Product: 7704-99-6 Zirconium Hydride

Zirconium Hydride, Grade G

ZrH2

CAS Number:  7704-99-6 EC Number:  231-727-3 REACH Number:  01-2120760629-43-0000

Zirconium Hydride, Grade G (CAS 7704-99-6, molecular formula ZrH2) is an inorganic chemical supplied as a technical-grade material. It is typically a black to grey powder.

For the production of highly effective getters, to be activated by dehydrogenation; as a safe to use component in powder metallurgy; for illumination effects in pyrotechnics. Applicable as hydrogen source for the foaming of metals.

Typical specifications include: Zr + Hf min. 97.6 +/- 0.5 %; approx. 2 % (natural content); H min. 1.9 %.

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Physical and Chemical Properties
Property Value
IUPAC Name
 
Molecular Weight
93.24g/mol
Appearance
Powder
Color
Black To Gray
Boiling Point
(Decomposes below the boiling point.)
Density
5.6 g/cm3 at 25 °C (Information taken from reference works and the literature.)
Bulk Density
1,000 - 2,000 kg/m3
Solubility in Water
< 0.00008 g/l at 23 °C Method: OECD Test Guideline 29
Grain Size
min. min. 99.9 % < 45 µm
Additional Properties
Grain Size min. min. 99.9 % 45 µm average particle size acc. to Blaine 5.5 +/- 1 µm, Ignition Point: 200 - 310 °C Combustion Rate: 1,300 +/- 600 sec/50 cm Gain on Ignition: 31.8 +/- 0.7 % (weight increase by combustion)

Applications

For the production of highly effective getters, to be activated by dehydrogenation as a safe to use component in powder metallurgy for illumination effects in pyrotechnics. Applicable as hydrogen source for the foaming of metals.

Specifications

  • Zr + Hf min. 97.6 +/- 0.5 %
  • Hf approx. 2 % (natural content)
  • H min. 1.9 %
  • Ti max. 0.3 %
  • Si max. 0.5 %
  • Ca total max. 0.15 %
  • Mg max. 0.2 %
  • Fe max. 0.08 %
  • Al max. 0.3 %
  • Cl max. 0.05 %

Method of Analysis

Determination of oxidation value, particle size distribution and average particle size; gravimetric analysis of zirconium, determination of hydrogen content and impurities by special procedures.

Handling Instructions

Highly flammable solid. Dust explosion hazard. A zirconium hydride powder of high purity and low oxide content; due to coarse particle size and hydrogen content less ignitable than other grades. Do not process close to open flame; use ground connected metallic apparatus to prevent sudden ignition by electrostatic discharge; unlimited shelf life; in case of fire, cover only with sand or suitable dry fire extinguishing powder, never use water. See our safety data sheet and special precautionary advice in this delivery program.

Legal Disclaimer

The information presented herein is believed to be accurate and reliable but is presented without guarantee or responsibility on the part of Albemarle Corporation and its subsidiaries and affiliates. It is the responsibility of the user to comply with all applicable laws and regulations and to provide for a safe workplace. The user should consider any health or safety hazards or information contained herein only as a guide and should take those precautions which are necessary or prudent to instruct employees and to develop work practice procedures in order to promote a safe work environment. Further, nothing contained herein shall be taken as an inducement or recommendation to manufacture or use any of the herein materials or processes in violation of existing or future patent.