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686069

Sigma-Aldrich

Titanium(II) hydride

greener alternative

hydrogen-storage grade

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About This Item

Linear Formula:
TiH2
CAS Number:
7704-98-5
Molecular Weight:
49.88
EC Number:
231-726-8
MDL number:
MFCD00151301
UNSPSC Code:
26111700
PubChem Substance ID:
329761019
NACRES:
NA.23

grade

hydrogen-storage grade

form

powder

autoignition temp.

437 °F

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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mp

>400 °C (dec.)

density

3.91 g/mL at 25 °C (lit.)

greener alternative category

Enabling,

SMILES string

[H][Ti][H]

InChI

1S/Ti.2H

InChI key

COEYXIBLSAIEKV-UHFFFAOYSA-N

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General description

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

TiH2 was used as intermetallic precursor for the preparation of Ti3AlC2 by self-propagating high temperature synthesis (SHS).1 TiH2 may be added to MgH2 to decrease the enthalpy and entropy of the absorption and desorption of hydrogen.
Titanium(II) hydride (TiH2) is a non-stoichiometric compound that can be used in the enhancement of fracture by localized plastic deformation and brittle fracture for titanium and titanium alloy. It can be used in the hydrogen evolution and hydrogen storage. It can also be used in the foaming of aluminum due to its decomposition temperature closer to aluminum′s melting point.

Analysis Note

XRD plots and metal purity data are available upon request.

Pictograms

Flame
GHS02

Signal Word

Danger

Hazard Statements

H228

Hazard Classifications

Flam. Sol. 1

Storage Class Code

4.1B - Flammable solid hazardous materials

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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High ramp rate thermogravimetric analysis of zirconium (II) hydride and titanium (II) hydride
Licavoli JJ and Sanders PG
Thermochimica Acta, 616(43), 1-8 (2015)
The Mechanical Properties of Compact Titanium Produced from Titanium Hydride Powders Using Self-Propagating High-Temperature Synthesis
Dekhtyar AI, et al.
Powder Metallurgy and Metal Ceramics, 53(9-10), 549-556 (2015)
Hydrogen storage properties of nanosized MgH2- 0.1 TiH2 prepared by ultrahigh-energy- high-pressure milling
Lu J, et al.
Journal of the American Chemical Society, 131(43), 15843-15852 (2009)
Mechanical properties of titanium hydride
Xu JJ, et al.
Journal of alloys and compounds, 436(1-2), 82-85 (2007)
Effect of Ti intermetallic catalysts on hydrogen storage properties of magnesium hydride
Zhou C, et al.
The Journal of Physical Chemistry, 117(25), 12973-12980 (2013)

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