> Muriatic acid... nasty stuff.
> If you are committed to using this , either find a highly diluted
> version (though vinegar is a  safe, highly dilute acid that is much
> easier to get) or dilute it yourself. The later is not recommended
> unless you have the correct tools.

And I would point out the utmost among the correct tools is a face shield
or at a minimum goggles that wrap around one's eyes.

Regards,
Charlie
.................................................
Research Associate - Section of Mollusks
Carnegie Museum of Natural History
Pittsburgh, PA, USA

Assistant Professor - Family Medicine

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