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Wet Chemical

Features & Benefits

Cannot be used on Class B fires involving flammable liquids such as petrol or diesel.
Only work with animal fats and vegetable oils
Creates a fine mist, which cools the flames and prevents splashing.

Developed specifically for use on deep fat cooking fires, Normal fire extinguishers are worse than useless in a deep fat fire, since they cannot cool the oil and cause hot oil to splash up on contact with the extinguisher’s agent. Fat can burn at 340 degrees, and an average fat fryer holds up to 75 litres of oil. Wet chemical (potassium acetate, potassium carbonate, or potassium citrate) extinguishes the fire by forming an air-excluding soapy foam blanket over the burning oil through the chemical process of saponification (an alkali reacting with a fat to form a soap) and by the water content cooling the oil below its ignition temperature.

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