Calcium hydride is the chemical compound with the formula CaH2. This grey powder (white if pure, which is rare) reacts vigorously with water liberating hydrogen gas. CaH2 is thus used as a drying agent, i.e. a desiccant.
CaH2 is a saline hydride, meaning that its structure is salt-like. The alkali metals and the alkaline earth metals all form saline hydrides. A well-known example is sodium hydride, which crystallizes in the NaCl motif. These species are insoluble in all solvents with which they do not react because they have extended structures. CaH2 crystallizes in the PbCl2 (cotunnite) structure.
Read more about Calcium Hydride: Preparation, Use As A Desiccant, Use For Hydrogen Production
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Calcium Hydride - Use For Hydrogen Production
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... fountains Ferrosilicon – iron-silicon alloy, used in some mixtures, sometimes replacement of calcium silicide Manganese – used to control burn rates, e.g ... in delay compositions Zirconium-nickel alloy – used in some military delay compositions Metal hydrides (lower heat of combustion than pure metals, but increased sensitivity/reactivity to water) Titanium(II ... Phosphorus trisulfide – used to make matches Calcium phosphide – liberates phosphine when wet, used in some naval signal flares Potassium thiocyanate Carbon-based ...
... fountains Ferrosilicon – iron-silicon alloy, used in some mixtures, sometimes replacement of calcium silicide Manganese – used to control burn rates, e.g ... in delay compositions Zirconium-nickel alloy – used in some military delay compositions Metal hydrides (lower heat of combustion than pure metals, but increased sensitivity/reactivity to water) Titanium(II ... Phosphorus trisulfide – used to make matches Calcium phosphide – liberates phosphine when wet, used in some naval signal flares Potassium thiocyanate Carbon-based ...