Ah, that’s intriguing! Based on your description—a bar-shaped object, metallic, solid, with no scent, found by a kitchen sink—it’s very likely you’ve come across a “metal soap” or “odor-removing bar”.
Here’s how it works:
- These bars are usually made of stainless steel.
- They’re marketed as “stainless steel soap”.
- They remove strong food odors from your hands (like garlic, onion, or fish).
- The science isn’t exactly chemical; the metal is thought to bind with sulfur compounds in smelly foods when rubbed under running water, neutralizing odors.
Other details:
- It doesn’t lather or smell like real soap.
- It’s durable and essentially lasts forever.
- You use it exactly like a soap bar—rub your hands with it under cold or warm water for 30–60 seconds.
So, in short, it’s not meant for cleaning your hands of dirt, but for getting rid of lingering odors.
If you want, I can also explain why stainless steel can neutralize odors—it’s a neat chemistry trick!
Do you want me to go into that?