An environmentally-clean fire inhibiting liquid biochemical composition for spraying on combustible surfaces and forming thin potassium salt crystalline coatings on said combustible surfaces to be protected against fire ignition and flame spread, said environmentally-clean fire inhibiting liquid biochemical composition comprising:
- a major amount of potassium citrate, and
- a minor amount of triethyl citrate (TEC) for adding to and mixing with
- a major quantity of water functioning as a solvent, carrier and dispersant so as to make up a predetermined quantity of environmentally-clean liquid fire inhibiting biochemical composition for spraying on combustible surfaces and forming thin potassium salt crystalline coatings thereon that proactively protect said combustible property against fire ignition and flame spread.