Zirconium Metal powder, Grade CX, aqueous suspension

Zr

CAS Number: 7440-67-7 EC Number: 231-176-9 REACH Number: 01-2119490102-49-0004

Zirconium Metal powder, Grade CX, aqueous suspension (CAS 7440-67-7, molecular formula Zr) is an inorganic chemical supplied as a technical-grade material. It is typically a black to gray suspension.

For the production of highly reactive and quick fuze compositions in pyrotechnics for use in ammunition, explosives, airbags and safety belt pretensioners; for the manufacture of photographic flash cubes.

Typical specifications include: Zr total + Hf total 97.5 +/- 0.9 %; Zr active + Hf active 90.2 +/- 3.6 %; approx. 2 % (natural content).

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Physical and Chemical Properties

Property Value

IUPAC Name

zirconium

Appearance

Suspension

Color

Black To Gray

Boiling Point

3,577 °C (Zirconium)

Density

6.43 g/cm3 at 20 °C Method: OECD Test Guideline 109 (Zirconium)

Solubility in Water

(practically insoluble)

Grain Size

min. 99.9 % < 45 μm by sieving

Additional Properties

Grain Size min. 99.9 % 45 μm by sieving APS 1.7 +/- 0.5 μm acc. to Blaine, Auto ignition temperature: 180 °C +- 30 °C,;Burning rate: 5.5 s/50 cm +-2.5 s/50 cm

Applications

For the production of highly reactive and quick fuze compositions in pyrotechnics for use in ammunition, explosives, airbags and safety belt pretensioners for the manufacture of photographic flash cubes.

Specifications

Zr total + Hf total 97.5 +/- 0.9 %
Zr active + Hf active 90.2 +/- 3.6 %
Hf approx. 2 % (natural content)
H max. 0.2 %
Fe max. 0.07 %
Ca max. 0.05 %

Method of Analysis

Determination of oxidation value, particle size distribution, average particle size; specific surface area and combustion properties; gravimetric analysis of zirconium, verification of nitrogen content and accompanying impurities by special analytical methods. For specific information on our standard methods of testing see the special metals sales program.

Handling Instructions

Highly flammable solid. Dust explosion hazard. An ultra-fine, high grade zirconium powder which ignites very easily and rapidly burns off at white heat. Highly ignitable product with very short combustion rate. Most ignitable product among the metal powder grades. Keep away from flames, sparks and heat sources; use ground- connected metallic apparatus to avoid sudden ignition by electrostatic discharge; self-ignition is possible; vacuum-drying of suspensions not recommended; 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.