Cerrosafe

[Toolmaker51]

Given that Cerrosafe has only 8.5% cadmium in a water insoluble form, settles to the bottom of a water solution, and taking but a rather small sip of the liquid, on a single occasion, the total assumed risk is minimal, IMO

LOL With Murph1090's excess appendages [four arms and four legs] how much worse could his condition be?

Apologies for liberties with your avatar, but the spoon caper set my quiet evening on it's head! Such things trigger me; always have!

I've used various Cerro products over the years. There are many temperature ranges and property combinations available, but Cerrosafe has great qualities. There is information at Specifications
Another good casting media is easily prepared of approximately 60%-40% sulfur and graphite [or fine carbon]. It melts easily, pours into cavities, won't seize on clean surfaces, and not $30 bucks a pound before shipping. For ages, been universal for gunsmith chamber casts; soon after the earliest cartridge arms. The sample will be fragile, but solid enough for accurate measurement.