A2140

Ammonium aluminum sulfate dodecahydrate

ReagentPlus^®, ≥99% (titration)

• Synonim(y): Aluminum ammonium sulfate dodecahydrate, Ammonium alum
• Wzór liniowy: AlNH₄(SO₄)₂ · 12H₂O
• Numer CAS: 7784-26-1
• Masa cząsteczkowa: 453.33
• NACRES: NA.55
• PubChem Substance ID: 329770770
• UNSPSC Code: 12352302
• EC Number: 232-055-3
• MDL number: MFCD00149958
• Assay: ≥99% (titration)
• Form: powder or crystals

Właściwości

• Quality Segment: 100
• product line: ReagentPlus^®
• assay: ≥99% (titration)
• form: powder or crystals
• pH: 2.6 (25 °C, 100 g/L)
• mp: 93.5 °C (lit.)
• SMILES string: [Al+3].[H]O[H].[H]O[H].[H]O[H].[H]O[H].[H]O[H].[H]O[H].[H]O[H].[H]O[H].[H]O[H].[H]O[H].[H]O[H].[H]O[H].[H][N+]([H])([H])[H].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O
• InChI: 1S/Al.H3N.2H2O4S.12H2O/c;;2*1-5(2,3)4;;;;;;;;;;;;/h;1H3;2*(H2,1,2,3,4);12*1H2/q+3;;;;;;;;;;;;;;;/p-3
• InChI key: WZUKKIPWIPZMAS-UHFFFAOYSA-K

Opis

General description

Ammonium aluminum sulfate dodecahydrate, commonly called as ammonium alum, is widely used in the water purification, cosmetic formulation, fertilizers and food preservation. Its thermal decomposition has been studied. It has high latent heat of 251kJkg^-1 with a potential use in the heating system. Its utility as a flame-retardant for cotton fabric has been studied.

Application

Ammonium aluminum sulfate dodecahydrate may be used in the preparation of alum (Al(OH)₃) gel and monodispersed yttrium aluminum garnet (YAG) powder.

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

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Informacja o środkach bezpieczeństwa

• Klasa składowania: 13 - Non Combustible Solids
• wgk: WGK 2