Zirconium Metal powder, Grade ZE, aqueous suspension

Zr

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

Zirconium Metal powder, Grade ZE, 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.

Well suited for the manufacture of transmitter tubes as an ultrapure getter material with extremely low gas formation.

Typical specifications include: Zr + Hf total min. 98.8 %; Zr + Hf active min. 95.2 %; 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 4 +/- 1 µm acc. to Blaine, Ignition Point: 250 +/- 50 °C; Combustion Rate: 33 +/- 17 sec/50 cm (Albemarle standard); Specific Surface (BET): 0.6 +/- 0.2 m2/g;Gain on Ignition: min. 33.4 % (weight increase by combustion)

Applications

Well suited for the manufacture of transmitter tubes as an ultrapure getter material with extremely low gas formation.

Specifications

Zr + Hf total min. 98.8 %
Zr + Hf active min. 95.2 %
Hf approx. 2 % (natural content)
Ca total max. 0.5 %
N max. 0.5 %
Si max. 0.2 %
Ti max. 0.15 %
H max. 0.15 %
Cl max. 0.05 %
Ca soluble max. 0.05 %
C max. 0.05 %

Method of Analysis

Verification of properties under vacuum of each lot produced. Determination of gain on ignition, particle size distribution and average particle size; spectral analysis of accompanying impurities. Zirconium content will be calculated using the numbers of the gain on ignition analysis.

Handling Instructions

Highly flammable solid. Dust explosion hazard. An extremely pure, high-grade zirconium metal powder with a high metal content, evolving almost no volatile impurities in high vacuum up to 1,200°C. 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 material 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.