evidence (IARC). .Stability:Stable, but oxidizes when exposed to air. Incompatible with oxidizing agents. Store under inert atmosphere. Detailed Photos Packaging & Shipping Company Profile Hubei Highwin New Material Technology Co., Ltd. focuses on the research and development, production and sales of epoxy resin and other chemical raw materials. We have our own R&D laboratory, by ordinating our suppiers all over the world and manufacturing products with cooperated based factories, we're keeping enhance our competitiveness in the market. Before developing overseas sales, we have been rooted in chemical raw materials for more than 20 years and have already been one of the top suppliers in China after years of efforts. There are a group of hard-working, motivated, and creative staff working not only for the company but also for you--our respectable customer and partner! Based on good service and high-quality products, we're widely praised and trusted by customers and keep long-lasting relationships with them. R&D Center FAQQ:How to get a sample, is it free?A:You can contact our sales staff through REQUEST and they will arrange sample shipment for you. We can provide you with free samples, you only need to pay for the shipping cost. For regular customers, sample fee and shipping fee are covered by us!Q:How can I trust you? How long have you been in this field(Chemical raw material)?A:Our owner has over 20 years of experience in the chemical raw materials field as well as our staffs. It is because of the trust of our customers and partners that we have been able to exist and develop for so many years. Our ever-lasting vision is to 'Obtain a wide range of customer resources through high-quality procurement and the best service, and establish a sustainable and stable customer relationship'!Q: Can you offer any other services?A:Yes! If you learn that there are very competitive products in China that are not within the scope of our display, we'd love to help you find quality resources. It's our honor to provide a one-stop purchasing service for you!Q:How do you guarantee the quality of your products?A:All of our products comply with national testing standards and international standards. If you need, we can provide you with certificates.Q: Can you use customer-specific labeling and packaging?A: Of course, you can provide us with the specified labeling and packaging and we will be happy to follow up with you.assist you. If there is anything else you need, please feel free to communicate with us!Q: How about the delivery time?A: We can’t give you the exact time because of different locations, but we can guarantee that we will ship your order as soon as possible after you place it and we will keep an eye on the logistics to remind you to receive the goods.
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