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RE: Heating Ferric Chloride

Solubility of the hexahydrate complex salt is 92 g / 100 mL water
So, it should dissolve very nicely but perhaps slowly.

Stirring will facilitate the problem far faster than heating... If I were
in your situation, I'd make a saturated stock solution first, and then dilute down from there to make your desired concentation. You can guestimate 100g of FeCl3 by comparing its mass to something in your kitchen that weighs 100g. 100 mL of water is just shy of 1/2 cup.

I'd just use a polyethylene screw cap juice container. Swirl by hand with room temp or slightly warm water to make your concentrated stock solution of approx 1g/mL. It would be safe to reuse the juice container too following thorough flushing with water. FeCl3 is not a metabolic poison, however, FeCl3 concentrated solution will give you a pretty unpleasant skin burn similar to muriatic or battery acid.

Where you DONT want this stuff is in your eyes... You'd get corneal ulceration from it and it would be painful for weeks. Googles!


-- Jim


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