COMPOSITION OF AQUEOUS AGRICULTURAL CHEMICAL SUSPENSION Russian patent published in 2008 - IPC A01N43/653 A01N25/04 A01N43/54 

FIELD: agriculture, chemistry.

SUBSTANCE: composition of aqueous agrochemical suspension of insecticides, bactericides, herbicides or plant growth controlling substances contains: (A) agrochemically active ingredient chosen from the group including: 2,6-bis(4,6- dimethoxypyrimidin-2-yloxi)sodium benzoate, 2-chlorine-6-(4,6-dimethoxypyrimidin-2-yltio)sodium benzoate, ammonium sulfamidate, calcium methylsulfanylcarbamate, sodium salt of 4,5-dihydro-3-methoxy-4-methyl-5-oxo-N-[(2-trifluoromethoxy)phenylsulfonyl]-1H-1,2,4-triazole-1-carboxamide, monosodium salt of methyl-2-(4,6-dimethoxypyrimidin-2-ylcarbamoylsulfamoyl)-6-(trifluoromethyl)nicotinate, (4-chlorine-2-methylphenoxy)sodium acetate, bis(8-hydroxyquinolinium)sulfate, (EZ)-(RS)-1-methyl-2-nitro-3-(tetrahydro-3-furylmethyl)guanidine and 2-(4-chlorophenyl)-3-ethyl-2,5-dihydro-5-oxopyridazine-4-potassium carboxylate; (B) at least one type of water-soluble compound chosen from the group including: (B1) inorganic acids chosen from the group consisting of hydrochloric acid, sulfuric acid, phosphoric acid, nitric acid and boric acid; (B2) inorganic acid salts chosen from the group consisting of alkali metals salts such as disodiumhydrophosphate, sodium sulfate, potassium sulfate, sodium nitrate, sodium carbonate, sodium hydrocarbonate, sodium chloride, potassium chloride and sodium borate, alkaline-earth metals salts such as calcium chloride and magnesium chloride and ammonium salts such as ammonium sulfate and ammonium nitrate; (B3) organic acids chosen from the group consisting of acetic acid, citric acid, maleic acid, fumaric acid and tartaric acid; (B4) organic acid salts chosen from the group consisting of alkali metals salts such as sodium acetate, sodium tartrate and sodium citrate, alkaline-earth metals salts and ammonium salts of organic acid and (B5) alkali metals hydroxides such as sodium hydroxide and (C) water. When mixing the components (A) and (B) are taken with the ratio of 5-60 parts by weight and 0.1-10 parts by weight per 100 parts of the total agrochemical composition weight respectively. Water solution is prepared by dissolving in water (B) at least one type of water-soluble compound chosen from the group including: (B1) inorganic acids chosen from the group consisting of hydrochloric acid, sulfuric acid, phosphoric acid, nitric acid and boric acid; (B2) inorganic acid salts chosen from the group consisting of alkali metals salts such as disodiumhydrophosphate, sodium sulfate, potassium sulfate, sodium nitrate, sodium carbonate, sodium hydrocarbonate, sodium chloride, potassium chloride and sodium borate, alkaline-earth metals salts such as calcium chloride and magnesium chloride and ammonium salts such as ammonium sulfate and ammonium nitrate; (B3) organic acids chosen from the group consisting of acetic acid, citric acid, maleic acid, fumaric acid and tartaric acid; (B4) organic acid salts chosen from the group consisting of alkali metals salts such as sodium acetate, sodium tartrate and sodium citrate, alkaline-earth metals salts and ammonium salts of organic acid and (B5) alkali metals hydroxides such as sodium hydroxide and adding to this water solution agrochemically active ingredient (A) chosen from the group including: 2,6-bis(4,6-dimethoxypyrimidin-2-yloxi)sodium benzoate, 2-chlorine-6-(4,6-dimethoxypyrimidin-2-yltio)sodium benzoate, ammonium sulfamidate, calcium methylsulfanylcarbamate, sodium salt of 4,5-dihydro-3-methoxy- 4-methyl-5-oxo-N-[(2-trifluoromethoxy)phenylsulfonyl]-1H-1,2,4-triazole-1-carboxamide, monosodium salt of methyl-2-(4,6-dimethoxypyrimidin-2-ylcarbamoylsulfamoyl)-6-(trifluoromethyl)nicotinate, (4-chlorine-2-methylphenoxy)sodium acetate, bis(8-hydroxyquinolinium)sulfate, (EZ)-(RS)-1-methyl-2-nitro-3-(tetrahydro-3-furylmethyl)guanidine and 2-(4-chlorophenyl)-3-ethyl-2,5-dihydro-5-oxopyridazine-4-potassium carboxylate and dispersing the component (A) in the water solution by shaking the water solution or by grinding the component (A).

EFFECT: invention allows improving the composition stability.

7 cl, 3 tbl, 5 ex