ZIRCONIUM HYDRIDE

ChemicalBook > CAS DataBase List > ZIRCONIUM HYDRIDE

Product Name: ZIRCONIUM HYDRIDE
CAS No.: 7704-99-6
Chemical Name: ZIRCONIUM HYDRIDE
Synonyms: ZrH4;ZIRCONIUM HYDRIDE;Zirconiumdihydrid;Zirconium(Ⅱ)bydride;zirconium dihydride;ZIRCONIUM(II) HYDRIDE;Dihydridezirconium(II);ZirconiuM hydride(ZrH2);Dihydrogen zirconium(II) salt;ZIRCONIUM HYDRIDE, -325 MESH, 99%
CBNumber: CB3317727
Molecular Formula: Zr
Formula Weight: 91.22
MOL File: 7704-99-6.mol

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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)
EPA Substance Registry System: Zirconium hydride (ZrH2) (7704-99-6)

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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

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H228Flammable solid

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 208558
Product name: Zirconium(II) hydride
Purity: 325 mesh, 99%
Packaging: 100g
Price: $452
Updated: 2024/03/01

Sigma-Aldrich

Product number: 208558
Product name: Zirconium(II) hydride
Purity: 325 mesh, 99%
Packaging: 1g
Price: $43.6
Updated: 2023/06/20

Alfa Aesar

Product number: 047203
Product name: Zirconium hydride
Purity: 99%
Packaging: 10g
Price: $33.1
Updated: 2023/06/20

Alfa Aesar

Product number: 047203
Product name: Zirconium hydride
Purity: 99%
Packaging: 50g
Price: $130
Updated: 2023/06/20

Alfa Aesar

Product number: 047203
Product name: Zirconium hydride
Purity: 99%
Packaging: 250g
Price: $569
Updated: 2023/06/20

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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

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.

ZIRCONIUM HYDRIDE Preparation Products And Raw materials

Raw materials

Preparation Products

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7704-99-6, ZIRCONIUM HYDRIDERelated Search:

Zirconium Barium zirconate SODIUM ZIRCONATE CADMIUM ZIRCONATE Zirconium fluoride Cyclopentadienylzirconium trichloride LITHIUM ZIRCONATE ZIRCONIUM DINITRATE OXIDE Zirconium oxychloride ZIRCONIUM OXIDE ZIRCONIUM(IV) ACETYLACETONATE TETRAKIS(DIETHYLAMINO)ZIRCONIUM Bis(cyclopentadienyl)zirconium dichloride Zirconium tetrachloride ZIRCONIUM(IV) ETHOXIDE Calcium zirconate ZIRCONIUM TRIFLUOROACETYLACETONATE MAGNESIUM ZIRCONATE

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Zirconium(Ⅱ)bydride

ZIRCONIUM(II) HYDRIDE

ZIRCONIUM HYDRIDE, -325 MESH, 99%

Zirconiumhydride,99.7%(metalsbasis)

ZIRCONIUM HYDRIDE

Dihydridezirconium(II)

Dihydrogen zirconium(II) salt

ZrH4

ZirconiuM hydride(ZrH2)

Zirconium hydride, 99.5% trace metals basis

Zirconiumdihydrid

ZIRCONIUM HYDRIDE ISO 9001：2015 REACH

Zirconium hydride, nanopowder, APS 1-5 μm, 99%+

Zirconium hydride, nanopowder, APS 1-5 μm

7704-99-6

H2ZR

ZrH2

Metal Hydrides

Reduction

Synthetic Reagents

Catalysis and Inorganic Chemistry

Materials for Hydrogen Storage

Metal HydridesAlternative Energy

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Reduction

Synthetic Reagents

Zirconium