What are the isomers of the substance with CAS 10043-01-3?
Dec 19, 2025
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The compound with CAS number 10043-01-3 is Aluminum sulfate, which has the chemical formula Al₂(SO₄)₃. As a well - known supplier of CAS 10043 - 01 - 3, I am quite familiar with this substance and its isomers. In this blog, we will explore the possible isomers of Aluminum sulfate, and also introduce some of its applications and our services as a supplier.
Isomers of Aluminum Sulfate (CAS 10043 - 01 - 3)
Isomers are molecules with the same molecular formula but different structural arrangements. Aluminum sulfate, Al₂(SO₄)₃, in its traditional sense, exists in several forms, which can be considered as different structural manifestations or "isomeric - like" forms due to different hydration states and crystal structures.
Hydrated and Anhydrous Forms
One of the most significant distinctions is between the anhydrous form and the hydrated forms of aluminum sulfate. The anhydrous form (Al₂(SO₄)₃) is a white crystalline solid. It is formed by removing all the water molecules from the hydrated compounds.
However, the more common forms of aluminum sulfate are the hydrated ones. The most prevalent hydrated form is the octadecahydrate, Al₂(SO₄)₃·18H₂O. This hydrated form has a different physical appearance compared to the anhydrous form. It often appears as colorless, shiny crystals or a white powder. The water molecules in the hydrated form are coordinated to the aluminum ions in the crystal lattice, which affects its solubility, reactivity, and other physical and chemical properties.
There is also the hexadecahydrate form, Al₂(SO₄)₃·16H₂O, which is another possible hydrated isomer - like form. The difference in the number of water molecules in these hydrates leads to different crystal structures and intermolecular forces within the compounds.


Structural Isomers in Complexes
In more complex chemical environments, aluminum sulfate can form coordination compounds. For example, in the presence of other ligands, the aluminum ions can form different coordination geometries. The sulfate ions can act as ligands themselves, coordinating to the aluminum ions in different ways.
In some cases, when there are additional metal ions or organic ligands present, isomeric complexes of aluminum sulfate can be formed. These complexes can have different spatial arrangements of the ligands around the aluminum ions, leading to different chemical and physical properties. For instance, the coordination of sulfate ions and other ligands can result in cis - or trans - isomers, where the relative positions of the ligands around the central aluminum ion vary.
Applications of Aluminum Sulfate
Aluminum sulfate has a wide range of applications, which makes it a highly demanded chemical product.
Water Treatment
One of the most important applications of aluminum sulfate is in water treatment. It is commonly used as a coagulant in both drinking water and wastewater treatment processes. In drinking water treatment, it helps to remove suspended particles, colloids, and some organic matter from the water. When added to water, aluminum sulfate hydrolyzes to form aluminum hydroxide, which can attract and bind the impurities, causing them to settle out of the water. You can learn more about Aluminium Sulfate Water Treatment.
In wastewater treatment, it plays a similar role. It can help to clarify the water by aggregating the pollutants, making them easier to separate from the water. Iron - Free Aluminum Sulfate Powder For Sewage Treatment is a specific product that is used in sewage treatment to avoid the introduction of iron impurities into the treated water.
Paper Industry
In the paper industry, aluminum sulfate is used as a sizing agent. It helps to improve the paper's resistance to water, ink, and other liquids. It also affects the paper's strength, smoothness, and printability. By interacting with the cellulose fibers in the paper, it forms a protective layer on the surface of the paper, enhancing its performance.
Textile Industry
In the textile industry, aluminum sulfate is used as a mordant. A mordant is a substance that helps to fix dyes to the fabric, making the colors more permanent. It forms a complex with the dye molecules, which then binds to the textile fibers, preventing the dye from washing out easily.
Other Applications
Aluminum sulfate is also used in the production of other chemicals, such as aluminum hydroxide, which is used in the manufacturing of antacids and catalysts. It can also be used in the purification of industrial gases and in the production of fire - retardant materials.
Our Supply of CAS 10043 - 01 - 3
As a reliable supplier of CAS 10043 - 01 - 3, we are committed to providing high - quality aluminum sulfate products. We offer different forms of aluminum sulfate, including both the hydrated and anhydrous forms, to meet the diverse needs of our customers.
Our production process adheres to strict quality control standards. We ensure that our products meet or exceed the industry requirements in terms of purity, stability, and performance. We have a professional team of chemists and technicians who monitor every step of the production process to guarantee the quality of our products.
We also provide excellent customer service. Whether you have questions about the product specifications, applications, or pricing, our customer service representatives are always ready to assist you. We can offer customized solutions based on your specific needs, ensuring that you get the most suitable aluminum sulfate product for your application.
Why Choose Our Products?
- High Quality: Our products are produced with the highest quality raw materials and advanced production techniques, resulting in products with consistent quality and excellent performance.
- Diverse Forms: We offer a wide range of forms of aluminum sulfate, including different hydration states, to meet the needs of various industries.
- Good Solubility and Reactivity: Our products have excellent solubility in water and good reactivity, which is crucial for their applications in water treatment, paper making, and other industries.
- Competitive Pricing: We offer our products at competitive prices without compromising on quality. This allows you to get the best value for your money.
If you are in the market for Ferric Aluminium Sulphate or other forms of aluminum sulfate, we are your ideal partner. We invite you to contact us to discuss your procurement needs. We are confident that our products and services will meet your expectations and help you achieve your business goals.
References
- Kirk - Othmer Encyclopedia of Chemical Technology.
- Ullmann's Encyclopedia of Industrial Chemistry.
- Principles of Water Treatment by George Tchobanoglous, Franklin L. Burton, and H. David Stensel.
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