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201049

Sigma-Aldrich

Lithium hydride

greener alternative

powder, −30 mesh, ≥95%

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Synonym(s):
LiH
Linear Formula:
LiH
CAS Number:
Molecular Weight:
7.95
EC Number:
MDL number:
UNSPSC Code:
26111700
PubChem Substance ID:
NACRES:
NA.23

Quality Level

assay

≥95%

form

powder

reaction suitability

reagent type: reductant

greener alternative product characteristics

Design for Energy Efficiency
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sustainability

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particle size

−30 mesh

mp

680 °C (lit.)

density

0.82 g/mL at 25 °C (lit.)

greener alternative category

SMILES string

[Li]

InChI

1S/Li.H

InChI key

SIAPCJWMELPYOE-UHFFFAOYSA-N

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General description

Lithium hydride is a simple neutral heteropolar diatomic molecule. It liberates hydrogen upon heating it to temperatures above 500oC. Lithium hydride, like lithium aluminum hydride, exhibits a high gravimetric hydrogen storage capacity. LiH is known to have large specific heat and latent heat of fusion.5
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Application

Lithium hydride may be used as an effective neutron shield for mobile nuclear reactors. LiH may also be used as a rocket fuel, energy storage system, and heat shield.5

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Danger

Hazard Classifications

Acute Tox. 3 Oral - Skin Corr. 1B - Water-react 1

supp_hazards

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges


Certificates of Analysis (COA)

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Thermophysical Properties of Chemicals and Hydrocarbons null
Spectroscopy and structure of the lithium hydride diatomic molecules and ions.
Stwalley WC and Zemke WT
The Journal of Physical Chemistry, 22(1), 87-112 (1993)
Lithium hydride: A space age shielding material
Welch FH
Nuclear Engineering and Design, 26(3), 444-460 (1974)
Volodymyr Gvozdetskyi et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 25(16), 4123-4135 (2019-01-17)
Ternary lithium nickel borides LiNi3 B1.8 and Li2.8 Ni16 B8 have been synthesized by using reactive LiH as a precursor. This synthetic route allows better mixing of the precursor powders, thus facilitating rapid preparation of the alkali-metal-containing ternary borides. This
Kiyotaka Goshome et al.
Molecules (Basel, Switzerland), 24(7) (2019-04-10)
Hydrogenation of a lithium-potassium (double-cation) amide (LiK(NH₂)₂), which is generated as a product by ammonolysis of litium hydride and potassium hydride (LiH-KH) composite, is investigated in details. As a result, lithium amide (LiNH₂) and KH are generated after hydrogenation at

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