Potassium Nitrate 200 g Manufacturer,Supplier and Exporter in India

Potassium Nitrate 200 g (Product Code: SCI-651/284) is an analytical reagent grade nitrate salt used as a known nitrate for the brown ring test, a lilac flame test sample and an endothermic dissolving experiment in school and college chemistry laboratories. Teachers use the 200 g pack, supplied with an MSDS, both for ion tests and for measuring the temperature drop when the salt dissolves. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India, a chemistry consumables supplier in India.

Specifications

What Is Potassium Nitrate Used For?

For the brown ring test, a little potassium nitrate solution is mixed with freshly prepared iron(II) sulfate solution, and concentrated sulfuric acid is poured slowly down the side of the tilted tube. A brown ring where the two layers meet confirms nitrate ions. Running the test first on this known nitrate shows students what a positive result looks like before they try unknown salts.

Dissolving potassium nitrate in water absorbs heat, so a thermometer in the beaker records a clear fall in temperature, an easy way to introduce endothermic change and enthalpy of solution in a school chemistry lab. In a flame test, potassium gives a lilac colour that is best seen through blue cobalt glass, which hides any yellow from sodium traces. The salt is an oxidiser, so store it away from fuels, sulfur and charcoal.

What to Specify When Ordering

• The listing you need: this 200 g pack (SCI-651/284) or the separate Potassium Nitrate listing.
• The number of 200 g packs for your laboratory.
• Whether the iron(II) sulfate and concentrated sulfuric acid for the brown ring test should be quoted at the same time.

Supplier

Potassium Nitrate 200 g is sourced and supplied by Jain Scientific Equipments Private Limited, the company behind the ScienceLab name, for school laboratories, colleges, training institutes and dealers. It is sent with its MSDS, and because potassium nitrate is an oxidising salt, overseas buyers should state the destination so that suitable transport packing can be discussed. Learn about the company on the ScienceLab profile.

Related Laboratory Equipment

Reagents and apparatus for nitrate ion tests, flame tests and heat-of-solution work:

• Ferrous Sulfate (II) — forms the brown ring with nitrate in acid.
• Sulphuric Acid Concentrated — the dense lower layer in the brown ring test.
• Digital Thermometer — records the temperature drop on dissolving.
• Potassium Nitrate — the separate catalogue listing of the same salt.
• Flame Test Of Chemicals Lab Investigation — for comparing the lilac potassium flame with other metals.

The Laboratory Equipment category lists further chemicals and glassware.

Frequently Asked Questions

What is Potassium Nitrate 200 g used for?
Potassium Nitrate 200 g is used as a known nitrate for the brown ring test, as a lilac flame test sample and to show an endothermic temperature drop on dissolving, as well as in solubility work. It is analytical reagent grade and supplied with an MSDS.

How is Potassium Nitrate used in the brown ring test?
Potassium Nitrate solution is mixed with fresh iron(II) sulfate solution, then concentrated sulfuric acid is run slowly down the side of the tube to form a lower layer. A brown ring at the boundary confirms nitrate and gives students a reference result.

Why does the temperature fall when Potassium Nitrate dissolves?
Dissolving Potassium Nitrate in water is endothermic: energy is taken in to separate the ions of the crystal, so the solution cools. Measuring the drop with a thermometer lets students compare it with salts that warm the water as they dissolve.

What flame colour does Potassium Nitrate give?
Potassium Nitrate gives a lilac flame colour in a non-luminous Bunsen flame. Viewing the flame through blue cobalt glass hides the yellow glow from any sodium contamination, which makes the potassium colour much easier to identify.

How should Potassium Nitrate 200 g be stored?
Keep Potassium Nitrate 200 g in a closed container in a cool, dry store away from combustible materials, sulfur and charcoal, because it is an oxidiser. Shelf life depends on the chemical, its grade and storage conditions; ask us for the expiry date of the batch you are quoted.

Who supplies Potassium Nitrate 200 g?
Potassium Nitrate 200 g (SCI-651/284) is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India, to schools, colleges and dealers in India and international markets, with an MSDS provided with the chemical.

Request a Quote

Ask for a quotation for Potassium Nitrate 200 g through the contact page or the enquiry cart; include code SCI-651/284, the pack count and your delivery city or country.

Last updated: 24 September 2026