Aluminum Potassium Sulfate Dodecahydrate

AlK(SO4)2• 12H2O
CAS 7784-24-9

Product Product Code Order or Specifications
(2N) 99% Aluminum Potassium Sulfate Dodecahydrate AL-KSAT-02-12HYD Contact American Elements
(3N) 99.9% Aluminum Potassium Sulfate Dodecahydrate AL-KSAT-03-12HYD Contact American Elements
(4N) 99.99% Aluminum Potassium Sulfate Dodecahydrate AL-KSAT-04-12HYD Contact American Elements
(5N) 99.999% Aluminum Potassium Sulfate Dodecahydrate AL-KSAT-05-12HYD Contact American Elements

Formula CAS No. PubChem SID PubChem CID MDL No. EC No IUPAC Name Beilstein
Re. No.
AlK(SO4)2• 12H2O 7784-24-9 N/A 62667 MFCD00149143 233-141-3 aluminum; potassium; disulfate; dodecahydrate N/A [Al+3].[K+].[O-]

PROPERTIES Compound Formula Mol. Wt. Appearance Melting Point Boiling Point Density

Exact Mass

Monoisotopic Mass Charge MSDS
H24AlKO20S2 474.39 Clear to white crystals 92 °C N/A 1.757 g/cm3 473.97548 473.97548 0 Safety Data Sheet

Sulfate IonAluminum Potassium Sulfate Dodecahydrate is generally immediately available in most volumes. High purity, submicron and nanopowder forms may be considered. We also produce Aluminum Sulfate Solution. 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.

Aluminum (Al) atomic and molecular weight, atomic number and elemental symbolAluminum, also known as Aluminium, (atomic symbol: Al, atomic number: 13) is a Block P, Group 13, Period 3 element with an atomic weight of 26.9815386. It is the third most abundant element in the earth's crust and the most abundant metallic element.Aluminum Bohr ModelAluminum's name is derived from alumina, the mineral from which Sir Humphrey Davy attempted to refine it from in 1812. It wasn't until 1825 that Aluminum was first isolated by Hans Christian Oersted. Aluminum is a silvery gray metallic metal that possesses many desirable characteristics. It is light, nonmagnetic and non-sparking. It stands second among metals in the scale of malleability, and sixth in ductility. It is extensively used in many industrial applications where a strong, light, easily constructed material is needed. Elemental Aluminum Although it has only 60% of the electrical conductivity of copper, it is used in electrical transmission lines because of its light weight. Pure aluminum is soft and lacks strength, but alloyed with small amounts of copper, magnesium, silicon, manganese, or other elements it imparts a variety of useful properties. Aluminum was first predicted by Antoine Lavoisierin 1787 and first isolated by Friedrich Wöhler in 1827. For more information on aluminum, including properties, safety data, research, and American Elements' catalog of aluminum products, visit the Aluminum Information Center.

Potassium (K) atomic and molecular weight, atomic number and elemental symbol Elemental PotassiumPotassium (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. Potassium Bohr ModelAs 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. 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'. For more information on potassium, including properties, safety data, research, and American Elements' catalog of potassium products, visit the Potassium Information Center.

Sulfur Bohr ModelSulfur (S) atomic and molecular weight, atomic number and elemental symbolSulfur or Sulphur (atomic symbol: S, atomic number: 16) is a Block P, Group 16, Period 3 element with an atomic radius of 32.066. The number of electrons in each of Sulfur's shells is 2, 8, 6 and its electron configuration is [Ne]3s2 3p4. In its elemental form, sulfur has a light yellow appearance. The sulfur atom has a covalent radius of 105 pm and a Van der Waals radius of 180 pm. In nature, sulfur can be found in hot springs, meteorites, volcanoes, and as galena, gypsum, and epsom salts. Sulfur has been known since ancient times but was not accepted as an element until 1777 when Antoine Lavoisier helped to convince the scientific community that it was an element and not a compound. For more information on sulfur, including properties, safety data, research, and American Elements' catalog of sulfur products, visit the Sulfur Information Center.

Material Safety Data Sheet MSDS
Signal Word N/A
Hazard Statements N/A
Hazard Codes N/A
Risk Codes N/A
Safety Precautions N/A
RTECS Number WS5690000
Transport Information N/A
WGK Germany 3
Globally Harmonized System of
Classification and Labelling (GHS)

Alum; Alum, potassium; Alum, potassium, dodecahydrate; aluminium potassium sulfate 12-hydrate; Aluminium potassium sulfate dodecahydrate; aluminium potassium sulphate 12-hydrate; Aluminum potassium disulfate dodecahydrate; Aluminum potassium sulfate (1:1:2) dodecahydrate; aluminum potassium sulfate 12-hydrate; Kalinite; Potassium alum; Potassium alum dodecahydrate

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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 Aluminum

  • M.A. Deyab, Corrosion protection of aluminum bipolar plates with polyaniline coating containing carbon nanotubes in acidic medium inside the polymer electrolyte membrane fuel cell, Journal of Power Sources, Volume 268, 5 December 2014
  • Keywords: Carbon nanotubes; Conductive polymer; Aluminum; Corrosion; Coating
  • Feng Wang, Wei Wang, Ran Ran, Moses O. Tade, Zongping Shao, Aluminum oxide as a dual-functional modifier of Ni-based anodes of solid oxide fuel cells for operation on simulated biogas, Journal of Power Sources, Volume 268, 5 December 2014
  • E. Linga Reddy, J. Karuppiah, Hyun Chan Lee, Dong Hyun Kim, Steam reforming of methanol over copper loaded anodized aluminum oxide (AAO) prepared through electrodeposition, Journal of Power Sources, Volume 268, 5 December 2014
  • H.X. Meng, N. Wang, Y.M. Dong, Z.L. Jia, L.J. Gao, Y.J. Chai, Influence of M–B (M = Fe, Co, Ni) on aluminum–water reaction, Journal of Power Sources, Volume 268, 5 December 2014
  • Wassima El Mofid, Svetlozar Ivanov, Alexander Konkin, Andreas Bund, A high performance layered transition metal oxide cathode material obtained by simultaneous aluminum and iron cationic substitution, Journal of Power Sources, Volume 268, 5 December 2014,
  • Qin Xu, Wen-Jiang Ye, Shun-Zhen Feng, Hui-Yuan Sun, Synthesis and properties of iridescent Co-containing anodic aluminum oxide films, Dyes and Pigments, Volume 111, December 2014
  • Fang He, Zhibiao Hu, Kaiyu Liu, Shuirong Zhang, Hongtao Liu, Shangbin Sang, In situ fabrication of nickel aluminum-layered double hydroxide nanosheets/hollow carbon nanofibers composite as a novel electrode material for supercapacitors, Journal of Power Sources, Volume 267, 1 December 2014
  • Marzena Sujkowska-Rybkowska, Wojciech Borucki, Accumulation and localization of extensin protein in apoplast of pea root nodule under aluminum stress, Micron, Volume 67, December 2014
  • A.W. AlShaer, L. Li, A. Mistry, The effects of short pulse laser surface cleaning on porosity formation and reduction in laser welding of aluminium alloy for automotive component manufacture, Optics & Laser Technology, Volume 64, December 2014
  • Nursen Saklakoglu, Simge Gencalp Irizalp, Erhan Akman, Arif Demir, Near surface modification of aluminum alloy induced by laser shock processing, Optics & Laser Technology, Volume 64, December 2014

Recent Research & Development for Potassium

  • Jorge Omar Gil Posada, Peter J. Hall, Post-hoc comparisons among iron electrode formulations based on bismuth, bismuth sulphide, iron sulphide, and potassium sulphide under strong alkaline conditions, Journal of Power Sources, Volume 268, 5 December 2014
  • Renan Azevedo da Rocha, Carolina Leão Quintanilha, Thayná Viana Lanxin, Júlio Carlos Afonso, Cláudio Augusto Vianna, Valdir Gante, José Luiz Mantovano, Production of potassium manganate and barium manganate from spent zinc–MnO2 dry cells via fusion with potassium hydroxide, Journal of Power Sources, Volume 268, 5 December 2014
  • Kaiyou Zhang, Hong Chen, Xue Wang, Donglin Guo, Chenguo Hu, Shuxia Wang, Junliang Sun, Qiang Leng, Synthesis and structure determination of potassium copper selenide nanowires and solid-state supercapacitor application, Journal of Power Sources, Volume 268, 5 December 2014
  • Elena Yazhenskikh, Tatjana Jantzen, Klaus Hack, Michael Müller, Critical thermodynamic evaluation of oxide systems relevant to fuel ashes and slags: Potassium oxide–magnesium oxide–silica, Calphad, Volume 47, December 2014
  • Qingxin Meng, Xiangda Meng, Huishun Chen, Zhongxiang Zhou, Changes in the electroholographic properties of a paraelectric potassium lithium tantalate niobate crystal by electrostriction, Optics Communications, Volume 331, 15 November 2014
  • Xiaojing Cheng, Jiagang Wu, Ting Zheng, Xiaopeng Wang, Binyu Zhang, Dingquan Xiao, Jianguo Zhu, Xiangjian Wang, Xiaojie Lou, Rhombohedral–tetragonal phase coexistence and piezoelectric properties based on potassium–sodium niobate ternary system, Journal of Alloys and Compounds, Volume 610, 15 October 2014
  • Tangyuan Li, Huiqing Fan, Changbai Long, Guangzhi Dong, Sheji Sun, Defect dipoles and electrical properties of magnesium B-site substituted sodium potassium niobates, Journal of Alloys and Compounds, Volume 609, 5 October 2014
  • Caijun Shi, Jianming Yang, Nan Yang, Yuan Chang, Effect of waterglass on water stability of potassium magnesium phosphate cement paste, Cement and Concrete Composites, Volume 53, October 2014
  • F. Askari, E. Ghasemi, B. Ramezanzadeh, M. Mahdavian, Mechanistic approach for evaluation of the corrosion inhibition of potassium zinc phosphate pigment on the steel surface: Application of surface analysis and electrochemical techniques, Dyes and Pigments, Volume 109, October 2014
  • Yawen Wang, Fangfang Duo, Shiqi Peng, Falong Jia, Caimei Fan, Potassium iodate assisted synthesis of titanium dioxide nanoparticles with superior water-dispersibility, Journal of Colloid and Interface Science, Volume 430, 15 September 2014
  • Il Seok Chae, Miso Kim, Yong Soo Kang, Sang Wook Kang, Enhanced CO2 carrier activity of potassium cation with fluorosilicate anions for facilitated transport membranes, Journal of Membrane Science, Volume 466, 15 September 2014
  • Takuya Wada, Takuya Yasutake, Akira Nakasuga, Taro Kinumoto, Tomoki Tumura, Masahiro Toyoda, Preparation of few-layer graphene by the hydroxylation of a potassium–graphite intercalation compound, Carbon, Volume 76, September 2014
  • Wenjuan Wu, Jing Li, Dingquan Xiao, Min Chen, Yingchun Ding, Chuanqi Liu, Defect dipoles-driven ferroelectric behavior in potassium sodium niobate ceramics, Ceramics International, Volume 40, Issue 8, Part B, September 2014
  • Yongshan Tan, Hongfa Yu, Ying Li, Chengyou Wu, Jinmei Dong, Jing Wen, Magnesium potassium phosphate cement prepared by the byproduct of magnesium oxide after producing Li2CO3 from salt lakes, Ceramics International, Volume 40, Issue 8, Part B, September 2014
  • Xiaoxin Zhang, Qingzhi Yan, Shaoting Lang, Min Xia, Changchun Ge, Basic thermal–mechanical properties and thermal shock, fatigue resistance of swaged + rolled potassium doped tungsten, Journal of Nuclear Materials, Volume 452, Issues 1–3, September 2014
  • J.X. Liao, X.B. Wei, Z.Q. Xu, P. Wang, Effect of potassium-doped concentration on structures and dielectric performance of barium-strontium-titanate films, Vacuum, Volume 107, September 2014
  • Chung-Yul Yoo, Si Young Jang, Jong Hoon Joo, Ji Haeng Yu, Jong-Nam Kim, Soft chemical synthesis and the role of potassium pentahydrogen bis(phosphate) in a proton conducting composite electrolyte based on potassium dihydrogen phosphate, Journal of Power Sources, Volume 260, 15 August 2014
  • Justyna L. Kowal, Julia K. Kowal, Dalin Wu, Henning Stahlberg, Cornelia G. Palivan, Wolfgang P. Meier, Functional surface engineering by nucleotide-modulated potassium channel insertion into polymer membranes attached to solid supports, Biomaterials, Volume 35, Issue 26, August 2014
  • Rajan Singh, Pankaj K. Patro, A.R. Kulkarni, C.S. Harendranath, Synthesis of nano-crystalline potassium sodium niobate ceramic using mechanochemical activation, Ceramics International, Volume 40, Issue 7, Part B, August 2014
  • Nikolas T. Weissmueller, Heiko A. Schiffter, Andrew J. Pollard, A. Cuneyt Tas, Molten salt synthesis of potassium-containing hydroxyapatite microparticles used as protein substrate, Materials Letters, Volume 128, 1 August 2014

Recent Research & Development for Sulfates

  • E.M. van der Merwe, C.L. Mathebula, L.C. Prinsloo, Characterization of the surface and physical properties of South African coal fly ash modified by sodium lauryl sulphate (SLS) for applications in PVC composites, Powder Technology, Volume 266, November 2014
  • F. Agrela, M. Cabrera, A.P. Galvín, A. Barbudo, A. Ramirez, Influence of the sulphate content of recycled aggregates on the properties of cement-treated granular materials using Sulphate-Resistant Portland Cement, Construction and Building Materials, Volume 68, 15 October 2014
  • Mathias Maes, Nele De Belie, Resistance of concrete and mortar against combined attack of chloride and sodium sulphate, Cement and Concrete Composites, Volume 53, October 2014
  • M.L. Nehdi, A.R. Suleiman, A.M. Soliman, Investigation of concrete exposed to dual sulfate attack, Cement and Concrete Research, Volume 64, October 2014
  • Yi Liu, Pengran Gao, Xianfu Bu, Guizhi Kuang, Wei Liu, Lixu Lei, Nanocrosses of lead sulphate as the negative active material of lead acid batteries, Journal of Power Sources, Volume 263, 1 October 2014
  • Zanqun Liu, Dehua Deng, Geert De Schutter, Does concrete suffer sulfate salt weathering?, Construction and Building Materials, Volume 66, 15 September 2014
  • Teresa Stryszewska, The change in selected properties of ceramic materials obtained from ceramic brick treated by the sulphate and chloride ions, Construction and Building Materials, Volume 66, 15 September 2014
  • A. Martínez Gabarrón, J.A. Flores Yepes, J.J. Pastor Pérez, J.M. Berná Serna, L.C. Arnold, F.J. Sánchez Medrano, Increase of the flexural strength of construction elements made with plaster (calcium sulfate dihydrate) and common reed (Arundo donax L.), Construction and Building Materials, Volume 66, 15 September 2014
  • Victor Padilla, Akram Alfantazi, Corrosion film breakdown of galvanized steel in sulphate–chloride solutions, Construction and Building Materials, Volume 66, 15 September 2014
  • V. Barranco, A. Garcia-Gomez, M. Kunowsky, A. Linares-Solano, J. Ibañez, M. King, J.M. Rojo, The contribution of sulfate ions and protons to the specific capacitance of microporous carbon monoliths, Journal of Power Sources, Volume 262, 15 September 2014