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Aluminium ammonium sulfate dodecahydrate

Product Name
Aluminium ammonium sulfate dodecahydrate
CAS No.
7784-26-1
Chemical Name
Aluminium ammonium sulfate dodecahydrate
Synonyms
ALUM;AMMONIUM A;ALUM AMMONIA;AMMONIUM ALUM;ALUM AMMONIUM;AINH4(SO4)2·12H2O;Aluminum ammonium su;AMMONIUM ALUM POWDER USP;AMMONIUM ALUMINIUM SULFATE;AluminiumAmmoniumSulphateAr
CBNumber
CB6481463
Molecular Formula
AlH28NO20S2
Formula Weight
453.33
MOL File
7784-26-1.mol
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Aluminium ammonium sulfate dodecahydrate Property

Melting point:
93.5 °C(lit.)
Boiling point:
200 °C
Density 
1.64
storage temp. 
Store at +5°C to +30°C.
solubility 
H2O: 0.1 M at 20 °C, clear, colorless
form 
Solid
Specific Gravity
1.64
color 
White
PH
2.6 (100g/l, H2O, 25℃)
Odor
Odorless
PH Range
2.6
Water Solubility 
Soluble in water and glycerol. Insoluble in alcohol.
Merck 
14,327
Exposure limits
NIOSH: TWA 2 mg/m3
Stability:
Stable.
LogP
-1.031 (est)
CAS DataBase Reference
7784-26-1(CAS DataBase Reference)
EPA Substance Registry System
Aluminum ammonium disulfate dodecahydrate (7784-26-1)
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Safety

Hazard Codes 
Xi,C
Risk Statements 
36/37/38-34
Safety Statements 
26-36-45-36/37/39-27
WGK Germany 
3
RTECS 
WS5640010
TSCA 
Yes
HS Code 
2833 30 00
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
1.01031
Product name
Aluminium ammonium sulfate dodecahydrate
Purity
for analysis EMSURE? ACS
Packaging
500g
Price
$306
Updated
2024/03/01
Alfa Aesar
Product number
013802
Product name
Aluminum ammonium sulfate dodecahydrate, Reagent Grade
Packaging
100g
Price
$34.3
Updated
2023/06/20
Alfa Aesar
Product number
013802
Product name
Aluminum ammonium sulfate dodecahydrate, Reagent Grade
Packaging
2kg
Price
$227
Updated
2023/06/20
Sigma-Aldrich
Product number
A2140
Product name
Ammonium aluminum sulfate dodecahydrate
Purity
ReagentPlus , ≥99% (titration)
Packaging
500g
Price
$193
Updated
2024/03/01
Sigma-Aldrich
Product number
A2140
Product name
Ammonium aluminum sulfate dodecahydrate
Purity
ReagentPlus , ≥99% (titration)
Packaging
1kg
Price
$276
Updated
2024/03/01
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Aluminium ammonium sulfate dodecahydrate Chemical Properties,Usage,Production

Chemical Properties

Colorless transparent cube or white powder. No smell, astringent taste. Slightly soluble in water (15g/100ml at 20℃), easily soluble in hot water. The water solution is acidic. Soluble in dilute acid and glycerol, insoluble in alcohol. Loses 10 molecules of water when heated to 120℃, becomes anhydrous alum when heated to 200℃, and decomposes at 280℃.

Uses

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

Definition

ChEBI: Ammonium alum is an inorganic sulfate salt.

Preparation

Aluminium ammonium sulfate dodecahydrate is produced through the reaction of sulphuric acid with aluminium hydroxide. Ammonium sulphate is added to the mixture and allowed to react. The mixture is then cooled and crystallized, followed by centrifugal separation. The resulting product is dried to obtain the final aluminium ammonium sulfate.

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.

Purification Methods

Crystallise it from hot H2O and cool in ice. When the melt is heated, it loses NH3 and H2SO4, and gives pure alumina at red heat. Solubility (%) in H2O is 3.9 (0o), 15.0 (20o) and 135 (100o).

Aluminium ammonium sulfate dodecahydrate Preparation Products And Raw materials

Raw materials

BAUXITE Aluminum sulfate Aluminum ammonium sulfate Aluminum hydroxide Ammonium sulfate

Preparation Products

Aluminum ammonium sulfate Aluminum oxide
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Aluminium ammonium sulfate dodecahydrate Suppliers

Belgium 1 Canada 2 China 133 Czech Republic 1 Europe 3 France 2 Germany 4 India 29 Japan 5 Switzerland 1 United Kingdom 6 United States 34 Global 221
J & K SCIENTIFIC LTD.
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010-82848833 400-666-7788
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021-61259108 18621169109
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400-6106006
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021-67582001/03/05
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saleschina@alfa-asia.com
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Sinopharm Chemical Reagent Co,Ltd.
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Spectrum Chemical Manufacturing Corp.
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View Lastest Price from Aluminium ammonium sulfate dodecahydrate manufacturers

Hebei Zhuanglai Chemical Trading Co Ltd
Product
Aluminium ammonium sulfate dodecahydrate 7784-26-1
Price
US $79.00-38.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
20ton
Release date
2024-11-15
LY Global chemicals co.,ltd .
Product
Aluminium ammonium sulfate dodecahydrate 7784-26-1
Price
US $0.00-0.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
1000 KG
Release date
2023-12-04
Career Henan Chemical Co
Product
AMMONIUM ALUM 7784-26-1
Price
US $1.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
25kg
Release date
2019-07-11

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