FIELD: processing of woody materials, paper and fabric with fire proofing and biological compounds. SUBSTANCE: compound is prepared on the base of phosphor-containing organic fire-proofing compound. Compound 1 comprises dimethyl phosphite, urea or glycerin and ammonia solved in chemically active acid water. Compound II additionally comprises thickener. Compound III comprises dimethyl phosphite, oxidizer and ammonia solved in chemically active alkali medium. Components are used in predetermined ratio for imparting good fire proofing and biological properties to woody materials. EFFECT: increased efficiency and improved fire and biological protection of woody and like materials. 4 cl, 1 tbl, 3 ex
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