Product: 7704-99-6 Zirconium Hydride

Zirconium Hydride, Grade F

ZrH2

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

Zirconium Hydride, Grade F (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.

Mixed with oxidizing agents a constituent in compositions for flares, fuzes and combustion charges in pyrotechnics; as a binding or brazing component for grinding agents, carbides, ceramics and metal in abrasive wheels and polishing disks. Applicable as hydrogen source for the foaming of metals.

Typical specifications include: total 95.1 - 96.6 %; approx. 2 % (natural content); H min. 1.4 %.

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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. 99.9 % < 45 μm by sieving
Additional Properties
Grain Size min. 99.9 % 45 μm by sieving, APS 2.3 +/- 0.5 μm acc. to Blaine, Combustion Rate: 350 +/- 60 sec/50 cm (Albemarle standard) Gain on Ignition: 29.5 +/- 1.0 % (weight increase by combustion)

Applications

Mixed with oxidizing agents a constituent in compositions for flares, fuzes and combustion charges in pyrotechnics as a binding or brazing component for grinding agents, carbides, ceramics and metal in abrasive wheels and polishing disks. Applicable as hydrogen source for the foaming of metals.

Specifications

  • Zr + Hf total 95.1 - 96.6 %
  • Hf approx. 2 % (natural content)
  • H min. 1.4 %
  • Si max. 0.6 %
  • Mg max. 0.3 %
  • Ti max. 0.15 %
  • Al max. 0.2 %
  • Fe max. 0.1 %
  • Ca max. 0.1 %

Method of Analysis

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

Handling Instructions

Highly flammable solid. Dust explosion hazard. A stable hydride powder which burns at red heat; less ignitable than a comparable zirconium powder. Keep away from flames, sparks and heat sources; use ground-connected metallic apparatus to avoid sudden ignition by electrostatic discharge; wear gloves, a face shield or goggles; in case of fire, cover only with sand, limestone or with a dry extinguishing powder suitable for metal fires class D; DO NOT USE WATER! Refer to our safety data sheet and special precautionary advice for specific safety information!

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.