TY JOUR TI APPLICATION OF MODIFICATIONS HYDROGELS WHEN EXTINGUISHING FIRES AT STORAGE FACILITIES OF MINERAL FERTILIZERS KW hydrogel KW Carbopol KW extinguishing agents KW fertilizers JO NATURAL AND MAN-MADE RISKS (PHYSICO-MATHEMATICAL AND APPLIED ASPECTS) AU Ivakhnyuk, G.K. AU Bondar, A.A. AU Koposov, A.S. PY 2016 IS 2016 PB Saint-Petersburg University of State Fire Service of Emercom of Russia