Potassium nitrate
Potassium nitrate, also known as saltpeter, is a versatile chemical compound with applications across multiple industries. Our premium-grade potassium nitrate meets the highest purity standards, ensuring optimal performance for agricultural, industrial, and specialty applications.
Product Specifications
Our potassium nitrate comes with the following technical specifications:
- Chemical Formula: KNO₃
- Purity: ≥ 99.7%
- Appearance: White crystalline powder
- Nitrogen Content: 13.7% (as total N)
- Potassium Content: 38.4% (as K₂O)
- Solubility: 316 g/L at 20°C (68°F)
- pH Value: 6-8 (5% solution)
- Bulk Density: 1.1-1.2 g/cm³
| Parameter | Value | Test Method |
|---|---|---|
| Moisture Content | ≤ 0.1% | Karl Fischer |
| Chloride Content | ≤ 0.03% | Volhard |
| Sulfate Content | ≤ 0.01% | Gravimetric |
| Heavy Metals | ≤ 5 ppm | AAS |
| Storage Temperature | 15-30°C | - |
Potassium Nitrate FAQs
Q: What are the primary uses of potassium nitrate?
A: Potassium nitrate has three major applications: 1) As a high-efficiency fertilizer in agriculture, providing both nitrogen and potassium nutrients. 2) In food preservation, particularly for curing meats. 3) As an oxidizer in pyrotechnics and propellants. The compound's stability and dual nutrient content make it particularly valuable for high-value crops like fruits and vegetables.
Q: How should potassium nitrate be stored safely?
A: Potassium nitrate should be stored in cool, dry conditions away from combustible materials. Maintain storage temperatures between 15-30°C (59-86°F) with relative humidity below 50%. Keep containers tightly sealed to prevent moisture absorption. The storage area should be well-ventilated and separate from reducing agents, acids, and organic materials. Always follow local regulations for chemical storage.
Q: What safety precautions are needed when handling potassium nitrate?
A: While potassium nitrate is generally stable, proper safety measures include: wearing protective gloves and goggles to prevent skin/eye contact, using dust masks in powder-handling situations, and avoiding ingestion. In case of fire, use copious amounts of water as potassium nitrate can intensify combustion. Never mix with flammable substances as this creates explosive combinations. Always have emergency eyewash stations available in handling areas.
Technical Advantages
Our potassium nitrate offers several technical benefits:
- Highest purity grade available commercially
- Optimized crystal structure for enhanced solubility
- Low chloride content suitable for chloride-sensitive crops
- Consistent particle size distribution
- Stable chemical properties with long shelf life
Packaging Options
| Package Type | Weight | Units per Pallet |
|---|---|---|
| PP Bags | 25 kg | 50 |
| Big Bags | 1000 kg | 1 |
| Bulk | 25 MT | - |
Custom packaging solutions available upon request to meet specific customer requirements.
More Potassium Nitrate Questions
Q: How does potassium nitrate compare to other potassium sources in agriculture?
A: Potassium nitrate provides significant advantages over alternatives like potassium chloride (KCl) or potassium sulfate (K₂SO₄). Unlike KCl, it's chloride-free, making it ideal for chloride-sensitive crops. Compared to K₂SO₄, it offers higher solubility (about 3 times greater), allowing for fertigation and foliar applications. The dual-nutrient formula means growers can meet both N and K needs with a single product, reducing application costs.
Q: Can potassium nitrate be used in organic farming?
A: The organic certification status of potassium nitrate varies by region. In most cases, naturally mined potassium nitrate may be permitted with restrictions, while synthetic versions are generally prohibited in certified organic production. Growers should consult their specific certification body for guidance. Even when allowed, application rates are typically limited to prevent nitrate leaching and maintain soil balance.
Q: What's the shelf life of potassium nitrate?
A: When stored properly in original packaging under recommended conditions, potassium nitrate maintains its chemical stability for at least 5 years. Key degradation factors to monitor include: clumping from moisture absorption (reversible through drying) and contamination from storage with incompatible materials. Periodically test stored material if extended storage is required, especially for critical applications like rocketry or pyrotechnics.
Quality Assurance
Our potassium nitrate production follows strict quality control protocols:
- Batch testing for purity and consistency
- ISO 9001 certified manufacturing
- Traceability from raw materials to final product
- Third-party laboratory verification
- Compliance with international standards (FCC, USP, EP as applicable)