palladium

Also known as Pd, element 46, 46Pd

Palladium is a chemical element; it has the symbol Pd and atomic number 46. It is a rare and lustrous silvery-white metal discovered in 1802 by the English chemist William Hyde Wollaston. He named it after the asteroid Pallas (formally 2 Pallas), which was itself named after the epithet of the Greek goddess Athena, acquired by her when she slew Pallas. Palladium, platinum, rhodium, ruthenium, iridium and osmium form together a group of elements referred to as the platinum group metals. They have similar chemical properties, but palladium has the lowest melting point and is the least dense of t

AI overview

Palladium is a rare, silvery-white metal that was discovered in 1802 and belongs to a group of chemically similar elements called the platinum group metals. It matters because it has useful properties—notably the lowest melting point and least density among its group—that make it valuable for practical applications.

AI-generated from the Wikipedia summary — may contain errors.

Chemical data

Formula: Pd
Molecular weight: 106.42 g/mol
IUPAC name: palladium
SMILES: [Pd]
InChIKey: KDLHZDBZIXYQEI-UHFFFAOYSA-N
Polar surface area: 0 Å²
H-bond donors: 0
H-bond acceptors: 0
Formal charge: 0

via PubChem

Research

34,312 papers

Palladium-catalyzed Synthesis of Fused Carbo- and Heterocycles.ReviewChemistry, an Asian journal · 2022Ghosh T, Biswas D, Bhakta SDOI: 10.1002/asia.202200725
Platinum, palladium, and rhodium in airborne particulate matter.ReviewArhiv za higijenu rada i toksikologiju · 2019Rinkovec JDOI: 10.2478/aiht-2019-70-3293
Palladium in biological media: Can the synthetic chemist's most versatile transition metal become a powerful biological tool?ReviewJournal of inorganic biochemistry · 2021Brewster RC, Klemencic E, Jarvis AGDOI: 10.1016/j.jinorgbio.2020.111317
Supported Palladium Catalyzed Carbonylative Coupling Reactions using Carbon Monoxide as C1 Source.ReviewChemical record (New York, N.Y.) · 2022Shaifali, Sheetal, Das PDOI: 10.1002/tcr.202100157
Palladium-Promoted On-DNA Heck Reactions.Methods in molecular biology (Clifton, N.J.) · 2022Wang X, Lu XDOI: 10.1007/978-1-0716-2545-3_9
Recent Advances in Palladium-Catalyzed Isocyanide Insertions.ReviewMolecules (Basel, Switzerland) · 2020Collet JW, Roose TR, Weijers B et al.DOI: 10.3390/molecules25214906
Palladium-catalysed hydroxylation and alkoxylation.ReviewChemical Society reviews · 2011Enthaler S, Company ADOI: 10.1039/c1cs15085e
Palladium catalysed meta-C-H functionalization reactions.ReviewOrganic & biomolecular chemistry · 2016Dey A, Agasti S, Maiti DDOI: 10.1039/c6ob00395h

via PubMed

Wikidata facts

Mass: 106.42
Image: Palladium (46 Pd).jpg

Show 11 more facts

atomic number: 46
element symbol: Pd
Commons category: Palladium
Commons gallery: Palladium
canonical SMILES: [Pd]
chemical formula: Pd
time of discovery or invention: 1803-00-00
Unicode character: 鈀
ionic radius: 0.62
electronegativity: 2.2
electron configuration: [Kr] 5s² 5d⁸

Sources (5)

via Wikidata · CC0

~24 min read

Article

31 sections

Contents

Characteristics
Isotopes
Compounds
Palladium(II)
Palladium(0)
Other oxidation states
Occurrence
Applications
Catalysis
Electronics
Technology
Hydrogen storage
Medicine
Jewellery
Photography
Art
Research
Cold fusion
Super tough metallic glass
Alternatives
Effects on health
Toxicity
Precautions
History
Palladium as investment
Palladium producers
Exchange-traded products
Bullion coins and bars
See also
References
External links

More than half the supply of palladium and its congener platinum is used in catalytic converters, which convert as much as 90% of the harmful gases in automobile exhaust (hydrocarbons, carbon monoxide, and nitrogen dioxide) into nontoxic substances (nitrogen, carbon dioxide and water vapor). Palladium is also used in electronics, dentistry, medicine, hydrogen purification, chemical applications, electrochemical sensors, electrosynthesis, groundwater treatment, and jewelry.