Aluminum Potassium Sulfate Dodecahydrate


AlK(SO4)2 • 12H2O

Request Quote

Product Code Available Product Forms Request A Quote
AL-KSAT-02-C.12HYD (2N) 99% Aluminum Potassium Sulfate Dodecahydrate Request
AL-KSAT-03-C.12HYD (3N) 99.9% Aluminum Potassium Sulfate Dodecahydrate Request
AL-KSAT-04-C.12HYD (4N) 99.99% Aluminum Potassium Sulfate Dodecahydrate Request
AL-KSAT-05-C.12HYD (5N) 99.999% Aluminum Potassium Sulfate Dodecahydrate Request


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
Exact Mass 473.97548
Monoisotopic Mass 473.97548

Health & Safety Info  |  MSDS / SDS

Signal Word Warning
Hazard Statements H315-H319-H335
Hazard Codes Xi
Risk Codes 36/37/38
Safety Statements 26-36
RTECS Number N/A
Transport Information N/A
WGK Germany 3
Globally Harmonized System of Classification and Labelling (GHS) N/A


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; 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

Chemical Identifiers

Formula AlK(SO4)2 • 12H2O
CAS 7784-24-9
Pubchem CID 62667
MDL MFCD00149143
EC No. 233-141-3
IUPAC Name aluminum; potassium; disulfate; dodecahydrate
Beilstein Registry No. N/A
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 Material Safety Data Sheet (MSDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes.

Free Test Sample Program

We recognize many of our customers are purchasing small quantities directly online as trial samples in anticipation of placing a larger future order or multiple orders as a raw material for production. Since our primary business is the production of industrial quantities and/or highly consistent batches which can be used for commercial production and purchased repeatedly in smaller quantity, American Elements offers trial samples at no charge on the following basis. Within 6 months of purchasing materials directly online from us, you have the option to refer back to that order and advise that it is the intention of your company, institution or lab to either purchase a larger quantity, purchase the material in regular intervals or purchase more on some other basis.

We will then evaluate your future needs and assuming the quantity or number of future purchases qualify, we will fully credit your purchase price with the next order. Because of the many variables in the quantity and number of orders you may place, it is impossible to evaluate whether your future order(s) will qualify for this program prior to your placing your next order. Please know American Elements strongly desires to make this free sample program available to you and will make every effort to do so once your next order is placed.