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Aluminium sulfate

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Identification
Molecular formula
Al2(SO4)3
CAS number
10043-01-3
IUPAC name
dialuminum;trisulfate
State
State
At room temperature, aluminium sulfate exists as a solid. It is often encountered as an 18-hydrate, Al2(SO4)3·18H2O, which is readily soluble in water.
Melting point (Celsius)
770.00
Melting point (Kelvin)
1 043.00
Boiling point (Celsius)
770.00
Boiling point (Kelvin)
1 043.00
General information
Molecular weight
342.15g/mol
Molar mass
342.1500g/mol
Density
2.6700g/cm3
Appearence

Aluminium sulfate is an odorless, white crystalline solid. It is hygroscopic and can absorb water from the environment. It may appear as a white powder or in the form of shiny orthorhombic crystals.

Comment on solubility

Solubility of Dialuminum Trisulfate (Al2(SO4)3)

Dialuminum trisulfate, commonly represented by the formula Al2(SO4)3, exhibits interesting solubility properties that are crucial for its applications in various fields. When considering the solubility of this compound, several key factors come into play:

  • Water Solubility: Al2(SO4)3 is known to be soluble in water. This characteristic is essential for its use in water treatment processes, where it facilitates the coagulation of impurities.
  • Temperature Dependency: The solubility of Al2(SO4)3 increases with rising temperatures, making it more effective in higher temperature scenarios.
  • Ion Interaction: Being a salt, its dissolution results in the release of Al3+ ions and SO42- ions into solution, influencing the overall chemical behavior of the solution.
  • pH Considerations: The solubility can also be affected by the pH of the solution, as changes in acidity can influence the stabilization of Al3+ ions.

In summary, the solubility of dialuminum trisulfate is characterized by its high solubility in water, temperature dependence, ion interactions, and sensitivity to pH. As with many chemical compounds, understanding these factors is vital for safely and effectively utilizing Al2(SO4)3 in both industrial and laboratory settings.

Interesting facts

Interesting Facts about Dialuminum Trisulfate

Dialuminum trisulfate, commonly known as aluminum sulfate, is a fascinating chemical compound with a wide array of applications and interesting characteristics. Here are some noteworthy facts:

  • Essential in Water Purification: Aluminum sulfate plays a critical role in water treatment facilities. It acts as a coagulant, helping to remove impurities and clarify water by aggregating suspended particles.
  • Historical Significance: This compound has been used since ancient times for various purposes, including dyeing textiles. Its enduring utility speaks to its effectiveness and importance in chemical processes.
  • Industrial Versatility: Beyond water treatment, dialuminum trisulfate finds applications in various industries such as paper manufacturing, where it's used in the papermaking process to enhance the quality and strength of the paper.
  • Garden Benefits: In gardening, aluminum sulfate is often utilized to lower soil pH, making it beneficial for acid-loving plants like blueberries and azaleas. It serves as a natural fertilizer, promoting healthier growth.

As a scientist or chemistry student, it’s intriguing to note how a single compound can serve such diverse roles across different fields. “Science is the poetry of the universe,” as the famous physicist Paul Dirac once said, and dialuminum trisulfate reflects this sentiment by contributing to the beauty and functionality of our world.

In conclusion, dialuminum trisulfate is more than just a compound; it is a vital player in environmental, industrial, and agricultural applications, showcasing the profound impact of chemistry on everyday life.

Synonyms
ALUMINUM SULFATE
Dialuminum trisulfate
Dialuminum sulfate
Aluminum sulfate anhydrous
Aluminum alum
Filter Alum
Pickle Alum
Aluminum sesquisulfate
Papermaker's Alum
Aluminum sulfate (2:3)
Pearl Alum
Aluminum trisulfate
Dialuminum sulphate
Aluminum(III) silfate
Hi Soft C 2
Caswell No. 031A
Tai-Ace S 100
Aluminum sulfate (3:2)
CCRIS 9170
HSDB 5067
Aluminum sulfate (Al2(SO4)3)
Sulfatodialuminum disulfate (Al2(SO4)3)
Aluminum sulphate anhydrous
EINECS 233-135-0
NSC 54563
EPA Pesticide Chemical Code 013906
UNII-I7T908772F
ALUM CAKE
Sulfuric acid, aluminum(3+) salt (3:2)
I7T908772F
INS NO.520
DTXSID2040317
INS-520
EC 233-135-0
SULFURIC ACID, ALUMINIUM SALT
NSC-54563
Sulfuric acid aluminum(3+) salt (3:2)
E-520
ALUMINUM SULFATE ANHYDROUS (II)
ALUMINUM SULFATE ANHYDROUS [II]
DTXCID0020317
DTXCID4093275
ALUMINII SULFAS, ANHYDROUS
DTXSID70170784
ALUMINIUM SULFATE, ANHYDROUS
USEPA/OPP Pesticide Code: 013906
alminum sulfate hydrate
aluminii sulfas
aluminii sulfas, hydrate
aluminium sulfate (2:3) tetradeca-octadecahydrate
aluminium sulfate (ep monograph)
aluminium sulfate, hydrate
aluminum sulfate (usp impurity)
aluminum sulfate (usp monograph)
aluminum sulphate
cake alum
not less than 54% and not more than 59% al2(so4)
nsc54563
sulfuric acid, aluminium salt (3:2), hydrate
unii-34s289n54e
10043-01-3
Sulfuric acid, aluminum salt (3:2)
Aluminium sulphate
aluminum(III) sulfate
Sulfuric acid, aluminum salt
aluminium sulfate anhydrous
Aluminum sulfate, anhydrous
aluminium sulfate (anhydrous)
MFCD00003423
Cake alum (VAN)
Aluminum alum (VAN)
Nalco 7530
Tai-Ace S 150
dialuminum;trisulfate
EINECS 233-329-5
Stingose (TN)
Sulfuric acid, aluminum salt (1:?)
aluminum(III)sulfate
dialuminium trisulfate
FERTOSAN
sulfuric acid, aluminium salt (3:2)
aluminium sesquisulfate
aluminium(III) sulfate
aluminium sulfate (anh.)
sulfatodialuminum disulfate
aluminium sulfate (2:3)
sulfatodialuminium disulfate
Sulfuric acid,aluminum salt
SCHEMBL20219
ALUMINUM SULFATE [MI]
Al2(SO4)3
CHEMBL3833402
CHEBI:74768
ALUMINIUM SULFATE [WHO-DD]
EINECS 259-881-7
Sulfuric acid, aluminum salt, basic
AKOS015903882
DB11239
ALUMINUM SULFATE ANHYDROUS [HSDB]
SY115573
NS00100748
ALUMINIUM SULFATE, ANHYDROUS [WHO-IP]
D07565
ALUMINII SULFAS, ANHYDROUS [WHO-IP LATIN]
Sulfuric acid,aluminumsalt(3:2),hydrate(2:11)(8ci,9ci)