Magnesium fluoride (MgF2), CAS 7783-40-6, is an inorganic fluoride valued for its optical properties and use in specialty materials. Buyers most often evaluate it for optical coatings and components, while other uses include ceramics, glass-related formulations, and laboratory work. For procurement, the right product is not defined by the chemical name alone: confirm the intended application, grade, purity, physical form, particle characteristics, packaging, and documentation before ordering. At Azeal Materials, we help B2B customers clarify these requirements so a quotation and product specification can be matched to the project.
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Magnesium fluoride is a white inorganic solid composed of magnesium and fluoride ions. Its chemical formula is MgF2, and CAS 7783-40-6 is the identifier buyers can use to distinguish it in inquiries, specifications, and shipping documents. It is commonly discussed in optical-material supply because deposited magnesium fluoride films can be used in antireflection coating designs. The performance of a finished coating, however, depends on the complete optical design and deposition process—not the compound name alone.
Reference values help with initial screening, but they should not replace supplier documentation. Reported physical values may vary by source, measurement conditions, and material form, so buyers should confirm the applicable limits for the lot they intend to purchase. For regulated or technically critical applications, use the supplier’s current product specification and certificate of analysis as the procurement basis.
| Property | Reference information | Purchasing relevance |
|---|---|---|
| Chemical formula | MgF2 | Confirms the compound being requested. |
| CAS number | 7783-40-6 | Useful for purchase orders, product identification, and document review. |
| Molar mass | Approximately 62.30 g/mol | Reference value for chemical calculations and formulation work. |
| Melting point | Approximately 1,263 °C | Useful background for evaluating high-temperature processes; confirm process suitability separately. |
| Density | Approximately 3.15 g/cm3 | Reference property; bulk density of a powder may differ from crystal density. |
Magnesium fluoride is used in optical coating systems, including antireflection designs on selected optical components. Its suitability depends on the substrate, target wavelength range, coating architecture, deposition method, and required optical performance. Buyers should provide these details when asking for material, because a general-purpose chemical grade may not meet the cleanliness or consistency requirements of a coating process. Where a finished optic is required, sourcing the coating material and sourcing the coated component are distinct requirements.
Depending on the formulation and process, magnesium fluoride may be considered for specialty ceramic or glass-related applications. It is also used in laboratory and research settings where a defined chemical identity and traceable documentation are important. These applications can require different limits for purity, moisture, particle size, or trace elements. We recommend specifying the intended process rather than relying on a broad label such as “industrial grade.”
Magnesium fluoride may be offered in different physical forms, such as powder or granules, subject to the supplier’s product range. Form affects handling, feeding, dissolution or dispersion behavior, and suitability for a particular manufacturing or deposition process. Do not assume that two products with the same CAS number are interchangeable: particle size distribution, impurity profile, moisture, and packaging can all matter. Ask the supplier to confirm which characteristics are controlled and reported for the offered grade.
For optical or high-purity work, discuss trace-metal limits, lot consistency, and any process-specific contamination controls before purchase. For general laboratory or industrial use, the key criteria may instead be assay, physical form, and packaging. If a buyer has an internal material standard, share it during the inquiry and request a written comparison against the proposed product specification. This makes exceptions visible before order confirmation.
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A useful purchasing specification should identify the product, acceptance criteria, and delivery requirements in a way that both buyer and supplier can verify. At minimum, include CAS 7783-40-6, the desired grade or purity, physical form, order quantity, packaging preference, destination, and required documents. Add limits for particle size, moisture, or selected impurities when they are critical to the application. If a property is not required, avoid adding an arbitrary limit that could narrow supply without improving process performance.
| Specification item | What to confirm |
|---|---|
| Identity and assay | Product name, MgF2 formula, CAS number, assay basis, and acceptance range. |
| Impurities | Which elements or contaminants are measured, their limits, and whether results are lot-specific. |
| Physical form | Powder, granules, or another available form; include a particle-size requirement if needed. |
| Documentation | Certificate of analysis, safety data sheet, and any additional documents required for your organization or market. |
| Packaging and logistics | Pack size, protective packaging needs, labeling, destination, and requested delivery schedule. |
Start by describing how the material will be used, including the process stage and any downstream performance requirements. For optical applications, indicate whether the material is intended for coating deposition or another use, and share relevant process constraints where possible. For formulation work, identify the required purity and physical characteristics. This context helps a supplier recommend a suitable specification without claiming that one grade fits every use.
Ask for a current product specification and representative documentation before committing to a technically sensitive purchase. Confirm that the certificate of analysis reports the parameters your quality team needs, and clarify whether the values are typical or guaranteed limits. For repeat orders, discuss whether the same specification and documentation can be maintained across lots. Any change-control or sample-approval requirement should be agreed in advance.
Price should be assessed alongside order quantity, packaging, shipping route, and lead-time expectations. Availability and minimum order quantities can depend on grade, form, destination, and current inventory, so obtain confirmation for the specific request rather than relying on a general estimate. Also confirm how the product will be labeled and packed for transport and storage. Your internal handling procedures should follow the supplied safety documentation and applicable workplace requirements.
At Azeal Materials, we support B2B sourcing of magnesium fluoride by helping buyers define the grade, form, quantity, and documentation needed for their application. We can review a customer specification and clarify which requested parameters should be confirmed against the offered product documents. For projects with special purity or particle-size requirements, provide the target limits and intended use so we can assess the inquiry accurately. Product availability, lead time, and documentation are confirmed for each quotation rather than assumed.
Magnesium fluoride is MgF2, CAS 7783-40-6, and is used notably in optical coating systems as well as selected specialty-material, laboratory, and industrial applications. To buy the right material, specify the application, grade or purity, physical form, critical impurity and particle-size limits, quantity, packaging, destination, and required documents. Then compare the proposed specification and lot documentation with your process requirements before placing an order. Send Azeal Materials your target specification or application details to request a product review and B2B quotation.
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