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ZIRCONIUM HYDRIDE

CAS No.7704-99-6
Chemical Name:ZIRCONIUM HYDRIDE
CBNumber:CB3317727
Molecular Formula:Zr
Formula Weight:91.22
MOL File:7704-99-6.mol

ZIRCONIUM HYDRIDE Property

Density 5.47
solubility insoluble in H2O
form Powder
color gray tetragonal crystals, crystalline
Water Solubility no reaction with H2O [MER06]
Sensitive Moisture Sensitive
Merck 14,10176
CAS DataBase Reference 7704-99-6(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII YHL4O15288
EPA Substance Registry System Zirconium hydride (ZrH2) (7704-99-6)
UNSPSC Code 12352000
NACRES NA.22

Safety

Hazard Codes :F
Risk Statements :11-36/37/38
Safety Statements :24/25-43-7/8
RIDADR :UN 1437 4.1/PG 2
WGK Germany :3
RTECS :ZH8015000
TSCA :Yes
HazardClass :4.1
PackingGroup :II
HS Code :28500090

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal wordDanger
Hazard statements H228-H315-H319-H335
Precautionary statements P210-P302+P352-P305+P351+P338

ZIRCONIUM HYDRIDE Price More Price(4)

Brand: Sigma-Aldrich(India)
Product number: 208558
Product name : Zirconium(II) hydride
Purity: ?325?mesh, 99%
Packaging: 1G
Price: ₹2608.83
Updated: 2022/06/14
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Brand: Sigma-Aldrich(India)
Product number: 208558
Product name : Zirconium(II) hydride
Purity: ?325?mesh, 99%
Packaging: 100G
Price: ₹24865.03
Updated: 2022/06/14
Buy: Buy

Brand: ottokemi
Product number: Z 4455
Product name : Zirconium hydride, 99%
Purity:
Packaging: 1gm
Price: ₹3204
Updated: 2022/05/26
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Brand: ottokemi
Product number: Z 4455
Product name : Zirconium hydride, 99%
Purity:
Packaging: 100gm
Price: ₹30609
Updated: 2022/05/26
Buy: Buy

ZIRCONIUM HYDRIDE Chemical Properties,Usage,Production

Description Zirconium(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.
Chemical Properties Gray-black metallic powder. Stable toward air and water.
Physical properties Grayish-black powder; density 5.60 g/cm³; stable in water; soluble in dilute hydrofluoric acid; soluble in concentrated acids.
Uses Zirconium 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.
Uses 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.
Uses Zirconium 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
Definition Contains 1.7–2.1% combined hydrogen which can be driven off in a vacuum above 600C.
Preparation Zirconium hydride may be prepared by heating zirconium oxide with magnesium in the presence of hydrogen: ZrO₂ + 2Mg + H₂ → ZrH₂ + 2MgO
Alternatively, hydride may be made by heating zirconium oxide with calcium hydride in the presence of hydrogen
Hydride also may be obtained by combining zirconium metal with hydrogen at elevated temperature.
Production Methods Zirconium hydride in powder form was produced by the reduction of zirconium oxide with calcium hydride in a bomb reactor. However, the workup was hazardous and many fires and explosions occurred when the calcium oxide was dissolved with hydrochloric acid to recover the hydride powder. With the ready availability of zirconium metal via the Kroll process, zirconium hydride can be obtained by exothermic absorption of hydrogen by pure zirconium, usually highly porous sponge. The heat of formation is 167.4 J/mol (40 kcal/mol) hydrogen absorbed.
General Description This product has been enhanced for energy efficiency.
Hazard Flammable, dangerous fire risk, especially in the presence of oxidizers.
Flammability and Explosibility Flammable
reaction suitability core: zirconium
reagent type: catalyst
reaction type: Reductions
reagent type: reductant
Safety Profile A powerful reducing agent. Flammable when dry or wet. Very dangerous to handle; can explode. Incandesces when heated in air. See also HYDRIDES and ZIRCONIUM COMPOUNDS.