Platinum Chunk

High Purity Pt Chunk
CAS 7440-06-4

Product Product Code Order or Specifications
(2N) 99% Platinum Chunk PT-M-02-CK Contact American Elements
(3N) 99.9% Platinum Chunk PT-M-03-CK Contact American Elements
(4N) 99.99% Platinum Chunk PT-M-04-CK Contact American Elements
(5N) 99.999% Platinum Chunk PT-M-05-CK Contact American Elements

Formula CAS No. PubChem SID PubChem CID MDL No. EC No Beilstein
Re. No.
Pt 7440-06-4 24868136 23939 MFCD00011179 231-116-1 N/A [Pt] InChI=1S/Pt BASFCYQUMIYNBI-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
195.08 Gray Chunk 21.45 gm/cc N/A 1772°C 3827 °C 0.716 W/cm/K @ 298.2 K 10.6 microhm-cm @ 20°C 2.2 Paulings 0.0317 Cal/g/K @ 25°C 122 K-Cal/gm atom at 3827°C 4.70 Cal/gm mole Safety Data Sheet

High Purity ChunkAmerican Elements specializes in producing high purity Platinum Chunk 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 (See also application discussion at Nanotechnology Information and at Quantum Dots) and in the form of solutions and organometallics. We also produce Platinum as rod, pellets, powder, pieces, disc, ingot, wire, and in compound forms, such as oxide. Other shapes are available by request.

Platinum (Pt) atomic and molecular weight, atomic number and elemental symbolPlatinum (atomic symbol: Pt, atomic number: 78) is a Block D, Group 10, Period 6 element with an atomic weight of 195.084. Platinum Bohr ModelThe number of electrons in each of platinum's shells is [2, 8, 18, 32, 17, 1] and its electron configuration is [Xe] 4f14 5d9 6s1. The platinum atom has a radius of 139 pm and a Van der Waals radius of 175 pm. Platinum was discovered and first isolated by Antonio de Ulloa in 1735. Elemental PlatinumIt is one of the rarest elements in the earth's crust, occurring at a concentration of only 0.005 ppm. Platinum is found uncombined as a free element and alloyed with iridium as platiniridium. In its elemental form, platinum has a grayish white appearance. It is highly resistant to corrosion: the metal does not oxidize in air at any temperature. It is generally non-reactive, even at high temperatures. The origin of the name "platinum" comes from the Spanish word "platina," meaning silver. For more information on platinum, including properties, safety data, research, and American Elements' catalog of platinum products, visit the Platinum Information Center.


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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 Platinum

  • T. Holst, A. Vassiliev, R. Kerr, Q. Li, T. Steenberg, C. Terkelsen, H.A. Hjuler, Determining the platinum loading and distribution of industrial scale polymer electrolyte membrane fuel cell electrodes using low energy X-ray imaging, Journal of Power Sources, Volume 270, 15 December 2014
  • Jing-Jing Lv, Jie-Ning Zheng, Hong-Bao Zhang, Meng Lin, Ai-Jun Wang, Jian-Rong Chen, Jiu-Ju Feng, Simple synthesis of platinum–palladium nanoflowers on reduced graphene oxide and their enhanced catalytic activity for oxygen reduction reaction, Journal of Power Sources, Volume 269, 10 December 2014
  • Liangzhu Zhu, Siddharth Kapoor, Quintin Parry, Ajay Nahata, Anil V. Virkar, Oxidation/reduction studies on nanoporous platinum films by electrical resistance measurements, Journal of Power Sources, Volume 269, 10 December 2014
  • Yanjiao Ma, Hao Li, Hui Wang, Xuefeng Mao, Vladimir Linkov, Shan Ji, Oko Unathi Gcilitshana, Rongfang Wang, Evolution of the electrocatalytic activity of carbon-supported amorphous platinum–ruthenium–nickel–phosphorous nanoparticles for methanol oxidation, Journal of Power Sources, Volume 268, 5 December 2014
  • Yiyin Huang, Fang Fu, Peng Wu, Yaobing Wang, Jiannian Yao, A bioinspired approach to protectively decorate platinum–carbon for enhanced activity and durability in oxygen reduction, Journal of Power Sources, Volume 268, 5 December 2014
  • Juan Liu, Qunwei Tang, Benlin He, Platinum-free binary Fe–Co nanofiber alloy counter electrodes for dye-sensitized solar cells, Journal of Power Sources, Volume 268, 5 December 2014
  • Wenjun Wu, Zhong-Yu Li, Zhiwei Zheng, Yue Hu, Jianli Hua, p–p and p–p conjugation, which is more efficient for intermolecular charge transfer in starburst triarylamine donors of platinum acetylide sensitizers?, Dyes and Pigments, Volume 111, December 2014
  • Huaneng Su, Ting-Chu Jao, Olivia Barron, Bruno G. Pollet, Sivakumar Pasupathi, Low platinum loading for high temperature proton exchange membrane fuel cell developed by ultrasonic spray coating technique, Journal of Power Sources, Volume 267, 1 December 2014
  • Jie Zhang, Shuihua Tang, Longyu Liao, Weifei Yu, Jinshan Li, Frode Seland, Geir Martin Haarberg, Improved catalytic activity of mixed platinum catalysts supported on various carbon nanomaterials, Journal of Power Sources, Volume 267, 1 December 2014
  • Huagen Liang, Huaneng Su, Bruno G. Pollet, Vladimir Linkov, Sivakumar Pasupathi, Membrane electrode assembly with enhanced platinum utilization for high temperature proton exchange membrane fuel cell prepared by catalyst coating membrane method, Journal of Power Sources, Volume 266, 15 November 2014
  • Jie-Ning Zheng, Shan-Shan Li, Fang-Yi Chen, Ning Bao, Ai-Jun Wang, Jian-Rong Chen, Jiu-Ju Feng, Facile synthesis of platinum–ruthenium nanodendrites supported on reduced graphene oxide with enhanced electrocatalytic properties, Journal of Power Sources, Volume 266, 15 November 2014
  • Alexander Schenk, Christoph Grimmer, Markus Perchthaler, Stephan Weinberger, Birgit Pichler, Christoph Heinzl, Christina Scheu, Franz-Andreas Mautner, Brigitte Bitschnau, Viktor Hacker, Platinum–cobalt catalysts for the oxygen reduction reaction in high temperature proton exchange membrane fuel cells – Long term behavior under ex-situ and in-situ conditions, Journal of Power Sources, Volume 266, 15 November 2014
  • Suman Roy, Rajat Saha, Tapan Kumar Mondal, Chittaranjan Sinha, Palladium(II) and platinum(II) complexes of N-{(2-pyridyl)methyliden}-6-coumarin and N-{(2-hydroxy)benzyliden}-6-coumarin, Inorganica Chimica Acta, Volume 423, Part A, 1 November 2014
  • Ming Chen, Yang Meng, Jun Zhou, Guowang Diao, Platinum nanoworms self-assemble on ß-cyclodextrin polymer inclusion complexes functionalized reduced graphene oxide as enhanced catalyst for direct methanol fuel cells, Journal of Power Sources, Volume 265, 1 November 2014
  • Jing-Jing Lv, Jie-Ning Zheng, Ying-Ying Wang, Ai-Jun Wang, Li-Li Chen, Jiu-Ju Feng, A simple one-pot strategy to platinum–palladium@palladium core–shell nanostructures with high electrocatalytic activity, Journal of Power Sources, Volume 265, 1 November 2014
  • Gumaa A. El-Nagar, Ahmad M. Mohammad, Mohamed S. El-Deab, Takeo Ohsaka, Bahgat E. El-Anadouli, Acrylonitrile-contamination induced enhancement of formic acid electro-oxidation at platinum nanoparticles modified glassy carbon electrodes, Journal of Power Sources, Volume 265, 1 November 2014
  • Hossein Farsi, Zahra Barzgari, Synthesis, characterization and electrochemical studies of nanostructured CaWO4 as platinum support for oxygen reduction reaction, Materials Research Bulletin, Volume 59, November 2014
  • Zhao Yao, Cong Wang, Ho-Kun Sung, Nam-Young Kim, Defined micropatterns of platinum thin films by inductively coupled plasma etching using SF6/Ar/O2 mixture gas, Materials Science in Semiconductor Processing, Volume 27, November 2014
  • Xuhai Wang, Francis W. Richey, Kevin H. Wujcik, Yossef A. Elabd, Ultra-low platinum loadings in polymer electrolyte membrane fuel cell electrodes fabricated via simultaneous electrospinning/electrospraying method, Journal of Power Sources, Volume 264, 15 October 2014
  • Hui Cai, Chundong Wang, Baozong Li, Yi Li, Yonggang Yang, Preparation and characterization of single-handed twisted platinum tubular nanoribbons, Materials Letters, Volume 133, 15 October 2014