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aryl halide's wicked nothingness

@aryl-hydrazine

i eat the agarose gel when the lab instructor isn't looking

Some more Cobalt chemistry, since you all liked the previous pink girlpowder (this time a potassium cobalt sulfate double salt)

Left is plain cobalt sulfate, and to the right is the hydrated form of the potassium cobalt sulfate

Heating it makes it undergo a wonderful colour change to purple!