Strontium Fluoride (SrF₂) is an important inorganic fluoride compound widely used in optical materials, electronics, metallurgy, and specialty chemical industries.
With its excellent optical transparency, high thermal stability, and strong resistance to chemical corrosion, strontium fluoride is considered a key material for advanced optical systems and high-temperature applications.
This article provides a detailed overview of strontium fluoride, covering its fundamental properties, material advantages, and major industrial applications, based on FAIRSKY’s experience in supplying fluoride chemicals globally.
Overview of Strontium Fluoride in Industrial Use
Strontium fluoride typically appears as a white crystalline powder or solid. It is sparingly soluble in water and exhibits excellent chemical stability under normal environmental conditions.
Due to its wide transmission range from ultraviolet (UV) to infrared (IR), strontium fluoride is highly valued in optical and photonic applications. In addition, its stable crystal structure makes it suitable for use in harsh environments involving high temperatures or corrosive conditions.
Industrial-grade strontium fluoride is recognized for its consistent purity, stable composition, and reliable performance across various technical applications.
Product Profile – Strontium Fluoride
The table below summarizes the key technical specifications of strontium fluoride for industrial and material applications.
Field | Description |
Product Name | Strontium Fluoride |
Molecular Formula | SrF₂ |
CAS No. | 7783-48-4 |
Appearance | White crystalline powder |
Solubility | Slightly soluble in water |
Stability | Highly stable under normal storage conditions |
Manufacturer | FAIRSKY INDUSTRIAL CO., LIMITED |


Physical Properties and Functional Advantages
Strontium fluoride is known for its excellent optical transmission properties, particularly in ultraviolet and infrared wavelength regions. This makes it a preferred material for optical lenses, windows, and laser components.
It also features a high melting point (approximately 1477°C) and strong resistance to thermal shock, allowing it to maintain structural stability under extreme conditions.
Chemically, strontium fluoride is relatively inert and resistant to most acids and environmental factors, which enhances its durability in industrial applications.
Available Grades and Application-Oriented Options
Strontium fluoride is supplied in various grades depending on application requirements:
Optical Grade Strontium Fluoride
High-purity material used in lenses, prisms, laser systems, and infrared optical components where transmission performance is critical.
Industrial Grade Strontium Fluoride
Applied in metallurgy, ceramics, and general chemical processing where stable composition and cost efficiency are required.
High-Purity / Electronic Grade
Used in advanced materials, photonics, and research applications requiring strict impurity control.
Selection depends on purity levels, particle size, and specific technical requirements.
Key Application Areas of Strontium Fluoride
Optical Materials and Laser Components
Strontium fluoride is widely used in optical systems due to its excellent UV and IR transmission. It is commonly applied in lenses, optical windows, and laser components for scientific and industrial equipment.
Infrared and Ultraviolet Optical Systems
Because of its wide spectral transmission range, strontium fluoride is an important material in infrared imaging systems, spectroscopy instruments, and space-related optical technologies.
Metallurgy and High-Temperature Processing
In metallurgical processes, strontium fluoride can be used as a flux component to improve melting efficiency and remove impurities during high-temperature operations.
Specialty Chemical and Material Applications
Strontium fluoride is also used in specialty glass formulations, advanced ceramics, and certain chemical processes requiring stable fluoride compounds with low reactivity.
Storage and Handling Recommendations
Strontium fluoride should be stored in sealed containers in a dry, well-ventilated area. Although it is chemically stable, protection from contamination and moisture is recommended to maintain product quality.
During handling, appropriate protective equipment such as gloves and dust masks should be used to ensure safe operation.
Conclusion
Strontium fluoride is a high-performance inorganic fluoride compound valued for its excellent optical properties, thermal stability, and chemical resistance. It is widely used in optical systems, metallurgy, and advanced material industries.
With extensive experience in fluoride chemical production and global supply, FAIRSKY offers high-quality strontium fluoride products with consistent specifications and reliable technical support.
Looking for a trusted supplier of strontium fluoride for optical or industrial applications? Contact FAIRSKY to request technical information, specifications, or product samples. |












