Kristin Conrad on wed 17 apr 96
In the past year, I have been working on mixing my own glazes. From books
(James Chappell's, "The Complete Book of Clay and Glazes") I understand
that an alkaline base glaze will affect the colorants differently than a
non-alkaline
(base?) base glaze. My question is, how could I look at the formula and
have an idea which it would be? Are there "tell-tale" ingredients? Do I
need to put the glaze into the Unity formula (which I have not learned to
do, yet)?
Kristin Conrad
(who spent a dull High school Chemistry class burning hair in the bunson
burners, and trying to melt gummy bears in acid. Gummy bears, by the way,
are indestructible. But that's another story.....)
Rollinsville, CO
GURUSHAKTI@aol.com on thu 18 apr 96
Kristin:
some of the alkaline materials are potassium, sodium, lithium. The Alkali
earths are barium, calcium and magnesium. Some of the acid materials are
silica, tin, titanium. and then there is a group on neutral oxides like
boron. This is only a partial list. I am sure there are others more
knowledgeable in these matter who could provide a more complete breakdown of
the various materials.
June
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