Zirconium hydride
Basic information
- CAS
11105-16-1- Standard SMILES
[ZrH2]- InChIKey
QSGNKXDSTRDWKA-UHFFFAOYSA-N- Molecular formula
- H2Zr
- Average molar mass
- 93.24 g/mol
- Monoisotopic mass
- 91.920349
Overview
Zirconium hydride appears as a grayish black solid. No reaction with water under normal conditions. Easily ignited and burns with an intense flame. Water will increase the intensity of the fire.
Names & identifiers
- Preferred name
- Zirconium hydride
- IUPAC
- zirconium dihydride
- English name
- ZIRCONIUM HYDRIDE
- Molecular formula
- Zr
- Molecular weight
- 91.22
Names & synonyms
Zirconium dihydrideZirconium hydride (ZrH2)UNII-YHL4O15288YHL4O15288EINECS 231-727-3UN1437DTXSID10399770RefChem:196134DTXCID9035062711105-16-17704-99-611105-16-1ZIRCONIUM HYDRIDE
Show more names
ZrH4ZirconiumdihydridZirconium(Ⅱ)bydrideZIRCONIUM(II) HYDRIDEDihydridezirconium(II)ZirconiuM hydride(ZrH2)Dihydrogen zirconium(II) saltZIRCONIUM HYDRIDE, -325 MESH, 99%
ZIRCONIUM HYDRIDE [MI]Zarconium hydrideZirkonhydridZirconium(2+) dihydrideZirconium hydride [UN1437] [Flammable solid]SCHEMBL30081504Zirconium(II) hydride, -325 meshZirconium(II) hydride, -325 mesh, 99%
Database identifiers
- CAS
11105-16-1、7704-99-6- PubChem CID
- 4137802
- DTXSID
DTXSID10399770- UNII
- YHL4O15288
- EC Number
- 231-727-3
Properties
Computed structural properties
- Topological polar surface area
- 0 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 0
- Rotatable bonds
- 0
- Heavy atoms
- 1
- Formal charge
- 0
- Complexity
- 0
Experimental & physicochemical properties
Chemical Classes
Metals -> Metals, Inorganic Compounds
Flammable agents - 3rd degree
SpringerMaterials Propertiesthermal expansion coefficient
Density5.6 @25 °C
Physical Description
Zirconium hydride appears as a grayish black solid. No reaction with water under normal conditions. Easily ignited and burns with an intense flame. Water will increase the intensity of the fire.
Dry Powder
Grey-black metallic solid; [Merck Index] Dark grey odorless powder; [MSDSonline] Inert in air and water at room temperature; [Ullmann]
Physicochemical properties
- Density
- 5.47 · 5.47
- solubility
- 2 O · insoluble in H2O
- form
- Powder
- color
- gray tetragonal crystals, crystalline
- Water Solubility
- 2 O · no reaction with H2O [MER06]
- Specific Heat Capacity
- 0.34 J/ · Cp(crystal): 0.34 J/(g·K), at 25℃
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
GHS classification
GHS Classification
Danger
H228 (64.8%): Flammable solid [Danger Flammable solids]
P210, P223, P231+P232, P240, P241, P261, P264, P264+P265, P271, P280, P302+P335+P334, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P370+P378, P402+P404, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 71 reports by companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Regulatory Information
Zirconium hydride (ZrH2) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Zirconium hydride (ZrH2) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
REACH registered substance: Zirconium dihydride (EC: 231-727-3)
The New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.)
DOT LabelFlammable Solid
Fire Hazards
Excerpt from ERG Guide 138 [Substances - Water-Reactive (Emitting Flammable Gases)]:
· Produce flammable gases on contact with water.
Health Hazards
Excerpt from ERG Guide 138 [Substances - Water-Reactive (Emitting Flammable Gases)]:
· Inhalation or contact with vapors, substance or decomposition products may cause severe injury or death.
Hazards Summary
Chemistry & industry
Uses & manufacturing
Uses
Used as a metal foaming agent, nuclear moderator, reducing agent, and catalyst; [Hawley] Has been used as a moderator in nuclear reactors; Also used in storage batteries; [Ullmann]
Battery Manufacturing [Category: Industry]
U.S. Production2023: <50,000 lb
Industry UsesAlloys
General Manufacturing Information
Primary Metal Manufacturing
Zirconium hydride (ZrH2): ACTIVE
Applications
DescriptionZirconium(II) hydride, ZrH2, is a molecular chemical compound, which has been produced by laser ablation and isolated at low temperature. Zirconium(II) hydride has a dihedral (C2v) structure. In zirconium(II) hydride, the formal oxidation states of hydrogen and zirconium are 21 and 12, respectively, since the electronegativity of zirconium is lower than that of hydrogen. The stability of metal hydrides with the formula MH2 (M 5 Ti-Hf) decreases as the atomic number increases.
UsesZirconium Hydride, ZrH2, is a brittle, metallicgray solid that is stable in air and water, and has a density of 5.6 g/cm3. The chemical properties of ZrH2 closely resemble those of titanium hydride. Commercial uses are as a getter in the manufacture of vacuum tubes and other systems; as a hydrogen source for foaming metals; as a hydrogen reservoir; for the introduction of zirconium into powdered alloys; for metal–ceramic and metal–metal bonding; as a moderator in nuclear reactors; and as a source of Zr metal powder and alloys.
UsesZirconium hydride is a powerful reducing agent in acid solution or at high temperatures; hydrogenation catalyst; in the vacuum tube industry.Also, it is used as a source of pure hydrogen and a catalyst in hydrogenation reactions. Some other applications are in powder metallurgy; as a moderator in nuclear reactors; and as a metal-foaming agent
Zirconium(II) hydride (ZrH2) can be used as a precursor for:Reactive hot-pressing synthesis of Zr2SC ceramics by displacement reaction with the mixture of ZrC and ZrS2.,·The synthesis of Mg-Zr hydrides by treating with MgH2 for hydrogen storage. The preparation of layer structured β-zirconium nitride chloride (ZrNCl) by reacting with NH4Cl.
Related reactions
0 records
No reaction records under the current filter.
Compound notes
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