930989

Cloruro di magnesio

99.999% (trace metals basis)

• Sinonimo/i: Magnesium dichloride hexahydrate
• Formula condensata: MgCl₂ · 6H₂O
• Numero CAS: 7791-18-6
• Peso molecolare: 203.30
• Numero MDL: MFCD00149781
• Codice UNSPSC: 12352302
• NACRES: NA.21

Proprietà

• Livello qualitativo: 100
• Saggio: 99.999% (trace metals basis)
• Forma fisica: crystalline
• Punto di fusione: 117 °C
• Solubilità: H₂O: soluble (highly soluble); acetone: slightly soluble; alcohols: slightly soluble
• Stringa SMILE: O.O.O.O.O.O.Cl[Mg]Cl
• InChI: 1S/2ClH.Mg.6H2O/h2*1H;;6*1H2/q;;+2;;;;;;/p-2; DHRRIBDTHFBPNG-UHFFFAOYSA-L

Descrizione

Descrizione generale

Magnesium chloride hexahydrate is a colorless to white, crystalline salt. The salt is soluble in water and slightly soluble in ethanol, acetone, and pyridine. The hydrate loses water when heated to higher temperatures, but thermal dehydration to the anhydrous salt is not straightforward. Chemically, magnesium chloride is a weak Lewis acid. One of the most common and simplest routes to producing magnesium chloride is extraction from naturally occurring brine, for example by solar evaporation of sea water, which can be purified by solution chemistries.

Applicazioni

One major application of high-purity magnesium chloride is in the synthesis of layered double hydroxides (LDH), which are high-surface area ionic clays. LDHs are studied for water filtration, among other applications, and usually consist of magnesium and aluminum ions because of the low toxicity of these metal cations. LDHs are synthesized from chloride salts using co-precipitation reactions, ion-exchange processes, and urea methods. Another application of high-purity magnesium chloride is as a reagent to dope or substitute magnesium ions into solid-state materials and nanoparticles. For example, Mg-doping in ZnO has shown to modulate its band structure and Mg-doping in lithium nickel cobalt manganese oxide helps suppress cation mixing and enables longer cycle lifetimes for its use as a cathode material.

Informazioni sulla sicurezza

• Codice della classe di stoccaggio: 13 - Non Combustible Solids
• Classe di pericolosità dell'acqua (WGK): WGK 1
• Punto d’infiammabilità (°F): Not applicable
• Punto d’infiammabilità (°C): Not applicable