Potassium Nitrate
Potassium Nitrate (CAS 7757-79-1, E252), min. 99.0%, fully water-soluble, supplied wholesale by Zyntex. Chloride-free NK fertilizer, glass fining and strengthening salt, molten salt component and curing salt. CoA and SDS.
Description
Potassium Nitrate Product Overview
Potassium nitrate (KNO3) is a white crystalline powder or granule that dissolves completely in water. It contains about 13% nitrogen and 46% K2O and no chloride. In food, it carries the E number E252.
Agriculture is the largest market. Growers use it in fertigation, hydroponics and foliar sprays, especially for chloride-sensitive crops such as fruit, vegetables and tobacco. It often complements Urea and potassium sources such as Potassium Carbonate in nutrient programs.
Industry uses it as a fining agent in glass and in ion-exchange baths that chemically strengthen thin glass for screens. Molten mixtures of sodium and potassium nitrates store heat in concentrated solar power plants. It is also a curing salt for meat (E252) and an oxidizer in pyrotechnics. In the EU, it is a reportable explosives precursor, so suspicious transactions must be reported.
Key Applications of Potassium Nitrate
Main application areas:
🌱 Fertilizers
Chloride-free nitrogen and potassium source for fertigation and foliar feeding.
📱 Glass
Fining agent and ion-exchange salt for chemically strengthened glass.
☀️ Heat Storage
Component of molten salt mixtures in solar thermal plants.
🥓 Food
Curing salt for meat products (E252).
Potassium Nitrate Technical Specifications
| Parameter | Standard Value |
|---|---|
| Product Name | Potassium Nitrate |
| CAS Number | 7757-79-1 |
| EC Number | 231-818-8 |
| E Number | E252 |
| Molecular Formula / Weight | KNO3 / 101.10 g/mol |
| Assay (KNO3) | Min 99.0% |
| Appearance | White Crystalline Powder / Granules |
| Solubility | 100% Soluble in Water |
| Documents | CoA and SDS with every lot |
⚠️ Safety & Handling: Oxidizer that may intensify fire. Keep away from combustible materials, reducing agents, acids and heat. Avoid dust formation and wear gloves and eye protection. Store in a cool, dry place in tightly closed bags, separated from fuels and organic materials. Always consult the Safety Data Sheet (SDS) for full classification and handling instructions.
Frequently Asked Questions
Which grades do you supply?
Agricultural (fully water-soluble), technical and food grades are available. Please state the grade and application when requesting a quote.
Is potassium nitrate regulated in the EU?
Yes. It is listed as a reportable explosives precursor, which means suppliers must report suspicious transactions. Professional users can buy it with the usual documentation.
How can I get a price and documents?
Prices depend on quantity, packaging and destination. Contact us with your required volume to receive a quotation together with the CoA and SDS.
