Your description sounds like engine coolant to me.
The acrid smell of smoke filled the room after the fire.
Acrid
An acrid pall is an unpleasant cloud of smoke or smog that is irritating to breathe or smell. Tear gas qualifies.
if your asking about your air conditioning, it could be your refrigerant, but a smell that would more closely resemble vinegar would probably be your coolant
Burnt powder. It is a distinctive aroma and a bit hard to describe. It is an acrid smell.
sharp or biting to the taste or smell bitterly pungent irritating to the eyes, nose, etc.: acrid smoke from burning rubber.
The word 'acrid' is an adjective. It means something pungent, bitter, irritating to the senses or caustic. Vinegar would be acrid to smell or taste. Likewise strong alcohol or liquor. -I hope that helped.
acrid, putrid, foul, paskudnye
garlic
Bravada smell coolant. That's how they greet each other.
Pungent: sharply affecting the organs of taste or smell, as if by a penetrating power; biting; acrid. example: There was a pungent smell in the locker room after the game.
Osmium itself has no smell. The "smell" (the name "osmium" comes from the Greek for "smell") is from the volatile osmium tetroxide, and while it may be futile to attempt to describe a smell, it's generally said to be an acrid scent similar to that of chlorine.