nelsonB - 1-4-2018 at 14:46
hi
i was wondering if anyone here know how pure is the borax from the brand 20 Mule Team. could there be impurety of sodium carbonate and such ?
happyfooddance - 1-4-2018 at 14:58
I highly doubt that there are any carbonates present. I use it to make boric acid, the yields are quantitative, and there is no observable evolution
of carbon dioxide upon addition of HCl.
UC235 - 1-4-2018 at 15:50
It might have some carbonate. There's also some insoluble garbage in my experience. It's pretty easy to hot filter the solution and make nice
crystals. They're quite hard so I don't recommend glass. The bottom of a milk jug makes for easy crystal recovery.
happyfooddance - 1-4-2018 at 16:03
Yeah, always hot filter. The insoluble crap might be cardboard from the inside of the box it gets shipped in. I live only about 150 miles from where
it is mined, so maybe that's why I don't get much "insoluble junk".