Research Grade Aluminium Sulphate
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Product Code : SCL-CA-12639
Quick Answer: The Research Grade Aluminium Sulphate is an aluminium sulphate reagent used under supervision for sulphate-salt and aluminium-ion lessons, coagulation and flocculation demonstrations, solution preparation and specified chemical analysis.
Last updated: October 2026
Key Features
- Anhydrous Al2(SO4)3, CAS 10043-01-3, about 342.15 g/mol
- Octadecahydrate Al2(SO4)3·18H2O, CAS 7784-31-8, 666.4 g/mol
- Used to demonstrate coagulation and flocculation
- Supports stoichiometry and solution-preparation calculations
- Handled with eye, skin and dust protection
Technical Specifications
| Specification | Value |
|---|---|
| Chemical name | Aluminium sulphate |
| Formula, anhydrous | Al2(SO4)3 |
| Formula, octadecahydrate | Al2(SO4)3·18H2O |
| Molecular weight, anhydrous | About 342.15 g/mol |
| Molecular weight, octadecahydrate | 666.4 g/mol |
About This Product
In class, aluminium sulphate is used to show coagulation and flocculation, alongside lessons on sulphate salts, aluminium ions and hydrates. The hydrated form has a much higher molecular weight than the anhydrous salt, so the form on the label is identified before any calculation. Clean, dry tools are used, dust is avoided, and the salt is dissolved only in the solvent and concentration the method specifies.
Frequently Asked Questions
Q1. Why does the hydrate form matter for aluminium sulphate?
The octadecahydrate weighs 666.4 g/mol against about 342.15 g/mol for the anhydrous salt, so using the wrong form would give a very different solution strength.
Related: Chemical Analysis, Barium Sulphate Fine Powder, Nickel Sulphate Reagent.
For a quotation on the Research Grade Aluminium Sulphate, contact School Equipments India.
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