An environmentally-clean dry chemical powder composition for absorbing flammable hydrocarbon liquid and inhibiting fire ignition and/or extinguishing an active fire involving the absorbed flammable hydrocarbon liquid, said environmentally-clean dry chemical powder composition comprising:
- a major amount of tripotassium citrate (TPC) powder;
- a minor amount of polymer powder for absorbing flammable hydrocarbon liquids;
- a minor amount of powder fluidizing agent powder;
- wherein said tripotassium citrate (TPC) powder is present in a major amount in the range from 65% to 95% by weight;
- wherein said polymer powder is present in a minor amount in the range from 1% to 30% by weight;
- and
- wherein said powder fluidizing agent powder is present in a minor amount in the range from 0.1% to 3% by weight;
- wherein the sum of the % weight of said powder components should not exceed 100% by weight;
- and
- wherein each said powder component is mixed, blended and milled into a said environmentally-clean dry chemical powder composition and packaged into and sealed within a container for storage and shipment to an end-user location, for use in absorbing flammable hydrocarbon liquid and inhibiting fire ignition and/or extinguishing an active fire involving said absorbed flammable hydrocarbon liquid.