product shelf life

[ultramat]

I can not find the information over the net.
What is the shelf life of alumina powder? tantalum oxide, yttrium oxide powders etc?

Thank you.

 

[Ron]

Attached is a bulletin on storage of alumina from The Aluminum Association....

 

[unclesyd]

If by alumina you mean Aluminum Oxide the shelf life is indefinite if kept dry. If you mean Aluminum powder going by the information provided by Ron as reactions with Al powder can get nasty.
The others metal oxides if they are the highest oxidation state should have an indefinite shelf life if kept sealed and dry.
If they are fine powders they may tend to clump unless agitated.

Usually if there is any restrictions on storage it will be on the MSDS data or the product cut sheet.

 

[IRstuff]

Sure, aluminum powder is often added to fuel-air explosives to enhance the explosion.

TTFN

FAQ731-376

 

[EdStainless]

Oxide powders will keep forever if they are dry.

= = = = = = = = = = = = = = = = = = = =
Plymouth Tube

 

[ultramat]

EdStainless,You are great!! Many thanks for all your help.

Thank you, unclesyd. I was interested in metal oxide.

THANK YOU ALL!!!