Originally Posted by
splanken
Right - finally venturing out into Pyro with the purchase of Gordon's Pyro Bible. I am mixing the stock B and find myself unable to determine if the sodium metaborate is the tetrahydrate or octahydrate. Both are commonly sold...the FW of the tetrahydrate is 137 and octahydrate is 209 (roughly...). His recipe calls for 300g...quite a lot to dissolve in 1L of water...
I have tatrahydrate...if he used octahydrate I only need to use 197 of tetrahydrate to get an equimolar amount....
I am sure someone has been through this before. Ant takers?
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