695254

Calcium borohydride

• Formule linéaire : Ca(BH₄)₂
• Numéro CAS: 17068-95-0
• Poids moléculaire : 69.76
• Numéro MDL: MFCD00015973
• Code UNSPSC : 26111700
• ID de substance PubChem : 329761727
• Nomenclature NACRES : NA.23

Propriétés

• Forme: powder
• Pertinence de la réaction: reagent type: reductant
• Caractéristiques du produit alternatif plus écologique: Design for Energy Efficiency; Learn more about the Principles of Green Chemistry.
• sustainability: Greener Alternative Product
• Autre catégorie plus écologique: , Enabling
• Chaîne SMILES: [BH4-].[BH4-].[Ca++]
• InChI: 1S/2BH4.Ca/h2*1H4;/q2*-1;+2
• Clé InChI: MOUPUCLGEWXWHJ-UHFFFAOYSA-N

Description

Description générale

Calcium borohydride may be prepared using several techniques:

• by reacting diborane with calcium hydride/alkoxides
• by ball milling CaCl₂ and NaBH₄, resulting in an exchange reaction
• by exchange reaction between CaCl₂ and NaBH₄ in THF

Ca(BH₄)₂ decomposes partially at 360^oC and completely at 500^oC.Ca(BH₄)₂ finds use in fuel cell, a study reports the lowering of hydrogen release temperature and pressure, by using TiCl₃ as dopant.

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency. Find details here.

Application

Metal Borohydrides as Hydrogen Storage Materials

Calcium borohydride is a complex alkali earth metal borohydride, which has high gravimetric and volumetric hydrogen densities. It has a theoretical hydrogen capacity of 11.6 wt% and a low-reaction enthalpy of 32 kJ/mol H₂. It can be used for greener applications, which include reversible hydrogen storage.

Informations sur la sécurité

• Pictogrammes: GHS02,GHS06,GHS05
• Mention d'avertissement: Danger
• Mentions de danger: H261,H301 + H311 + H331,H314
• Conseils de prudence: P231 + P232 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Classification des risques: Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Skin Corr. 1B - Water-react 2
• Risques supp: EUH014
• Code de la classe de stockage: 4.3 - Hazardous materials which set free flammable gases upon contact with water
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable
• Équipement de protection individuelle: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges