tag:blogger.com,1999:blog-6638497050839732163.post2841002368958374796..comments2024-03-28T20:37:07.097-04:00Comments on North Carolina Clay Club: They're all the same.Amy Wallerhttp://www.blogger.com/profile/04965597757961207665noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-6638497050839732163.post-70131462200717440312011-12-13T13:25:00.050-05:002011-12-13T13:25:00.050-05:00Probably a lot like humans, they are all the same ...Probably a lot like humans, they are all the same except when you have to spend time alone with them in a room.....John Britthttps://www.blogger.com/profile/14929341797146345976noreply@blogger.comtag:blogger.com,1999:blog-6638497050839732163.post-70171144050955055602011-12-13T12:31:21.595-05:002011-12-13T12:31:21.595-05:00Just wanted to say this is awesome. Thanks for sha...Just wanted to say this is awesome. Thanks for sharing those photos.Amy Wallerhttps://www.blogger.com/profile/04965597757961207665noreply@blogger.comtag:blogger.com,1999:blog-6638497050839732163.post-16470101426498896132011-12-13T10:49:15.951-05:002011-12-13T10:49:15.951-05:00I fired them in reduction - my R1 cycle.
Barium c...I fired them in reduction - my R1 cycle.<br /><br />Barium carbonate is toxic but if it is in a glaze that has enough silica and alumina it won't leach. I have had this glaze tested numerous times for my book and it doesn't leach. It is only 1.9%. Now if you had a glaze with 15% - 50% barium carbonate you would have problems. Or if you added copper carbonate that would exacerbate the leaching. <br /><br />Almost all ceramic colorants are toxic, cobalt, chrome, manganese, nickel, copper, etc. You don't stop using them do you? No, but you learn what, why and how they are toxic and take proper precautions. <br /><br />Just my take on it.John Britthttps://www.blogger.com/profile/14929341797146345976noreply@blogger.comtag:blogger.com,1999:blog-6638497050839732163.post-52395071643616611002011-12-13T08:48:35.891-05:002011-12-13T08:48:35.891-05:00I would love to show this article to people who as...I would love to show this article to people who ask if we've changed the glaze recipes because the pieces look slightly different from one firing to the next. This really shows how they can act differently. <br />Remind us of how you fired them (ox, reduction...?)<br />ThanksLori Buffhttps://www.blogger.com/profile/00233955188892423314noreply@blogger.comtag:blogger.com,1999:blog-6638497050839732163.post-77873895727126480962011-12-13T00:35:16.425-05:002011-12-13T00:35:16.425-05:00Why do potters use glazes containing Barium Carbon...Why do potters use glazes containing Barium Carbonate? I thought it is unsafe to use , especially inside functional ware e.g cups that people may use for juice, etc.<br />Can you please give me your opinion on this John.Thank you.<br />Marion.Anonymousnoreply@blogger.com