Aluminium Ammonium Sulphate – 500 gram Packs

Aluminium Ammonium Sulphate, also known as Ammonium Aluminium Sulphate or Ammonium Alum, is an inorganic double salt containing aluminium, ammonium, and sulfate ions. Its commonly encountered crystalline form is the dodecahydrate, with the chemical formula NH4Al(SO4)2·12H2O and a molecular weight of approximately 453.33 g/mol. This compound is useful in educational chemistry experiments involving crystallisation, solubility, hydrated salts, and ionic compounds. It is relevant to school practicals, college and university laboratories, and selected research procedures requiring ammonium aluminium sulfate. The material can be used for preparing aqueous solutions and studying the formation of crystalline solids when the specified form is suitable for the method. Laboratories should confirm the hydrate state before quantitative preparation and follow appropriate chemical handling, storage, and disposal procedures.

Product Specifications

Specification	Details
Appearance	Colourless crystals or white crystalline solid
Assay	99%
Chemical Name	Ammonium Aluminium Sulphate Dodecahydrate
Alternate Names	Aluminium Ammonium Sulphate, Ammonium Alum, Ammonia Alum
Molecular Formula	NH4Al(SO4)2·12H2O
Empirical Formula	H28AlNO20S2
CAS Number	7784-26-1
Molecular Weight	453.33 g/mol
Grade	LR Laboratory Reagent

Key Features of Aluminium Ammonium Sulphate

• Inorganic double sulfate containing aluminium and ammonium ions.
• The dodecahydrate form incorporates twelve water molecules into its crystalline composition.
• Suitable for preparing aqueous solutions for compatible laboratory procedures.
• Useful for studying ionic compounds, hydrated salts, and crystallisation processes.
• Relevant to educational and research laboratories when the chemical form and reagent grade meet the intended method requirements.

Laboratory Applications of Aluminium Ammonium Sulphate

• School chemistry practicals demonstrating crystal growth and crystallisation from aqueous solutions under appropriate supervision.
• College and university experiments investigating solubility, hydrated salts, and ionic compounds.
• Preparation of aqueous solutions for procedures that specifically require ammonium aluminium sulfate.
• Educational investigations into the composition and properties of inorganic double salts.
• Research procedures involving aluminium-containing sulfate compounds when the specified hydrate form and grade are appropriate.

Why Choose Lab Wale to Buy Aluminium Ammonium Sulphate

Lab Wale provides a sourcing option for laboratory chemicals and scientific supplies used by schools, colleges, universities, research centres, and laboratory professionals. When purchasing Aluminium Ammonium Sulphate, check the chemical form, grade, pack size, and compatibility with the intended procedure. Available technical and safety information can help laboratories plan appropriate reagent selection, handling, and storage. The 500 g pack provides a defined quantity for educational practicals, solution preparation, and compatible laboratory investigations.

Frequently Asked Questions About Aluminium Ammonium Sulphate

What is Aluminium Ammonium Sulphate used for in laboratories?

Aluminium Ammonium Sulphate is used in laboratory experiments involving crystallisation, solubility, hydrated salts, and inorganic double salts. It can also be used to prepare solutions for procedures that specify ammonium aluminium sulfate. Its suitability depends on the required chemical form and reagent grade.

What is the molecular formula of Aluminium Ammonium Sulphate?

The commonly encountered dodecahydrate has the formula NH4Al(SO4)2·12H2O and a molecular weight of approximately 453.33 g/mol. The twelve water molecules are part of the hydrated compound and must be included when calculating quantities for laboratory solution preparation.

What is the CAS number of Aluminium Ammonium Sulphate?

The CAS Registry Number for ammonium aluminium sulfate dodecahydrate is 7784-26-1. The anhydrous form has a different CAS number, so laboratories should verify the supplied chemical form before recording identifiers or using the reagent in quantitative procedures.

Is Aluminium Ammonium Sulphate suitable for school, college, and research laboratories?

It can be suitable for supervised educational experiments involving crystallisation and ionic compounds, as well as compatible research procedures. Users should verify the reagent grade and hydrate form, assess the experiment’s risks, and follow the applicable laboratory safety procedures.

How should Aluminium Ammonium Sulphate be stored and handled safely?

Store it in a tightly closed, labelled container in a cool, dry location, protected from contamination. Wear appropriate gloves, safety glasses, and laboratory clothing, and avoid generating dust. Follow the current Safety Data Sheet for chemical segregation, spill response, and waste disposal.

Storage Conditions for Aluminium Ammonium Sulphate

Store Aluminium Ammonium Sulphate in a tightly closed, clearly labelled container in a cool, dry, well-ventilated location. Protect the material from contamination and excessive moisture, and use clean equipment when transferring the crystals or powder. Keep it separated from incompatible chemicals in accordance with the current Safety Data Sheet.

Precautions for Handling Aluminium Ammonium Sulphate

Review the Safety Data Sheet before use. Wear suitable laboratory gloves, safety glasses, and protective clothing. Avoid inhaling dust and prevent unnecessary contact with the eyes and skin. Use appropriate ventilation when weighing or transferring the powder, clean spills using approved laboratory procedures, and dispose of solutions and residues according to institutional and local requirements.