STORAGE OF MURIATIC ACID

If you plan to use Muriatic acid for cleaning corroded parts, make sure that when storing, you cap it tightly & store it away from anything metal that you care about. The vapor pressure of this liquid is such that it will release acid to the atmosphere easily. It will then act as a catalyst, speeding the rusting of any unpainted iron or steel in the area. Such items as drill chucks and bits, garden tools, stored fasteners, & hand tool all soon grow a fuzzy coating of ugly  red ferrous oxide.
 

Restoration Tips by Tom Reese.
This article was originally published in the Antique Automobile  from 1971-1985.