ChemicalBook--->CAS DataBase List--->7784-26-1

7784-26-1

7784-26-1 Structure

7784-26-1 Structure
IdentificationMore
[Name]

AMMONIUM ALUM
[CAS]

7784-26-1
[Synonyms]

ALUM
ALUM AMMONIUM
ALUMINIUM AMMONIUM SULFATE 12-WATER
ALUMINIUM AMMONIUM SULFATE DODECAHYDRATE
ALUMINIUM AMMONIUM SULPHATE DODECAHYDRATE
ALUMINUM AMMONIUM SULFATE, 12-HYDRATE
ALUMINUM AMMONIUM SULFATE DODECAHYDRATE
ALUMINUM AMMONIUM SULPHATE, DODECHYDRATE
ALUMINUM AMMONIUM SULPHATE HYDRATED
AMMONIUM ALUM
AMMONIUM ALUM DODECAHYDRATE
AMMONIUM ALUMINIUM SULFATE
AMMONIUM ALUMINIUM SULFATE 12-WATER
AMMONIUM ALUMINUM SULFATE DODECAHYDRATE
AMMONIUM ALUM SULFATE DODECAHYDRATE
Sulfuricacid,aluminium(3+)ammoniumsalt(2:1:1)
Sulfuricacidaluminumammoniumsalt(2:1:1),dodecahydrate
ALUMINUM AMMONIUM SULFATE DODECAHYDRATE, REAGENTPLUS TM, >= 99%
ALUMINUM AMMONIUM SULFATE DODECAHYDRATE, 99.999%
ALUMINUM-NICKEL CATALYST RANEY-TYPE &
[EINECS(EC#)]

232-055-3
[Molecular Formula]

AlH28NO20S2
[MDL Number]

MFCD00149958
[Molecular Weight]

453.33
[MOL File]

7784-26-1.mol
Chemical PropertiesBack Directory
[Appearance]

white crystals or powder
[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
[color ]

White
[Specific Gravity]

1.64
[Odor]

Odorless
[PH]

2.6 (100g/l, H2O, 25℃)
[PH Range]

2.6
[Stability:]

Stable.
[Water Solubility ]

Soluble in water and glycerol. Insoluble in alcohol.
[Merck ]

14,327
[Exposure limits]

NIOSH: TWA 2 mg/m3
[LogP]

-1.031 (est)
[CAS DataBase Reference]

7784-26-1(CAS DataBase Reference)
[EPA Substance Registry System]

7784-26-1(EPA Substance)
Safety DataBack Directory
[Hazard Codes ]

Xi,C
[Risk Statements ]

R36/37/38:Irritating to eyes, respiratory system and skin .
R34:Causes burns.
[Safety Statements ]

S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S27:Take off immediately all contaminated clothing .
[WGK Germany ]

3
[RTECS ]

WS5640010
[TSCA ]

Yes
[HS Code ]

28333000
Raw materials And Preparation ProductsBack Directory
[Raw materials]

Aluminum hydroxide-->Ammonium sulfate-->Aluminum sulfate-->Aluminum ammonium sulfate-->BAUXITE
[Preparation Products]

Aluminum oxide-->Aluminum ammonium sulfate
Hazard InformationBack Directory
[Chemical Properties]

white crystals or powder
[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.
[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).
Spectrum DetailBack Directory
[Spectrum Detail]

AMMONIUM ALUM(7784-26-1)IR1
AMMONIUM ALUM(7784-26-1)IR2
Well-known Reagent Company Product InformationBack Directory
[Acros Organics]

Aluminium ammonium sulfate dodecahydrate, reagent, crystals, 99%(7784-26-1)
[Alfa Aesar]

Aluminum ammonium sulfate dodecahydrate, Reagent Grade(7784-26-1)
[Sigma Aldrich]

7784-26-1(sigmaaldrich)
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