Thread: Phosphate Opal
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Old 12-05-2006, 07:08 AM
Pete VanderLaan's Avatar
Pete VanderLaan Pete VanderLaan is offline
The Old Gaffer
Join Date: Apr 2002
Location: Chocorua New Hampshire
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Bob Held did some good work on this back around 1973 and demonstrated that up to ( not exceeding) 5% phosphate would still be compatible. I did melt it and it did work and it was troublesome. We usd this old stuff mark Peiser had called Bone Ash 21 which is long gone. It was a genuine bone Ash, not a synthetic. . I do think that if you use Sodium triphosphate, it would help to back off of sodium somwhere else.

The devit is clearly an issue and I agree with john that lead would help here but it is lead...

And John, obviously we got around your posting problem on the board. Good to see you here being my fussy conscience.
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