irrfin

I appreciate all the feedback. I purchased a copy of 1951 Parmelee which has some good information. I will reach out to Singer this fall. I got some interesting results I will post on my website in the coming weeks: www.andrewirvineart.com My show opens this Friday, 9/4/2015 if anyone is in the San Jose CA area.

Here's a crazy old one about lead glaze: https://archive.org/details/leadglazedpotter00barbrich

Sodium Uranate: https://en.wikipedia.org/wiki/Sodium_uranate A fun and important website for all toxin consideration: http://toxnet.nlm.nih.gov/ Uranium: http://toxtown.nlm.nih.gov/text_version/chemicals.php?id=90 http://digitalfire.com/4sight/hazards/ceramic_hazard_uranium_325.html Lead: http://www.niehs.nih.gov/health/topics/agents/lead/ Mn: (an interesting start to deeper research): http://www.ncbi.nlm.nih.gov/pubmed/25549921

Pure PbCO3 (carbonate), Pb3O4 (minium) and PbCrO4 (chromate or Yellow lead). I am not working with Pb frits, but the actual compounds themselves.

I have a personal connection that has allowed me to acquire various types of lead compounds. Sodium Uranate is a sodium salt of an uranium oxyanion (uranium oxide polyatomic ion) commonly called yellow uranium oxide. Again, my acquisition of this material is through a personal connection.

This is my first post to the forum. I am a ceramic sculpture working with exotic and sometimes controversial metals. I am also an experienced chemistry teacher with a BS in chemistry. I am well aware of the health concerns related to using lead as a glaze ingredient. I take the appropriate precautions so please save your time if you are going to lecture me about safety or try to convince me I shouldn't use the material. My work is strictly sculptural (display wall pieces) and I make the presence of toxic chemicals in my surfaces very clear to potential buyers. I am not interested i