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      Ceramic Arts Network is looking for two new forum moderators for the Clay and Glaze Chemistry and Equipment Use and Repair sections of the Ceramic Arts Network Community Forum. We are looking for somebody who is an active participant (i.e. somebody who participates on a daily basis, or near daily) on the forum. Moderators must be willing to monitor the forum on a daily basis to remove spam, make sure members are adhering to the Forum Terms of Use, and make sure posts are in the appropriate categories. In addition to moderating their primary sections, Moderators must work as a team with other moderators to monitor the areas of the forum that do not have dedicated moderators (Educational Approaches and Resources, Aesthetic Approaches and Philosophy, etc.). Moderators must have a solid understanding of the area of the forum they are going to moderate (i.e. the Clay and Glaze Chemistry moderator must be somebody who mixes, tests, and has a decent understanding of materials). Moderators must be diplomatic communicators, be receptive to others’ ideas, and be able to see things from multiple perspectives. This is a volunteer position that comes with an honorary annual ICAN Gold membership. If you are interested, please send an email outlining your experience and qualifications to jharnetty@ceramics.org.
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J. Shiloh Gastello

Transfer of Toxic Airborne Manganese Fumes: Kiln to Pool

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Hello everyone,

 

I am test firing cassius basaltic clay, which releases the dangerous neurotoxin manganese during the firing and the only outlet that is available in a safe location (away from people) is near a pool. I researched manganese and found that this dangerous neurotoxin does mix with water, but the articles did not specify if airborne manganese "fumes" mix with water. To be more specific, Is it possible for excessive amounts of toxic manganese fumes to escape into the pool during the firing?

 

Assistance would be much appreciated.

 

Thank you.

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Guest JBaymore
I am test firing cassius basaltic clay, which releases the dangerous neurotoxin manganese during the firing and the only outlet that is available in a safe location (away from people) is near a pool. I researched manganese and found that this dangerous neurotoxin does mix with water, but the articles did not specify if airborne manganese "fumes" mix with water. To be more specific, Is it possible for excessive amounts of toxic manganese fumes to escape into the pool during the firing?

 

"Fumes" are actually very fine particulates, not gases. The particulates will settle out of the effluent when they are no longer suspended by the action of the molecules of the air. They are very fine, so this likely will happne far from the kiln's stack exit point as the hot gases disipate into the surrounding cooler air.

 

The partioculates of course coule be mixed into the water....just like any dust of anything might. Water is not a solute for manganese dioxide (manganese dioxide does not disolve in water). I'd be more concerened about any potential inhalation issues for the fumes rather than worry about skin contact from particles suspended in water. Inges tion might be more of an issue.... except that no one is deliberately going to be drin king large quantities of pool water..... and the concentration you might get there is going to likely be very low.

 

best,

 

.................john

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