Metal rare earth element Pr sealed and preserved For Sale
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Metal rare earth element Pr sealed and preserved:
$8.99
Metal 镨 glass seal rare earth element 镨 Pr about 3 g / support Lanthanum is a rare earth metal. The element name is derived from Greek and the original meaning is ‘green’. The unit cell is a hexagonal unit cell. Helium is more resistant to corrosion in the air than helium and neon, but exposure to air produces a layer of green oxide that must be preserved in mineral oil or sealed plastic. One of the uses of antimony is for the catalytic cracking of petroleum. The preparation of a petroleum cracking catalyst by adding zeolite molecular sieves in the form of a ruthenium-rich concentrate can improve the activity, selectivity and stability of the catalyst.
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Country
Shipping time
Note
USA ,Russia
5-12 working days
≥20 days, contact me
Australia, Canada, United Kingdom
15-25 days, sometimes 30 days
≥30 days, contact me
France
15-28 days, sometimes 30-35 days
≥35 days, contact me
Brazil, Spain
20-40 days, sometimes 40-45 days
≥45 days, contact me
Other country
Normally 25-30 days to reach
≥30 days, contact me
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