Overview
Palladium chloride (PdCl₂) is an inorganic compound pivotal in industrial chemistry and materials science. As a coordination complex of palladium in the +2 oxidation state, it serves as a precursor to numerous catalytic systems. Its reactivity stems from the palladium center's ability to facilitate ligand exchanges, making it indispensable in cross-coupling reactions like Heck and Suzuki couplings. First synthesized in the 19th century, PdCl₂ is now mass-produced for global supply chains, with major manufacturers adhering to ISO standards for reagent-grade and industrial-grade material. The compound's versatility bridges pharmaceutical synthesis, electronics, and environmental technologies.
Physical and Chemical Properties
PdCl₂ crystallizes in a layered structure where each Pd²⁺ center is coordinated by four chloride ligands. This arrangement contributes to its moderate solubility in water (8.3 g/100 mL at 20°C) and enhanced solubility in concentrated hydrochloric acid due to tetrachloropalladate(II) ([PdCl₄]²⁻) formation. The compound decomposes at 679°C without boiling, releasing chlorine gas. Its hygroscopic nature necessitates strict moisture control during storage. When reduced (e.g., by H₂ or CO), PdCl₂ forms metallic palladium nanoparticles, a property exploited in catalytic applications and conductive ink formulations.
Main Applications
In the Wacker process, PdCl₂ catalyzes ethylene oxidation to acetaldehyde—a key step in vinyl acetate production. The electronics industry uses it for palladium electroplating of connectors and semiconductor components, ensuring corrosion resistance. Pharmaceutical manufacturers rely on PdCl₂-derived catalysts for API synthesis, particularly in carbon-carbon bond formations. Emerging applications include hydrogen sensors (where PdCl₂-coated electrodes detect H₂ via resistivity changes) and wastewater treatment (heavy metal recovery). Automotive catalysts also utilize PdCl₂ precursors in exhaust systems.
Safety and Storage
PdCl₂ requires OSHA-compliant handling with PPE (gloves, goggles, respirators for powder). Spills should be neutralized with sodium carbonate and contained to prevent environmental release. The compound's oxidizing nature mandates segregation from reductants and organic materials. Long-term storage demands amber glass or HDPE containers with desiccants, maintained at 15-25°C. Shelf life typically exceeds 2 years if unopened. Transportation follows UN3288 regulations for toxic solids (Packing Group III). Facilities must maintain SDS documentation per GHS standards.
B2B Procurement Guide
Industrial buyers should specify purity (99% for general use, 99.9%+ for catalysis), particle size (microns for dispersion applications), and chloride content (affects solubility). Bulk shipments (25kg drums) reduce costs by 20-30% compared to lab-scale packaging. Lead times vary: 2-4 weeks for standard grades, longer for custom modifications like stabilized aqueous solutions. Reputable suppliers provide batch-specific COAs with ICP-MS impurity profiles. Consider regional stockists to minimize logistics delays for just-in-time production needs.
Related Manufacturers
- 主营：[]
- 主营：四氯钯酸铵、高铁酸钾
- 主营：X荧光光谱仪、X射线光谱分析仪、ED-XRF光谱仪、XRF荧光光谱仪、镀层测厚仪、手持式光谱仪、矿石元素分析仪、合金成分分析仪、全元素无损分析仪、石油焦成分分析仪、催化剂成分分析仪、ROHS2.0检测仪、重金属分析仪、水泥建材成分分析仪、X射线测硫仪、X荧光测硫仪、耐火材料成分分析仪、有毒有害物质重金属检、天瑞仪器光谱仪、镀层膜厚仪、无机元素快速检测仪、波长色散X射线光谱分、镀层测试仪、能量色散光谱仪、地矿元素检测仪
- 主营：硫磺粉末
- 主营：碘甲苯、阻燃剂、碘丙烷、四氯钯酸钠、碘丁烷、溴苯胺、碘癸烷、苯乙酮、碘苯胺、碘乙烷、苯甲酸、溴苯酚、苯甲腈、3.4-二氟、2-丙二醇、cas627-30-5、cas766-85-8、1-碘辛烷、1-碘己烷、cas107-05-1、cas585-79-5、cas150-19-6、ab黑白料、cas831-82-3、苯甲酰胺、聚碳酸酯
- 主营：钼酸铋、钨管靶、铜镍管、六氯钯酸钾、硅化钛、锆酸锂、钛靶材、甲醇钽、催化剂、钒酸铋、硼化铪、硅化钨、硼化锆、羧酸酯、钛锆管、保护管、复合板、核锆管、纯铌管、冷凝器、钛板网、涂钽管、1272-23-7、加热器、材铸件、法兰管
- 主营：催化剂、结晶粉末、烷磺酸钠、四氯钯酸钠、氯亚铂酸钾、四氯铂酸钾、水合三氯化钌、氯化烯丙基钯、三三苯基膦氯化、含钯化合物原料、二叔丁基、黄色粉末、氨基苯基、苯基膦鎓、环己基磷、膦苯基醚、涂层电极、三氟乙酸钯、二聚醋酸铑、二甲基氨基、苯环到环乙烯、四三苯基膦钯