Zirconium Metal powder, Grade GH, aqueous suspension

Zr

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

Zirconium Metal powder, Grade GH, 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 manufacture of highly effective getters, usually activated by dehydration; as a zirconium component in powder metallurgy; for flares and tracers in pyrotechnics.

Typical specifications include: Zr + Hf total min. 98.0 %; approx. 2 % (natural content); H 0.8 +/- 0.2 %.

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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 5.5 +/- 1 μm acc. to Blaine, Ignition Point: 215 - 310 °C Combustion Rate: 460 +/- 75 sec/50 cm (Albemarle standard) Gain on Ignition: min. 32.3 % (weight increase by combustion)

Applications

For the manufacture of highly effective getters, usually activated by dehydration as a zirconium component in powder metallurgy for flares and tracers in pyrotechnics.

Specifications

Zr + Hf total min. 98.0 %
Hf approx. 2 % (natural content)
H 0.8 +/- 0.2 %
Ti max. 0.3 %
Si max. 0.3 %
Mg max. 0.2 %
Ca total 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, average particle size; specific surface area and combustion properties; gravimetric analysis of zirconium, verification of nitrogen content and accompanying impurities by special analytical methods.

Handling Instructions

Highly flammable solid. Dust explosion hazard. A mixture of zirconium metal and zirconium hydride powder of high purity and low oxide content. Due to its higher content in hydrogen less ignitable than other 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.