Product Overview
Our 99.9% High-Purity Potassium Nitrate (Crystalline) is a high-grade inorganic chemical material developed for applications where raw material purity and product consistency are essential. With a potassium nitrate content of 99.9%, it is suitable for selected industrial processes requiring high-purity nitrate materials.
This crystalline potassium nitrate is particularly relevant to glass manufacturing, including optical glass production and chemical strengthening of consumer electronics cover glass. Its quality characteristics make it a potential raw material for manufacturers seeking to maintain stable processing conditions and consistent finished-product performance.
As a potassium nitrate manufacturer and supplier in China, we provide product information and technical documentation to help customers evaluate material suitability for their specific production requirements.
Key Product Features
- High Purity: Potassium nitrate content of 99.9%, suitable for applications with stringent raw material requirements.
- Crystalline Form: Supplied in crystalline form for industrial handling and processing.
- Controlled Impurity Levels: Iron content is below 0.0004%, supporting applications where iron contamination requires particular attention.
- Industrial Applications: Suitable for evaluating use in optical glass manufacturing, chemically strengthened glass and other specialized industrial processes.
- Technical Support: Product specifications and batch quality documentation can be provided for customer evaluation.
Applications of High-Purity Potassium Nitrate
1. Optical Glass Manufacturing
High-purity potassium nitrate can be used as a raw material in selected optical glass manufacturing processes. For applications where optical quality and impurity control are critical, the purity and trace-metal profile of the material should be evaluated against the manufacturer’s technical requirements.
2. Chemical Strengthening of Consumer Electronics Glass
Potassium nitrate is widely used in the chemical strengthening of glass through ion exchange. During this process, potassium ions replace smaller sodium ions near the glass surface, generating a compressive stress layer that improves the glass’s mechanical resistance.
High-purity material can help manufacturers manage raw material impurity risks in applications such as smartphone cover glass, tablet screens and other electronic glass components. Final suitability depends on the glass composition, process conditions and the customer’s acceptance criteria.
3. Specialized Industrial Processing
Certain industrial processes require potassium nitrate with high chemical purity and controlled impurity levels. Our 99.9% crystalline grade can be evaluated for these applications according to the specific process, technical specifications and quality requirements of the end user.
Parameter
| Test Item | Technical Indicator | Test Result |
|---|---|---|
| Potassium nitrate (KNO₃) | ≥ 99.9% | 99.91 |
| pH Value | 5.0–8.0 | 5.80 |
| Water Insolubles | ≤ 0.05% | 0.0016 |
| Chloride ion (Cl⁻) | ≤ 0.005% | < 0.0025 |
| Iodate (IO₃⁻) | ≤ 0.002 | < 0.002 |
| Sulfate (SO₄²⁻) | ≤ 0.01 | < 0.003 |
| Nitrite (NO₂⁻) | ≤ 0.001% | < 0.001 |
| Ammonium (NH₄⁺) | ≤ 0.005 | < 0.005 |
| Phosphate (PO₄³⁻) | ≤ 0.001 | < 0.001 |
| Sodium (Na) | ≤ 0.02 | 0.00059 |
| Calcium (Ca) | ≤ 0.001% | 0.00015 |
| Magnesium (Mg) | ≤ 0.001 | 0.000048 |
| Iron (Fe) | ≤ 0.0005 | < 0.0004 |
| Heavy Metals (as Pb) | ≤ 0.001 | < 0.001 |
Application Field
- Main applications: Chemical strengthening of glass covers for mobile phone touch screens.
- Other applications: Widely used as a chemical strengthening agent for optical glass in computer tablet displays, automotive central control displays, and other electronic glass applications.
Quality Documentation and Supply
We understand that high-purity chemical materials must meet the technical requirements of each customer’s production process. Before placing an order, customers are encouraged to confirm the required purity, impurity limits, crystalline characteristics, packaging and applicable quality documentation.
Available technical documents can be discussed according to the product specification and intended application.
For customers requiring 99.9% high-purity potassium nitrate, we can discuss product specifications, packaging options, order quantities and export arrangements based on individual purchasing requirements.
Request a Quotation
Looking for a reliable supplier of 99.9% High-Purity Potassium Nitrate (Crystalline)?
Contact our sales team with your target specifications, intended application, required quantity and destination port. We will help you evaluate the appropriate product grade and provide a quotation based on your requirements.