Potassium bis(oxalato)cuprate(II) Hydrate

K2[Cu(C2O4)2] • xH2O

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(2N) 99% Potassium bis(oxalato)Cuprate(II) Hydrate KCU-OMX-02-HYD Request Quote
(3N) 99.9% Potassium bis(oxalato)Cuprate(II) Hydrate KCU-OMX-03-HYD Request Quote
(4N) 99.99% Potassium bis(oxalato)Cuprate(II) Hydrate KCU-OMX-04-HYD Request Quote
(5N) 99.999% Potassium bis(oxalato)Cuprate(II) Hydrate KCU-OMX-05-HYD Request Quote


Compound Formula C4H4CuK2O9
Molecular Weight 337.81
Appearance Powder
Melting Point 260 °C
Boiling Point N/A
Density N/A
Monoisotopic Mass 482.705321
Exact Mass 336.84

Health & Safety Info  |  MSDS / SDS

Signal Word Warning
Hazard Statements H302-H312
Hazard Codes Xn
Risk Codes 21/22
Safety Statements 24/25
Transport Information N/A
WGK Germany 3
Globally Harmonized System of Classification and Labelling (GHS) N/A


Potassium bis(oxalato)Cuprate(II) Hydrate is generally immediately available in most volumes. High purity, submicron and nanopowder forms may be considered. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.



Chemical Identifiers

Formula K2[Cu(C2O4)2] • xH2O
Pubchem CID 16217290
MDL MFCD04974083
EC No. N/A
IUPAC Name dipotassium; copper; 2-hydroxy -2-oxoacetate; hydrate
SMILES C(=O)(C(=O)[O-])O .C(=O)(C(=O)[O-]) O.O.[K+].[K+].[Cu]
InchI Identifier InChI=1S/2C2H2 O4.Cu.2K.H2O/c 2*3-1(4)2(5)6;;;;/h 2*(H,3,4)(H,5,6);;; ;1H2/q;;;2*+1;/p-2

Packaging Specifications

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 Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.

Related Products & Element Information

See more Copper products. Copper Bohr Model Copper (atomic symbol: Cu, atomic number: 29) is a Block D, Group 11, Period 4 element with an atomic weight of 63.546. The number of electrons in each of copper's shells is 2, 8, 18, 1 and its electron configuration is [Ar] 3d10 4s1. The copper atom has a radius of 128 pm and a Van der Waals radius of 186 pm. Copper was first discovered by Early Man prior to 9000 BC. In its elemental form, copper has a red-orange metallic luster appearance. Of all pure metals, only silver Elemental Copperhas a higher electrical conductivity.The origin of the word copper comes from the Latin word 'cuprium' which translates as "metal of Cyprus." Cyprus, a Mediterranean island, was known as an ancient source of mined copper.

Elemental PotassiumSee more Potassium products. Potassium (atomic symbol: K, atomic number: 19) is a Block S, Group 1, Period 4 element with an atomic weight of 39.0983. The number of electrons in each of Potassium's shells is [2, 8, 8, 1] and its electron configuration is [Ar] 4s1. The potassium atom has a radius of 227.2 pm and a Van der Waals radius of 275 pm. Potassium was discovered and first isolated by Sir Humphrey Davy in 1807. Potassium is the seventh most abundant element on earth. It is one of the most reactive and electropositive of all metals and rapidly oxidizes. As with other alkali metals, potassium decomposes in water with the evolution of hydrogen because of its reacts violently with water, it only occurs in nature in ionic salts.Potassium Bohr Model In its elemental form, potassium has a silvery gray metallic appearance, but its compounds (such as potassium hydroxide) are more frequently used in industrial and chemical applications. The origin of the element's name comes from the English word 'potash,' meaning pot ashes, and the Arabic word qali, which means alkali. The symbol K originates from the Latin word kalium.

Recent Research

Preparation of cube micrometer potassium niobate (KNbO3) by hydrothermal method and sonocatalytic degradation of organic dye., Zhang, Hongbo, Wei Chunsheng, Huang Yingying, and Wang Jun , Ultrason Sonochem, 2016 May, Volume 30, p.61-9, (2016)

Catalytic effect of potassium in Na1-xKxCdPb3(PO4)3 to detect mercury (II) in fish and seawater using a carbon paste electrode., Lahrich, S, Manoun B, and Mhammedi M A. El , Talanta, 2016 Mar 1, Volume 149, p.158-67, (2016)

High potassium level during pregnancy is associated with future cardiovascular morbidity., Wolak, Talya, Shoham-Vardi Ilana, Sergienko Ruslan, and Sheiner Eyal , J Matern Fetal Neonatal Med, 2016 Mar, Volume 29, Issue 6, p.1021-4, (2016)

Evidence for glucagon-like peptide-1 receptor signaling to activate ATP-sensitive potassium channels in pancreatic beta cells., Kwon, Hye-Jung, Park Hyun-Sun, Park Sung-Hee, Park Jae-Hyung, Shin Su-Kyung, Song Seung Eun, Hwang Meeyul, Cho Ho-Chan, and Song Dae-Kyu , Biochem Biophys Res Commun, 2016 Jan 8, Volume 469, Issue 2, p.216-21, (2016)

Decreased voltage-gated potassium currents in rat dorsal root ganglion neurons after chronic constriction injury., Xiao, Yun, Wu Yang, Zhao Bo, and Xia Zhongyuan , Neuroreport, 2016 Jan 20, Volume 27, Issue 2, p.104-9, (2016)

Sensory characterisation and consumer acceptability of potassium chloride and sunflower oil addition in small-caliber non-acid fermented sausages with a reduced content of sodium chloride and fat., Mora-Gallego, Héctor, Guàrdia Maria Dolors, Serra Xavier, Gou Pere, and Arnau Jacint , Meat Sci, 2016 Feb, Volume 112, p.9-15, (2016)

A novel technique using potassium permanganate and reflectance confocal microscopy to image biofilm extracellular polymeric matrix reveals non-eDNA networks in Pseudomonas aeruginosa biofilms., Swearingen, Matthew C., Mehta Ajeet, Mehta Amar, Nistico Laura, Hill Preston J., Falzarano Anthony R., Wozniak Daniel J., Hall-Stoodley Luanne, and Stoodley Paul , Pathog Dis, 2016 Feb, Volume 74, Issue 1, (2016)

Convergent phosphomodulation of the major neuronal dendritic potassium channel Kv4.2 by pituitary adenylate cyclase-activating polypeptide., Gupte, Raeesa P., Kadunganattil Suraj, Shepherd Andrew J., Merrill Ronald, Planer William, Bruchas Michael R., Strack Stefan, and Mohapatra Durga P. , Neuropharmacology, 2016 Feb, Volume 101, p.291-308, (2016)

Salivary levels of calcium, phosphorus, potassium, albumin and correlation with serum biomarkers in hemodialysis patients., Rodrigues, Vandilson P., Franco Mayra M., Marques Consuelo P. C., de Carvalho Rosana C. C., Leite Sandra A. M., Pereira Antonio L. A., and Benatti Bruno B. , Arch Oral Biol, 2016 Feb, Volume 62, p.58-63, (2016)

Engineered Ionic Gates for Ion Conduction Based on Sodium and Potassium Activated Nanochannels., Liu, Qian, Xiao Kai, Wen Liping, Lu Heng, Liu Yahui, Kong Xiang-Yu, Xie Ganhua, Zhang Zhen, Bo Zhishan, and Jiang Lei , J Am Chem Soc, 2015 Sep 23, Volume 137, Issue 37, p.11976-83, (2015)