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Ammonium aluminum sulfate dodecahydrate

SIGALD/A2140 - ReagentPlus®, ≥99% (titration)

Synonym: Aluminum ammonium sulfate dodecahydrate; Ammonium alum

CAS Number: 7784-26-1
Empirical Formula (Hill Notation): H4AlNO8S2 · 12H2O
Molecular Weight: 453.33
EC Number: 232-055-3
MDL Number: MFCD00149958
Linear Formula: AlNH4(SO4)2 · 12H2O
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-A2140-500G 500 g
 $193.00
1/EA		 Add To Favorites
45-A2140-1KG 1 kg
 $276.00
1/EA		 Add To Favorites
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.

This image depicts SKU: A2140-500G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.

This image depicts SKU: A2140-1KG

 

assay ≥99% (titration)
form powder or crystals
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
mp 93.5 °C (lit.)
pH 2.6 (25 °C, 100 g/L)
product line ReagentPlus®
Quality Level 100 
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
Application: Ammonium aluminum sulfate dodecahydrate may be used in the preparation of alum (Al(OH)3) gel and monodispersed yttrium aluminum garnet (YAG) powder.
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.
Legal Information: ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany
Packaging: 1 kg in poly bottle
Packaging: 500 g in poly bottle
Hazard Codes Xi
Risk Statements 36/37/38
Safety Statements 26-36
RIDADR NONH for all modes of transport
WGK Germany WGK 3
Flash Point(F) Not applicable
Flash Point(C) Not applicable
Purity ≥99% (titration)
mp 93.5 °C (lit.)
UNSPSC 12352300

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