Dear Bruce


Sorry for the previous empty mails, I hit the wrong button
(magna est vim consuetudinis  =  mighty is the power of
habits).
So here we go:

The chromium we use for the reduction of H2O is:

Cromium Powder, <100 mesh; 99% (metal basis)
EWG Number: 231-157-5.
It comes in 500g Containers. 00672 LOT: L17G25


bought at the distributer:

Alfa, Johnson Matthey, GmbH
A Johnson Matthey company
Zeppelinstrasse 7
76185 Karlsruhe
Germany
Phone:  ++49 721 840 07 0
Fax:    ++49 721 84 96 74


We enclose the chromium in quartz glass tubes of high
purity, which we have produced at a glass blower according
to the specific measures.

I hope this helps you further

Best wishes

Rolf


P.S. Since this might be of interest for other users
I hope you don't mind if I send this to Isogeochem as well


Taylor, Bruce wrote:
>
> Dear Rolf,
>
> I would be interested in learn more about the type and grain size of Cr to
> which you
> recently referred in your ISOGEOCHEM posting.
>
> regards,
> Bruce Taylor
> ************************************
> Bruce E. Taylor, Ph.D.
> Geological Survey of Canada
> 601 Booth Street
> Ottawa, ON  K1A 0E8
> CANADA
>
>    Tel:  613-995-4673 (office); 992-4046 (lab)
>    FAX: 613-996-9820
>    e-mail: [log in to unmask]
> ************************************

--
____________________________________________________________________
Dr. Rolf Siegwolf

Paul Scherrer Institute
CH-5232 Villigen-PSI
Switzerland

Phone:   +41 (0)56 310 27 86
Fax:       +41 (0)56 310 45 25
e-mail:   [log in to unmask]
____________________________________________________________________