| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention relates to tetrahydroxypentaboric acid HB5O6(OH)4 and salts thereof. The chemical compound: , where M is an ammonium ion H4N+. To obtain tetrahydroxypentaboric acid, orthoboric acid is condensed in a medium of molten carbamide. The reaction mass is dissolved in water and exposed to mineral acid. Tetrahydroxypentaboric acid salts are obtained by reacting tetrahydroxypentaboric acid with bases. ^ EFFECT: said compounds can be used as herbicides, fungicides, insecticides, defoliants and plant growth stimulants. ^ 12 cl, 5 tbl, 9 ex |
