Alum Potash – 500 gram Packs

Potash Alum, also known as Potassium Alum or Potassium Aluminium Sulphate, is an inorganic double salt containing potassium, aluminium, and sulfate ions. Its commonly available crystalline form is potassium aluminium sulfate dodecahydrate, with the chemical formula KAl(SO4)2·12H2O and a molecular weight of approximately 474.39 g/mol. It forms colourless crystals or a white crystalline solid and dissolves in water. Potash Alum is widely used in educational chemistry experiments involving crystallisation, solubility, and hydrated salts. It is also relevant to college practicals, university laboratories, and selected research procedures requiring potassium aluminium sulfate. Its defined composition makes it useful for studying ionic compounds and crystal formation. For analytical and research applications, the chemical form and reagent grade should meet the requirements of the intended method, with appropriate laboratory safety procedures followed throughout use.

Product Specifications

Specification	Details
Appearance	Colourless crystals or white crystalline solid
Assay	99%
Chemical Name	Potassium Aluminium Sulphate Dodecahydrate
Alternate Names	Potash Alum, Potassium Alum, Aluminium Potassium Sulphate
Molecular Formula	KAl(SO4)2·12H2O
Empirical Formula	KAlH24O20S2
CAS Number	7784-24-9
Molecular Weight	474.39 g/mol
Grade	LR Laboratory Reagent

Key Features of Potash Alum

• Inorganic double sulfate containing potassium and aluminium ions.
• The dodecahydrate form contains twelve water molecules within its crystalline structure.
• Water-soluble material suitable for preparing aqueous solutions for compatible laboratory procedures.
• Useful for studying crystallisation, solubility, and hydrated salt chemistry.
• Suitable for educational and research applications when the chemical form and grade meet the intended method requirements.

Laboratory Applications of Potash Alum

• 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 potassium aluminium sulfate.
• Educational investigations into double salts and their chemical composition.
• Research procedures involving potassium and aluminium sulfate chemistry, provided the reagent grade and chemical form are suitable for the method.

Why Choose Lab Wale to Buy Potash Alum

Lab Wale provides a sourcing option for laboratory chemicals and scientific supplies used by schools, colleges, universities, research centres, and laboratory professionals. When purchasing Potash Alum, confirm the chemical form, grade, pack size, and compatibility with the intended experiment. Available technical and safety information can help laboratories plan appropriate reagent selection, handling, and storage. The 500 g pack offers a defined quantity for educational practicals, crystal-growth experiments, and compatible laboratory procedures.

Frequently Asked Questions About Potash Alum

What is Potash Alum used for in laboratories?

Potash Alum is used in educational chemistry experiments involving crystal growth, crystallisation, solubility, and hydrated salts. It can also be used to prepare aqueous solutions for procedures that specify potassium aluminium sulfate. The suitability of the reagent depends on the method and required grade.

What is the molecular formula of Potash Alum?

The common dodecahydrate form has the molecular formula KAl(SO4)2·12H2O and a molecular weight of approximately 474.39 g/mol. The twelve water molecules are part of the crystalline composition and should be included when calculating quantities for laboratory experiments.

What is the CAS number of Potash Alum?

The CAS Registry Number for potassium aluminium sulfate dodecahydrate is 7784-24-9. This identifier corresponds to the hydrated form, so laboratories should verify the chemical identity before recording it in inventory systems or using the compound in a specific procedure.

Is Potash Alum suitable for school, college, and research laboratories?

Potash Alum is suitable for many supervised educational experiments involving crystallisation and ionic compounds. It may also be used in compatible research procedures when the required chemical form and grade are appropriate. Users should follow the Safety Data Sheet and the laboratory’s risk assessment.

How should Potash Alum be stored and handled safely?

Store it in a tightly closed, labelled container in a cool, dry location, protected from contamination. Wear suitable gloves, safety glasses, and laboratory clothing during handling. Avoid generating dust and follow the current Safety Data Sheet for spill management, chemical segregation, and waste disposal.

Storage Conditions for Potash Alum

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

Precautions for Handling Potash Alum

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.