CAS 7783-40-6 Magnesium fluoride - Materials / Alfa Chemistry

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Magnesium fluoride

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Catalog Number

ACM7783406-2

CAS Number

7783-40-6

Product Name

Magnesium fluoride

Structure

Category

Electrolytes; Optical Coatings

Synonyms

Aluminum chlorohydrate solution

Molecular Weight

62.3

Molecular Formula

F₂Mg

Canonical SMILES

F[Mg]F

InChI

InChI=1S/2FH.Mg/h2*1H;/q;+2/p-2

InChI Key

ORUIBWPALBXDOA-UHFFFAOYSA-L

Boiling Point

2227 °C

Melting Point

1263 °C

Purity

99%+

Density

3.15 g/mL at 25 °C (lit.)

Appearance

White to off-white random crystals

Application

Magnesium fluoride is a white crystalline powder known for its low chemical reactivity, making it ideal for applications requiring stable, permanent films that alter light transmission properties in optical and electronic materials. It is commonly used to polarize corrective lenses in eyeglasses, effectively reducing glare by selecting the orientation of light waves that pass through. Additionally, magnesium fluoride is utilized in polarizing windows, sunglasses, and other optical items. Its role extends to the electrolysis of aluminum ore for metallic aluminum production and as a reflective coating on various optical components, leveraging its unique tetragonal, birefringent crystal structure.

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