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Merck
CN

A2442

Ammonium aluminum sulfate dodecahydrate

ACS reagent, 98.0-102.0%

Synonym(s):

Aluminum ammonium sulfate dodecahydrate, Ammonium alum

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About This Item

Linear Formula:
AlNH4(SO4)2 · 12H2O
CAS Number:
Molecular Weight:
453.33
EC Number:
232-055-3
UNSPSC Code:
12352300
MDL number:
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grade

ACS reagent

assay

98.0-102.0%

impurities

≤0.005% Insoluble matter

mp

93.5 °C (lit.)

anion traces

chloride (Cl-): ≤0.001%

cation traces

Ca: ≤0.05%, Fe: ≤0.001%, K: ≤0.05%, Na: ≤0.01%, heavy metals (as Pb): ≤0.001%

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

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Storage Class

13 - Non Combustible Solids

wgk

WGK 2

ppe

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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