Agrochemical compositions
Homogeneous stable liquid agrochemical concentrate formulations which form stable dilutions with water comprises biologically efficacious oil, water, agrochemical dissolved in the water to form concentrated aqueous electrolyte, a stabilizing surfactant, based on non-ionic or non-ionic and anionic or amphoteric surfactant, comprising oil compatible, electrolyte tolerant surfactant and water soluble, electrolyte tolerant surfactant and optionally a polyol component, are useful as tank mix adjuvants. The formulations combine biologically efficacious oil, e.g. crop oil, with an electrolyte agrochemical, particularly water soluble non-selective herbicide such as glyphosate, or electrolyte nutrients particularly water soluble inorganic fertilizers providing nutrients such as nitrogen, phosphorus, potassium or sulphur.
1. A stable, homogeneous liquid agrochemical concentrate, comprising:
a) 1 to 50 wt. % of at least one biologically efficacious oil, comprising mineral oil, optionally hydrogenated vegetable oil, or ester oil;
b) 20 to 60 wt. % water;
c) 5 to 50 wt. % of at least one electrolyte agrochemical dissolved in the water to form concentrated aqueous electrolyte;
d) 1 to 25 wt. % of a stabilizing surfactant composition based on a non-ionic surfactant, a non-ionic surfactant and an anionic surfactant, or an amphoteric surfactant, comprising:
i) at least one oil compatible, electrolyte tolerant surfactant, comprising a sorbitan ester, a glycerol partial ester, a polyglycerol partial ester, a propylene glycol fatty acid monoester, an alkoxylated alkylamine surfactant, an alkanolamide surfactant, an alkylbenzene sulphonate, alkylether sulphate, an acylsarcosine, or a fatty acid; and
ii) at least one water soluble, electrolyte tolerant surfactant, comprising a saccharide fatty acid ester, a hydrocarbyl polysaccharide, a fatty amine alkoxylate, an alkyl ether phosphate, a neutralized alkyl ether phosphate, an acylsarcosinate, an alkyl diphenyl ether sulphonate, a dicarboxy alkylsulfosuccinamate, or an alkyliminopropionate or amphopropionate amphoteric; and
e) 1 to 40 wt. % of at least one polyol component, comprising glycols, monosaccharides, oligosaccharides, or polysaccharides;
wherein the stable, homogeneous liquid agrochemical concentrate is:
1) capable of forming a stable dilution with water; and
2) free from deliberately added disperse phase components.
2. The agrochemical concentrate of claim 1 , wherein the at least one electrolyte agrochemical is or comprises:
i) at least one plant nutrient material;
ii) at least one pesticide or herbicide; or
iii) at least one plant nutrient material and at least one pesticide or herbicide.
3. The agrochemical concentrate of claim 1 , wherein the at least one oil compatible, electrolyte tolerant surfactant is a non-ionic surfactant or an acid form or partially neutralized anionic surfactant.
4. The agrochemical concentrate of claim 1 , wherein the at least one water soluble, electrolyte tolerant surfactant is a non-ionic surfactant, an anionic surfactant, or an amphoteric surfactant.
5. The agrochemical concentrate of claim 1 , wherein the agrochemical concentrate remains homogenous for at least 24 hours.
6. An agrochemical spray formulation, comprising the agrochemical concentrate of claim 1 diluted with from 1 to 10000 parts water per part agrochemical concentrate.
7. A method of making an agrochemical spray formulation, comprising diluting the agrochemical concentrate of claim 1 with from 10 to 1000 parts water per part agrochemical concentrate.
8. A method of treating, comprising spraying crops, soil adjacent to crop plants, or soil in which crops are to be grown with a spray formulation comprising the agrochemical concentrate of claim 1 that is diluted with from 1 to 10000 parts water per part agrochemical concentrate.