99.99% Pure Strontium Fluoride for UV to LWIR Optical Components
Product Summary
Strontium fluoride (SrF₂, CAS 7783-48-4) from Changzhou Jiayuan Chemical is a high-purity optical material with a wide transmission range of approximately 0.15–11 μm, covering ultraviolet to long-wave infrared. This 99.99% pure grade offers low dispersion and low reflection loss, making it suitable for professional optical components such as windows, lenses, and prisms. The cubic fluorite crystal structure provides good surface hardness and low hygroscopicity, supporting reliable processing and use in demanding optical systems.
Key Features
- Wide spectral transmission (0.15–11 μm): Enables use across UV, visible, and LWIR bands, simplifying multi-band optical designs.
- 99.99% purity: Low impurity levels (e.g., Fe 2.31 ppm, other metals <1 ppm) reduce absorption and scattering for high-performance optics.
- Low hygroscopicity: Good surface hardness and moisture resistance support stable processing and long-term use.
- Cubic fluorite structure: Provides isotropic optical properties and consistent refractive index.
- Batch quality support: Jiayuan Chemical assists with technical indicators, testing methods, and quality documentation.
Technical Specifications
| Property | Value |
|---|
| Chemical Formula | SrF₂ |
| CAS Number | 7783-48-4 |
| Molecular Weight | 125.62 g/mol |
| Purity | 99.99% |
| Transmission Range | ~0.15–11 μm |
| Crystal Structure | Cubic fluorite |
| Melting Point | ~1450 °C |
| Density | ~4.24 g/cm³ |
| Fe Content | 2.31 ppm |
| Other Metal Impurities (Co, Cr, Ti, Cu, Mn, Ni, V) | <1 ppm each |
| Burn Weight Loss | 0.26% |
| Appearance | White solid or powder |
Models and Options
Strontium fluoride is available as a white solid (crystalline) or powder. Different optical systems may require specific purity, impurity profiles, and particle size distributions. Contact us to discuss your requirements for particle size, packaging, and documentation.
Materials and Structure
SrF₂ crystallizes in the cubic fluorite structure, which is optically isotropic. The material has a melting point of about 1450 °C and a density of 4.24 g/cm³. Its low hygroscopicity and good surface hardness make it easier to polish and handle than some other fluoride crystals. These properties are reference values and may vary slightly by batch; for precision optical applications, verify purity, impurity content, and crystal quality with the supplier.
Applications
- Optical windows for UV to LWIR spectroscopy
- Lenses and prisms for infrared optical systems
- Components for thermal imaging and sensing
- Research and development in optical materials
Customization
Jiayuan Chemical can assist customers in clarifying technical indicators, testing methods, packaging, and quality document requirements according to the final application. This supports evaluation of the match between raw materials and processes and batch quality traceability. We provide standardized fluoride chemical product supply and related services for optical material, electronic material, and research customers.
Frequently Asked Questions
What is the transmission range of Strontium Fluoride?Approximately 0.15–11 μm, covering ultraviolet to long-wave infrared regions.
What is the purity of this grade?99.99% with low metal impurities; Fe is 2.31 ppm and other listed metals are below 1 ppm.
Is Strontium Fluoride hygroscopic?It has low hygroscopicity and good surface hardness, which is beneficial for optical processing and use.
What forms are available?White solid (crystalline) or powder. Custom particle size and packaging can be discussed.
Can you provide quality documents?Yes, we can assist with technical indicators, testing methods, and quality documentation requirements based on your application.
What is the CAS number?7783-48-4.
Inquiry Information
For pricing, lead time, and custom specifications, please contact:
Name: Jane
Email: janeyuan@czjyhg.com
Tel: +86 15366800998
WhatsApp: +86 13862689212
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