Hey Shao,
Do you by any chance know what grade it is, or what % purity? You usually don't get that from the store bought either besides reef pure. The reason I ask, I use to work in a lab, and all chemicals we worked with had the % purity, and COA's, etc. A low grade product could have a lot of impurities, not always good. I would be interested in 2 kg if decent quality.
Mike
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