Tony Ferguson on tue 12 feb 02
I think its 2 carbonate to 1 oxide.
Thank you!
Tony Ferguson
Stoneware, Porcelain, Raku
www.aquariusartgallery.com
Photographic, Web Site, & Marketing Services for Artists
218-727-6339
315 N. Lake Ave
Apt 401
Duluth, MN 55806
----- Original Message -----
From: "Tom's E-mail"
To:
Sent: Tuesday, February 12, 2002 10:20 PM
Subject: Substitution of cobalt carbonate for cobalt oxide
What is the ratio for substituting cobalt carbonate for cobalt oxide? Thanks
Tom Sawyer
tsawyer@cfl.rr.com
____________________________________________________________________________
__
Send postings to clayart@lsv.ceramics.org
You may look at the archives for the list or change your subscription
settings from http://www.ceramics.org/clayart/
Moderator of the list is Mel Jacobson who may be reached at
melpots@pclink.com.
Tom's E-mail on tue 12 feb 02
What is the ratio for substituting cobalt carbonate for cobalt oxide? =
Thanks
Tom Sawyer
tsawyer@cfl.rr.com
Craig Clark on wed 13 feb 02
I was always told to use twice as much Cobalt Carbonate. This always worked.
Craig Dunn Clark
619 East 11 1/2 st
Houston, Texas 77008
(713)861-2083
mudman@hal-pc.org
----- Original Message -----
From: "Tom's E-mail"
To:
Sent: Wednesday, February 13, 2002 12:20 AM
Subject: Substitution of cobalt carbonate for cobalt oxide
What is the ratio for substituting cobalt carbonate for cobalt oxide? Thanks
Tom Sawyer
tsawyer@cfl.rr.com
____________________________________________________________________________
__
Send postings to clayart@lsv.ceramics.org
You may look at the archives for the list or change your subscription
settings from http://www.ceramics.org/clayart/
Moderator of the list is Mel Jacobson who may be reached at
melpots@pclink.com.
L. P. Skeen on wed 13 feb 02
Cobalt carb is a weaker colorant, so you use 2 of carbonate to 1 of oxide.
:)
----- Original Message -----
From: "Tom's E-mail"
To:
Sent: Wednesday, February 13, 2002 1:20 AM
Subject: Substitution of cobalt carbonate for cobalt oxide
What is the ratio for substituting cobalt carbonate for cobalt oxide? Thanks
Tom Sawyer
tsawyer@cfl.rr.com
____________________________________________________________________________
__
Send postings to clayart@lsv.ceramics.org
You may look at the archives for the list or change your subscription
settings from http://www.ceramics.org/clayart/
Moderator of the list is Mel Jacobson who may be reached at
melpots@pclink.com.
Jonathan Pennington on wed 13 feb 02
I use a bit more than 2 units CoO per 3 units CoCO3.
using molecular weights:
CoO is 74.93, Co is 58.93, (58.93/74.93)*100= 78.64% cobalt
per unit Cobalt Carbonate.
CoCO3 is 118.93, (58.93/118.93)*100= 49.55% cobalt per unit
of cobalt carbonate.
78.64/49.55 = 1.59 units cobalt carbonate per unit of cobalt
oxide.
This is supplied for checking, and as a geologist, boy I
will be *real* embarrassed if I screwed it up! :-)
-J
> What is the ratio for substituting cobalt carbonate for
cobalt oxide? Thanks
> Tom Sawyer
> tsawyer@cfl.rr.com
>
>
____________________________________________________________
__________________
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your
subscription
> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached
at melpots@pclin
| |
|
