inorganic waters do not contain rust
lead_nitrate is not inorganic_compound. uranium_monoxide is not inorganic_compound. rust is not corrosion. rustproofing is not mixture. ag is not inorganic_substance. nh4 is not inorganic_substance. perfume is not organic_matter. limewater is not water. ferrous_sulfate is not inorganic_compound. rust is not oxidation.