I got hokko bead coils from the GVI factory in late 2006. At the factory
they wash their beads in water and oven dry at 60? degrees. They also
store them in the drying oven. I suspect the logic is to keep
atmospheric water out of them.
Kim Baublys wrote:
> Hi Everyone,
> I’ve been reading all the entries in the Isogeochem archives on
> cleaning of Hokko beads and other Pt catalysts. The last entries were
> over two years ago and I have noticed that there is conflicting advice
> on their cleaning.
> *To summarise the different methods:*
> a) Soaking in methanol and air drying
> b) Wash in distilled water and dry at 60-80 degrees C.
> c) Wash in distilled water and air dry
> Some people have stated that heating at 60 or above hasten the failure
> of the beads.
> What I would like to know is: Is there an accepted method of cleaning
> these days and if so what is it?
> Also does anyone know of a supplier in Australia? Archives stated a
> Japanese company or a Canadian company (AECL?) Or is there now other
> alternative suppliers?
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