Reference point
Open a bottle of Javel bleach and smell from a hand’s span away.
Do this before you read on. An entry only works when you have just smelled the thing.
Sharp, cold, and it shoots straight up the nose. No layers, no structure, just one flat, strong sheet.
Many people call this “the smell of clean”, and that is one of the most common misconceptions about smell. This smell is not a sign of cleanliness — it is a sign that a chemical reaction is taking place.
It is also the most dangerous entry in the dictionary if misused.
How to smell it
Smell from at least a hand’s span away, wafting gently. Never mix bleach with any other cleaning product — especially ones containing ammonia or acid.
Why this one is hard
Because the “clean” association is so strong. People smell bleach and conclude the place is clean, although the two are not necessarily related.
Don’t confuse with
This entry
Bleach
Household objects family
Bleach gives chloramines — piercing and wet. Welding gives ozone — sharp and dry. Both are inorganic but quite different.
Scientific note
Bleach is a solution of sodium hypochlorite. What you smell is not the hypochlorite but chloramines and a small amount of chlorine gas formed when it reacts with organic matter. That means the stronger the smell, the more organic matter has just been broken down — the smell is a sign of the reaction, not of the result.
In Vietnamese life
Javel water is the most common bleach in Vietnam, used in homes and restaurants alike. The name comes from Javel, a village on the outskirts of Paris where the compound was first produced in the late eighteenth century.