Description
Specifications Table
Product Name – Calcium fluoride, PuratrOnic™, 99.985% (metals basis) Quantity/Pack Size – 50g, 10g Form – Crystalline powder Grade – PuratrOnic™ (ultra-high purity, 99.985% metals basis) Application – Optical coatings, IR spectroscopy, semiconductor manufacturing, and trace-metal-sensitive processes
Product Overview
Calcium fluoride (CaF₂) in PuratrOnic™ grade delivers exceptional purity at 99.985% (metals basis), making it a critical reagent for applications demanding ultra-low trace metal contamination. This crystalline powder is processed under stringent conditions to eliminate impurities, ensuring consistency in optical clarity, thermal stability, and chemical inertness. Its high transparency across a broad spectral range—from ultraviolet to infrared—makes it indispensable in IR spectroscopy, lens manufacturing, and laser components. The material’s resistance to most acids and bases further enhances its utility in aggressive chemical environments. Unlike standard grades, PuratrOnic™ Calcium Fluoride undergoes rigorous quality control, including ICP-MS analysis, to guarantee adherence to tight specifications for semiconductor, photonics, and high-precision analytical laboratories. Its low refractive index and minimal birefringence reduce signal distortion, while the absence of hygroscopic tendencies ensures long-term stability under controlled storage. Whether used as a substrate, window material, or dopant, this grade provides reliability for experiments where even ppb-level contaminants can compromise results.
FAQs
1. What is the difference between PuratrOnic™ and standard calcium fluoride grades?
PuratrOnic™ calcium fluoride undergoes additional purification steps to achieve 99.985% metals basis purity, with stricter controls on trace elements like iron, lead, and silicon. Standard grades typically range between 97-99% purity and may contain higher levels of metallic impurities, which can interfere with sensitive applications like IR spectroscopy or semiconductor fabrication.
2. Can this calcium fluoride be used for UV-grade optical applications?
Yes, PuratrOnic™ calcium fluoride is suitable for UV-grade applications due to its high transparency in the 190 nm–8 µm range. Its low absorption and scattering losses make it ideal for UV lenses, prisms, and windows where minimal signal attenuation is critical.
3. How should this product be stored to maintain its purity?
Store the sealed container in a cool, dry environment (15–25°C) away from direct sunlight and moisture. Avoid exposure to acidic or alkaline vapors, as prolonged contact can degrade the surface. For long-term storage, use desiccant packs in the container to prevent humidity-induced clumping.
4. Is this calcium fluoride compatible with high-vacuum systems?
Yes, its low outgassing properties and thermal stability (up to 1,400°C) make it compatible with high-vacuum environments. However, pre-baking the material at 200–300°C under vacuum can further reduce adsorbed moisture for ultra-high-vacuum applications.
5. What alternatives exist for applications requiring lower fluorescence?
For applications where autofluorescence is a concern, synthetic quartz or magnesium fluoride (MgF₂) can be alternatives, though they may not match calcium fluoride’s refractive index or broadband transparency. Always verify spectral compatibility for your specific wavelength range.
