Many rare-coin dealers, collectors, and enthusiasts may think the metallic, dusty odor left on their hands after handling old coins comes from the coins themselves. Science, however, points to a different explanation for why hands smell after touching coins and other metal objects. Here is an account of the actual source of that metallic odor and why it is so recognizable.
A Scent From People
When people handle rare coins or other metal objects, the body produces an iron-like smell. The odor is actually human body odor, caused when skin oils break down after contact with certain metals. For instance, when hands touch iron, perspiration on the skin supplies two electrons to the iron atoms. The iron then reacts with skin oils and begins to decompose. That process forms an organic molecule called 1-octen-3-one, which is chiefly responsible for the familiar odor. Formaldehyde and acetone also consist of related compounds, so their strong, distinctive smells are understandable.
Reducing the Odor
At the time of original publication, the article described the following: Dealers and collectors can scarcely avoid handling their collections altogether. Fortunately, a few straightforward practices can reduce the metallic odor that remains after coins are touched. Cotton gloves, for example, can keep hands from developing the smell. Gloves also help the coins by avoiding potentially damaging fingerprints, smudges, and oil residue. Handling coins only by their edges is likewise useful because it limits the amount of surface touching the skin.
When this article was originally published, Atlanta Gold & Coin Buyers stated that its rare-coin experts handled coins carefully to protect clients’ assets. The article reported that the business bought, sold, and appraised gold, silver, and platinum coins, including rare and old pieces. At publication, readers were invited to learn about its fair and generous offers, 24-hour price lock guarantee, and customer service by contact us at 404-236-9744 to schedule an appointment.
