iandol on mon 2 jun 03
Dear Friends,
I think some of us may be missing the point on this one. If Anhydrous =
Sodium Carbonate is being used it must be mixed in with your dry =
ingredients very thoroughly and evenly to get a uniform mixture.
If Anhydrous Sodium Carbonate is added to water a chemical reaction =
starts which results in the crystallisation of Sodium Carbonate Deca =
Hydrate. This means that ten molecules of water join with one molecule =
of anhydrous Sodium Carbonate. Hence the big lump in the bucket. You may =
be able to get the salt to go back into solution if you raise the =
temperature. The deca hydrate should dehydrate above 34 deg Celsius.
Best regards,
Ivor Lewis.
Wondering what is meant by the phrase "Teaching Glaze Chemistry".
Klyf Brown on tue 3 jun 03
Ivor,
I think the phrase about teaching glaze chemestry is what you do on
this list all the time.
I have learned much from your posts.
Thank you for your continued posts, and also the way you post,
without demeaning.
Klyf Brown in New Mexico usa
6/1/03 11:55:52 PM, iandol wrote:
>Dear Friends,
>
>Best regards,
>Ivor Lewis.
>Wondering what is meant by the phrase "Teaching Glaze
Chemistry".
Klyf Brown in New Mexico usa
Lee Love on wed 4 jun 03
----- Original Message -----
From: "iandol"
>bucket. You may be able to get the salt to go back into solution if you raise
the >temperature. The deca hydrate should dehydrate above 34 deg Celsius.
I've made the mistake of adding soda after a glaze has been mixed up and wetted
(wanted to see how soda ash would change a test.) What you can do with the
crystals is sieve them out and put them in a pan with some water from the top of
the settled glaze and then heat on the stove. You can then add the
"de-crystaled" soda ash water back into the glaze bucket.
--
Lee In Mashiko, Japan Ikiru@hachiko.com
"We can only wait here, where we are in the world, obedient to its processes,
patient in its taking away, faithful to its returns. And as much as we may
know, and all that we deserve of earthly paradise will come to us."
Wendell Berry , Full Quote: http://www1.ocn.ne.jp/~ikiru/berry.html
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