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RE: [AGA Member] RE: Potassium
Most chemicals, dry or liquid are often bound with other things to make them
more stable. It's entirely possible, and likely, that different people have
different quality of chemicals which carry more or less of the specific
molecule you want. It all depends on the Grade of chemical you buy and
where the seller got theirs. One seller may have agricultural grade
chemicals, which are less pure, but are cheaper, while another may have
hydroponic and/or laboratory grade chems which are more pure but cost more.
That often explains the differences in color and grain size between one
hobbyists chemicals and anothers.
Hope this helps,
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