help identify please

[lydon]

please help me identify this metal found from a sunken ship. thank you. you can me on facebook if you want to see a video of it in heat and ice test.

 

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[Kray Gelder]

Looks like a zinc anode. These are attached to sea going vessels. Zinc is more attractive for electrolysis in saltwater, and so will erode away first, before the steel or other metal fittings.

 

[lydon]

does zinc anode melts an ice fast in seconds? and has no reaction to 22 karat acid? does it also not heat up after minutes of heat test? thanks sir

 

[Hawks88]

Welcome to tnet from Niagara Falls.

 

[lydon]

thank you sir

 

[flyadive]

Is it hollow? Looks like cast Iron to me.
It’s been machined flat on one side. Looks like part of a drill press jig.

 

[lydon]

actually it was a cube but we cut it into two. we put ice and the uce melts approximately 3 minutes. we used a torch for 5 minutes but you can still put your hand on it immediately. we also used 22 karat gold acid but no reaction.

 

[creskol]

Go to this site and read the information. You might find the answer you are looking for. Good Luck!
http://uhv.cheme.cmu.edu/procedures/machining/ch2.pdf

 

[lydon]

thanks sir

 

[A2coins]

Welcome hope you ID I want to know now!!!!!!

 

[Icewing]

Aluminum is a good conductor of heat and doesn't react to common diluted nitric acid like you use to test silver.