Aluminum Potassium Sulfate Dodecahydrate

CAS 7784-24-9
Linear Formula: AlK(SO4)2 • 12H2O
MDL Number: MFCD00149143
EC No.: 233-141-3

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(2N) 99% Aluminum Potassium Sulfate Dodecahydrate
(3N) 99.9% Aluminum Potassium Sulfate Dodecahydrate
(4N) 99.99% Aluminum Potassium Sulfate Dodecahydrate
(5N) 99.999% Aluminum Potassium Sulfate Dodecahydrate


Compound Formula H24AlKO20S2
Molecular Weight 474.39
Appearance Clear to white crystals
Melting Point 92 °C
Boiling Point N/A
Density 1.757 g/cm3
Monoisotopic Mass 473.97548
Exact Mass 473.97548

Health & Safety Info  |  MSDS / SDS

Signal Word N/A
Hazard Statements N/A
Hazard Codes Xi
Precautionary Statements N/A
Risk Codes 36/37/38
Safety Statements 26-36
RTECS Number WS5690000
Transport Information NONH for all modes of transport
WGK Germany 3


Aluminum 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.


Alum; potassium alum dodecahydrate; aluminium potassium sulfate 12-hydrate; Aluminium potassium sulphate dodecahydrate; Aluminum potassium disulfate dodecahydrate; Aluminum potassium sulfate (1:1:2) dodecahydrate; Kalinite; Potash alum; CAS 10043-67-1 (anhydrous)

Chemical Identifiers

Linear Formula AlK(SO4)2 • 12H2O
CAS 7784-24-9
Pubchem CID 62667
MDL Number MFCD00149143
EC No. 233-141-3
Beilstein Registry No. N/A
IUPAC Name aluminum; potassium; disulfate; dodecahydrate
SMILES [Al+3].[K+].[O-]S(=O)(=O)[O-].[O-]S([O-])(=O)=O.O.O.O.O.O.O.O.O.O.O.O.O
InchI Identifier InChI=1S/Al.K.2H2O4S.12H2O/c;;2*1-5(2,3)4;;;;;;;;;;;;/h;;2*(H2,1,2,3,4);12*1H2/q+3;+1;;;;;;;;;;;;;;/p-4

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 Aluminum products. Aluminum (or Aluminum) (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 Model Aluminum'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 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 AluminumAlthough 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.
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.
See more Sulfur products. Sulfur (or Sulphur) (atomic symbol: S, atomic number: 16) is a Block P, Group 16, Period 3 element with an atomic radius of 32.066. Sulfur Bohr ModelThe 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.

Recent Research

Validation and comparable analysis of aluminum in the popular Chinese fried bread youtiao by wavelength dispersive XRF., Hua, Hongying, Jiang Xiaofei, and Wu Shimin , Food Chem, 2016 Sep 15, Volume 207, p.1-5, (2016)

Distinctive colonization of Bacillus sp. bacteria and the influence of the bacterial biofilm on electrochemical behaviors of aluminum coatings., Abdoli, Leila, Suo Xinkun, and Li Hua , Colloids Surf B Biointerfaces, 2016 Sep 1, Volume 145, p.688-94, (2016)

Integrative functional transcriptomic analyses implicate specific molecular pathways in pulmonary toxicity from exposure to aluminum oxide nanoparticles., Li, Xiaobo, Zhang Chengcheng, Bian Qian, Gao Na, Zhang Xin, Meng Qingtao, Wu Shenshen, Wang Shizhi, Xia Yankai, and Chen Rui , Nanotoxicology, 2016 Sep, Volume 10, Issue 7, p.957-69, (2016)

Co-exposure to aluminum and acrylamide disturbs expression of metallothionein, proinflammatory cytokines and induces genotoxicity: Biochemical and histopathological changes in the kidney of adult rats., Ghorbel, Imen, Maktouf Sameh, Fendri Nesrine, Jamoussi Kamel, Chaabouni Semia Ellouze, Boudawara Tahia, and Zeghal Najiba , Environ Toxicol, 2016 Sep, Volume 31, Issue 9, p.1044-58, (2016)

Metal Ion Imbalance-Related Oxidative Stress Is Involved in the Mechanisms of Liver Injury in a Rat Model of Chronic Aluminum Exposure., Yang, Yang, Wang Hong, Guo Yuanxin, Lei Wenjuan, Wang Jianfeng, Hu Xinyue, Yang Junqing, and He Qin , Biol Trace Elem Res, 2016 Sep, Volume 173, Issue 1, p.126-31, (2016)

Assessment of the impact of Aluminum on germination, early growth and free proline content in Lactuca sativa L., Silva, Patrícia, and Matos Manuela , Ecotoxicol Environ Saf, 2016 Sep, Volume 131, p.151-6, (2016)

Bias in determining aluminum concentrations: Comparison of digestion methods and implications on Al management., Y He, Thomas, and Ziemkiewicz Paul F. , Chemosphere, 2016 Sep, Volume 159, p.570-6, (2016)

Removing hydrochloric acid exhaust products from high performance solid rocket propellant using aluminum-lithium alloy., Terry, Brandon C., Sippel Travis R., Pfeil Mark A., I Gunduz Emre, and Son Steven F. , J Hazard Mater, 2016 Nov 5, Volume 317, p.259-66, (2016)

Evaluation of using aluminum sulfate and water-soluble Moringa oleifera seed lectin to reduce turbidity and toxicity of polluted stream water., Freitas, José Henrique E., de Santana Keissy Vanderley, Nascimento Ana Cláudia C., de Paiva Sérgio Carvalho, de Moura Maiara Celine, Coelho Luana Cassandra, de Oliveira Maria Betânia M., Paiva Patrícia Maria Gued, Nascimento Aline Elesbão d, and Napoleão Thiago Henrique , Chemosphere, 2016 Nov, Volume 163, p.133-41, (2016)

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