excellent picture.

yes, the more chemicals are handled and processed the they can loose potency and gain contaminants.

THAT is available nowhere to the public but me. they will last a mighty long time.

they dissolve readily in water but getting saturation in the solution can take days for those last few crystals to vanish into the deep.

thanks for the pic.

Majority finally dissolved and I threw in 15g of elemental for a 3% SSKI solution. It is a lot darker than I expected.