Cynthia Gehr on tue 6 oct 98
Monona- Concerning your question if boric acid and borax are toxic for
tableware, the answer is no. According to Ceramic Handbook: A Guide to Glaze
Calculation, Materials, and Processes by Charles Mckee (by the way a good
refrence book!). I strongly suggest to look this book up to help you. Also,
borax is a soluble, so store in an airtight container because when the water
evaporates so does the borax. Good luck with glazing and don't be afraid to
use the boron family!!!
Cyndi (cyngehr@ufl.edu)
BAK!BAK!
Louis Katz on wed 7 oct 98
I wouldn't consider "The Ceramics Handbook" , McKee published in 1984 a source
of information on glaze safety.
In this book Pottassium dichromate is mentioned as a colorant with no mention of
safety, ... same with Uranium Oxide, Cadmium sulfide, Selenium Oxide etc.
Perhaps there is a new edition, but you perhaps should ask, "where did he get hi
information". By the way I do occasionaly use the book and it is one of a stack
that I lend to students interested in Glaze Calc.
Louis
> ----------------------------Original message----------------------------
> Monona- Concerning your question if boric acid and borax are toxic for
> tableware, the answer is no. According to Ceramic Handbook: A Guide to Glaze
> Calculation, Materials, and Processes by Charles Mckee (by the way a good
> refrence book!). I strongly suggest to look this book up to help you. Also,
> borax is a soluble, so store in an airtight container because when the water
> evaporates so does the borax. Good luck with glazing and don't be afraid to
> use the boron family!!!
--
Louis Katz
lkatz@falcon.tamucc.edu
http://www2.tamucc.edu/lkatz/lkatz/
(512) 994-5987
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