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Palladium Chunk

High Purity Pd Chunks
CAS 7440-05-3

Product Product Code Request Quote
(2N) 99% Palladium Chunk PD-M-02-CK Request Quote
(3N) 99.9% Palladium Chunk PD-M-03-CK Request Quote
(4N) 99.99% Palladium Chunk PD-M-04-CK Request Quote
(5N) 99.999% Palladium Chunk PD-M-05-CK Request Quote

Formula CAS No. PubChem SID PubChem CID MDL No. EC No Beilstein
Re. No.
Pd 7440-05-3 24861601 23938 MFCD00011167 231-115-6 N/A [Pd] InChI=1S/Pd KDLHZDBZIXYQEI-UHFFFAOYSA-N

PROPERTIES Mol. Wt. Appearance Density Tensile Strength Melting Point Boiling Point Thermal Conductivity Electrical Resistivity Eletronegativity Specific Heat Heat of Vaporization Heat of Fusion MSDS
106.42 Gray Powder 12.02 gm/cc N/A 1554 °C 2970 °C

0.718 W/cm/K @ 298.2 K

10.54 microhm-cm @ 20°C

2.2 Paulings

0.0584 Cal/g/K @ 25°C 90 K-cal/gm atom at 2970°C

4.12 Cal/gm mole

Safety Data Sheet

High Purity ChunkAmerican Elements specializes in producing high purity Palladium Chunks are produced using crystallization, solid state and other ultra high purification processes such as sublimation. Standard Chunk pieces are amorphous uniform pieces ranging in size from 5-15 mm. American Elements specializes in producing custom compositions for commercial and research applications and for new proprietary technologies. American Elements also casts any of the rare earth metals and most other advanced materials into granules, rod, bar or plate form, as well as other machined shapes and through other processes such as nanoparticles and in the form of solutions and organometallics. We also produce Palladium as rod, pellets, powder, pieces, disc, ingot, wire, and in compound forms, such as oxide. Other shapes are available by request.

Palladium Bohr ModelPalladium (Pd) atomic and molecular weight, atomic number and elemental symbolPalladium (atomic symbol: Pd, atomic number: 46) is a Block D, Group 10, Period 5 element with an atomic weight of 106.42. The number of electrons in each of palladium's shells is 2, 8, 18, 18 and its electron configuration is [Kr] 4d10. The palladium atom has a radius of 137 pm and a Van der Waals radius of 202 pm. In its elemental form, palladium has a silvery white appearance. Palladium is a member of the platinum group of metals (along with platinum, rhodium, ruthenium, iridium and osmium).Elemental Palladium Palladium has the lowest melting point and is the least dense of the group. Palladium can be found as a free metal and alloyed with other platinum-group metals. Nickel-copper deposits are the main commercial source of palladium. Palladium was discovered and first isolated by William Hyde Wollaston in 1803. Its name is derived from the asteroid Pallas. For more information on palladium, including properties, safety data, research, and American Elements' catalog of palladium products, visit the Palladium element page.


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Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Material Safety Data Sheet (MSDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes.

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Recent Research & Development for Palladium

  • Synthesis of Quinolinones with Palladium-Catalyzed Oxidative Annulation between Acrylamides and Arynes. Weiguo Wang, Xianglong Peng, Xiaoyu Qin, Xiangyun Zhao, Chen Ma, Chen-Ho Tung, and Zhenghu Xu. J. Org. Chem.: 42051
  • Palladium-Catalyzed Direct Ortho Aroylation of 2-Phenoxypyridines with Aldehydes and Catalytic Mechanism Investigation. Jean-Ho Chu, Shih-Tien Chen, Meng-Fan Chiang, and Ming-Jung Wu. Organometallics: February 16, 2015
  • Catalytically Activated Palladium-Platinum Nanowires for Accelerated Hydrogen Gas Detection. Xiaowei Li, Yu Liu, John C. Hemminger, and Reginald M. Penner. ACS Nano: February 13, 2015
  • Palladium-Catalyzed Intermolecular Aminocarbonylation of Alkenes: Efficient Access of β-Amino Acid Derivatives. Jiashun Cheng, Xiaoxu Qi, Ming Li, Pinhong Chen, and Guosheng Liu. J. Am. Chem. Soc.: February 12, 2015
  • Catalytic Deoxygenation of Octanoic Acid over Supported Palladium: Effects of Particle Size and Alloying with Gold. KEYI SUN, Adria R. Wilson, Simon T. Thompson, and H. Henry Lamb. ACS Catal.: February 10, 2015
  • Atomic Layer-by-Layer Deposition of Platinum on Palladium Octahedra for Enhanced Catalysts toward the Oxygen Reduction Reaction. Jinho Park, Lei Zhang, Sang-Il Choi, Luke T. Roling, Ning Lu, Jeffrey A. Herron, Shuifen Xie, Jinguo Wang, Moon J. Kim, Manos Mavrikakis, and Younan Xia. ACS Nano: February 8, 2015
  • A New Class of Non-C2-Symmetric Ligands for Oxidative and Redox-Neutral Palladium-Catalyzed Asymmetric Allylic Alkylations of 1,3-Diketones. Barry M. Trost, Etienne J. Donckele, David A. Thaisrivongs, Maksim Osipov, and James T. Masters. J. Am. Chem. Soc.: January 28, 2015
  • Refractive Index Susceptibility of the Plasmonic Palladium Nanoparticle: Potential as the Third Plasmonic Sensing Material. Kosuke Sugawa, Hironobu Tahara, Ayane Yamashita, Joe Otsuki, Takamasa Sagara, Takashi Harumoto, and Sayaka Yanagida. ACS Nano: January 28, 2015
  • In Situ Synthesis of Self-Assembled Three-Dimensional Graphene–Magnetic Palladium Nanohybrids with Dual-Enzyme Activity through One-Pot Strategy and Its Application in Glucose Probe. Xuejing Zheng, Qian Zhu, Huiqing Song, Xinrui Zhao, Tao Yi, Hongli Chen, and Xingguo Chen. ACS Appl. Mater. Interfaces: January 26, 2015