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
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)
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 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.
N-Bromosuccinimide Price
- Product number
- 208558
- Product name
- Zirconium(II) hydride
- Purity
- 325 mesh, 99%
- Packaging
- 100g
- Price
- $452
- Updated
- 2024/03/01
- Product number
- 208558
- Product name
- Zirconium(II) hydride
- Purity
- 325 mesh, 99%
- Packaging
- 1g
- Price
- $43.6
- Updated
- 2023/06/20
- Product number
- 047203
- Product name
- Zirconium hydride
- Purity
- 99%
- Packaging
- 10g
- Price
- $33.1
- Updated
- 2023/06/20
- Product number
- 047203
- Product name
- Zirconium hydride
- Purity
- 99%
- Packaging
- 50g
- Price
- $130
- Updated
- 2023/06/20
- Product number
- 047203
- Product name
- Zirconium hydride
- Purity
- 99%
- Packaging
- 250g
- Price
- $569
- Updated
- 2023/06/20
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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