CAS: 10042-76-9
Alias: Strontium dinitrate
Molecular Formula: Sr(NO₃)₂
Relative Molecular Mass: 211.63 g/mol
Structural Formula:
1. Product Property
Strontium nitrate is a white crystalline powder with strong oxidizing properties. It is highly soluble in water and liquid ammonia, slightly soluble in ethanol and acetone, and insoluble in nitric acid. It has a melting point of 570°C and decomposes at high temperatures, emitting toxic nitrogen oxides. It is hygroscopic and can cause fire or explosion when in contact with organic materials or reducing agents
2. Quality Standard
| Parameter | Specification |
| Appearance | White crystalline powder |
| Purity (Sr(NO₃)₂) | ≥ 99.0% / 99.5% (AR/CP) |
| Water insoluble matter | ≤ 0.01% (AR), ≤ 0.05% (CP) |
| Loss on drying | ≤ 0.1% (AR), ≤ 0.5% (CP) |
| Free acid (as HNO₃) | ≤ 0.013% |
| Chloride (Cl) | ≤ 0.0005% (AR), ≤ 0.002% (CP) |
| Sulfate (SO₄) | ≤ 0.005% (AR), ≤ 0.01% (CP) |
| Sodium (Na) | ≤ 0.03% (AR), ≤ 0.05% (CP) |
| Magnesium (Mg) | ≤ 0.005% (AR), ≤ 0.01% (CP) |
| Potassium (K) | ≤ 0.02% (AR), ≤ 0.05% (CP) |
| Calcium (Ca) | ≤ 0.03% (AR), ≤ 0.05% (CP) |
3. Application Scope and Usage
Strontium nitrate is widely used in the manufacture of red signal flares, fireworks, and flame-producing devices due to its ability to produce bright crimson flames. It is also used in the glass industry to refine glass and improve its optical properties. In electronics, it serves as a component in cathode materials and in the production of high-purity strontium salts. Additionally, it finds application in analytical chemistry and as a precursor in the synthesis of advanced ceramic materials
4. Package and Storage
Strontium nitrate is typically packed in sealed plastic or polyethylene bags, which are then placed in fiber drums or plastic containers. Common packaging sizes include 25 kg, 50 kg, and 500 g for laboratory or industrial use. It should be stored in a cool, dry, and well-ventilated area, away from heat, moisture, and incompatible materials such as organic compounds, reducing agents, and acids. Proper labeling and handling are essential due to its oxidizing nature and potential fire hazard.
