LiH — Lithium Hydride
Basic information: lithium hydride is an ionic compound of lithium and hydrogen, formula LiH, described as the lightest known ionic compound. Form: pure LiH is a colorless, transparent glassy solid; commercial material is often white, gray or bluish-gray powder/crystals because of impurities or photodecomposition, and is described as highly deliquescent. Reactivity: a strong reducing agent, extremely moisture-sensitive; relatively stable in dry air at room temperature, but reacts vigorously with water to produce lithium hydroxide and hydrogen. Hydrogen storage: theoretical hydrogen content about 12.7%, releasing hydrogen when heated above 500°C.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Chemical Formula | Typ: LiH |
| CAS Number | Typ: 7580-67-8 |
| Molecular Weight | typical:Approximately 7.95g/mol |
| Appearance | Typ: White Crystal |
| Melting Point | typical:Approximately 680-688°C |
| Density | typical:0.78-0.82g/cm³ |
| Purity | typical:≥99.5% |
| Impurity Control | typical:Sodium (Na) ≤0.9%, Potassium (K) ≤0.05% |
| Thermal Stability | typical:Significant Decomposition Begins at Approximately 800°C |
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