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[hcardona111793]

Hello, 

 

Perhaps anyone here can provide some help on a chemical with specific criteria. 

 

I am looking for a substance that is ferrofluid like in terms of being neutral in simple state, but become magnetized once a magnetic is introduced. 

 

I have looked into Ferrofluids but it has two problems:

 

1. It is not buoyant. The substance I am looking for needs to float atop a water surface.

2. It is too liquid and easily mixes with the water. The substance needs to be more grainy and less soluble with water. 

 

Please let me know if anyone knows of a substance with those qualities. 

 

thanks!

 

-H