CLASSIFICATION OF FOAMING AGENTS FOR EXTINGUISHING OF FIRES OF OIL PRODUCTS TAKING INTO ACCOUNT THE STRUCTURE OF SPREADING COEFFICIENT OF WORKING SOLUTION OVER HYDROCARBON

Classification of foaming agents, intended for extinguishing of fires of oil products, which is based on the structure of spreading coefficient of water foam-forming solution over hydrocarbon surface is presented. Results of experimental studies using various foaming agents with different structure of spreading coefficient are given. It is determined which of homologs of a number of sodium primary alkylsulfates differ in foaming capacity and fire extinguishing efficiency. It is revealed that decrease of interfacial tension value leads to reduction of extinguishing time of a heptane flame.