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Key Documents

201049

Sigma-Aldrich

Lithium hydride

greener alternative

powder, −30 mesh, ≥95%

Synonym(s):

LiH

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About This Item

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
Learn more about the Principles of Green Chemistry.

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

Signal Word

Danger

Hazard Statements

Hazard Classifications

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

Supplementary Hazards

Storage Class Code

4.3 - Hazardous materials which set free flammable gases upon contact with water

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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
Volodymyr Gvozdetskyi et al.
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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
Spectroscopy and structure of the lithium hydride diatomic molecules and ions.
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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)

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