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Potassium Sulfate
Potassium Sulfate (Product Code: SCI-717/316) is an analytical reagent grade potassium salt used to prepare potash alum crystals, show the lilac potassium flame and teach sulfate chemistry in school and college laboratories. Agriculture and environmental science students also know it as sulfate of potash, a chloride-free fertiliser; this listing is a 100 g pack with MSDS. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India, which supplies reagents alongside chemistry lab equipment in India.
Specifications
| Parameter | Detail |
|---|---|
| Chemical | Potassium sulfate |
| Grade | Analytical reagent |
| Pack size | 100 g |
| Documentation | MSDS included |
| Shelf life | Shelf life depends on the chemical, its grade and storage conditions; ask us for the expiry date of the batch you are quoted. |
| Product code | SCI-717/316 |
| Supplied by | Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India |
What Is Potassium Sulfate Used For?
The standard double-salt practical dissolves Potassium Sulfate and aluminium sulfate together in hot water and lets the solution cool slowly, so that clear octahedral crystals of potash alum separate. Students learn that a double salt has its own crystal shape yet still gives the tests of each of its ions.
In qualitative analysis, a clean wire loop dipped in the salt gives a lilac flame that is easier to see through blue cobalt glass, while barium chloride solution gives a white precipitate confirming sulfate. The salt is stable and not strongly hygroscopic, so it weighs out easily. Wear goggles and avoid breathing the dust, as the MSDS advises.
Supplier
Jain Scientific Equipments Private Limited trades as ScienceLab and supplies Potassium Sulfate from Ambala, Haryana, sourcing analytical reagents for institutional chemistry stores. Buyers can combine this salt with the aluminium sulfate and glassware needed for alum preparation on one order. Visit the ScienceLab profile to learn more about the company.
Related Laboratory Equipment
Alum preparation and ion tests with Potassium Sulfate commonly involve:
- Aluminum Sulfate — the partner salt that crystallises with it as potash alum.
- Potash Alum — the ready-made double salt, for comparing crystal shape and ion tests.
- Flame Test Of Chemicals Lab Investigation — a structured activity for identifying metal ions by flame colour.
- Barium Chloride 200 g — the reagent that confirms the sulfate ion.
- Porcelain Dish (China Dish) — concentrates the alum solution to its crystallising point.
The Laboratory Equipment category lists more reagents and glassware for these practicals.
Frequently Asked Questions
What is Potassium Sulfate used for in school labs?
Potassium Sulfate is used in school and college labs to prepare potash alum crystals, to show the lilac flame of potassium ions and to practise the barium chloride test for sulfate. It also illustrates fertiliser chemistry as sulfate of potash in agriculture and environmental lessons.
How is potash alum made from Potassium Sulfate?
Potash alum is made by dissolving Potassium Sulfate and aluminium sulfate together in hot water, filtering if needed and letting the solution cool slowly until octahedral crystals separate. Take the exact quantities from your practical manual; aluminium sulfate can be added to the same quotation.
What colour flame does Potassium Sulfate give?
Potassium Sulfate gives a lilac flame, the characteristic colour of potassium ions. Sodium traces can hide it behind a strong yellow, so view the flame through blue cobalt glass and clean the wire loop in concentrated hydrochloric acid before each test.
Is laboratory Potassium Sulfate the same as fertiliser sulfate of potash?
Chemically both are Potassium Sulfate, but this listing is an analytical reagent grade 100 g pack with MSDS, intended for laboratory work and teaching. Fertiliser grades are meant for field use and are not a substitute where reagent purity matters.
What is the shelf life of Potassium Sulfate?
Shelf life depends on the chemical, its grade and storage conditions, so no fixed period is stated for Potassium Sulfate. Ask us for the expiry date of the batch you are quoted and keep the container closed on a dry shelf away from strong acids.
Can Potassium Sulfate be ordered with other reagents for export?
Yes. Potassium Sulfate can be quoted together with aluminium sulfate, barium chloride and glassware for delivery across India and international markets. Send the pack quantities and destination, and Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, will prepare a combined quotation.
Request a Quote
Ask for a Potassium Sulfate quotation through our contact page, stating the number of 100 g packs and your delivery location, or add it to the enquiry cart with the other salts for your alum practical. We will reply with pricing and the batch expiry date.
Last updated: 24 September 2026
