7704-99-6

Name ZIRCONIUM HYDRIDE
CAS 7704-99-6
EINECS(EC#) 231-727-3
Molecular Formula H2Zr
MDL Number MFCD00148878
Molecular Weight 93.24
MOL File 7704-99-6.mol
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Chemical Properties

Definition Contains 1.7–2.1% combined hydrogen which can be driven off in a vacuum above 600C.
Appearance Gray-black metallic powder. Stable toward air and water.
density  5.47
solubility  insoluble in H2O
form  Powder
color  gray tetragonal crystals, crystalline
Water Solubility  no reaction with H2O [MER06]
Specific Heat Capacity Cp(crystal):0.339838J/(g·K),at 25℃
Sensitive  Moisture Sensitive
Merck  14,10176
InChI InChI=1S/Zr
InChIKey QCWXUUIWCKQGHC-UHFFFAOYSA-N
SMILES [Zr]
CAS DataBase Reference 7704-99-6(CAS DataBase Reference)
EPA Substance Registry System Zirconium hydride (ZrH2) (7704-99-6)

Safety Data

Hazard Codes  F
Risk Statements 
R11:Highly Flammable.
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S24/25:Avoid contact with skin and eyes .
S43:In case of fire, use ... (indicate in the space the precise type of fire-fighting equipment. If water increases the risk add-Never use water) .
S7/8:Keep container tightly closed and dry .
RIDADR  UN 1437 4.1/PG 2
WGK Germany  3
RTECS  ZH8015000
TSCA  Yes
REACH Registrations Active
HazardClass  4.1
PackingGroup  II
HS Code  28500090
Storage Class 4.1B - Flammable solid hazardous materials
Hazard Classifications Eye Irrit. 2
Flam. Sol. 1
Skin Irrit. 2
STOT SE 3
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.

Hazard Information

Material Safety Data Sheet(MSDS)

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