
1) Fire suppression agent
Found on
https://www.crosswordclues.com/clue/tetrako

TetraKO is a fire suppression agent marketed by EarthClean Corporation, based in South St. Paul, Minnesota. It consists of a white powder, which is intended to be mixed with water and sprayed on structures or foliage using unmodified firefighting equipment, up to a day in advance of a wildfire. ==Mechanism of action== TetraKO forms an aqueous gel ...
Found on
http://en.wikipedia.org/wiki/TetraKO
No exact match found.