Claims
- 1. A liquid concentrate composition comprising on a weight basis 1% to 45% of a herbicidal imidazolinyl benzoic acid ester; 0.2 to 1 molar equivalents of sulfuric acid or p-toluene sulfonic acid; 0.0% to 99% of a C.sub.1 -C.sub.4 alkyl alcohol; 0.0% to 20% of a non-ionic surfactant; and 0% to 99% of a water miscible organic solvent; wherein said herbicidal benzoic acid ester is an isomeric mixture iof 6-(5-isopropyl-5-methyl-4-oxo-2-imidazolin-2-yl)-m-toluic acid, methyl ester and 2-(5-isopropyl-5-methyl-4-oxo-2-imidazolin-2-yl)-p-toluic acid, methyl ester, and said water miscible organic solvent is N-methylpyrrolidone, dimethylsulfoxide, dimethylformamide or a mixture of tetrahydrofurfuryl alcohol, diacetone alcohol or butyrolactone in combination with the C.sub.1 -C.sub.4 alkyl alcohol.
- 2. The composition according to claim 1 wherein the acid is sufuric acid and the solvent is N-methylpyrrolidone.
- 3. The composition according to claim 1 wherein the solvent is a mixture of a C.sub.1 -C.sub.4 alkyl alcohol with tetrahydrofurfuryl alcohol in a weight ratio in the range of 1:1 to 3:2.
- 4. The composition according to claim 3 wherein the C.sub.1 -C.sub.4 alkyl alcohol is methanol.
- 5. The composition according to claim 3 wherein the mole ratio of the sulfuric acid or p-toluene sulfonic acid to herbicidal benzoic acid ester is in the range of 0.5 to 1.0.
Parent Case Info
This application is a continuation of application Ser. No. 829,640, filed Feb. 14, 1986.
Non-Patent Literature Citations (1)
Entry |
Adalla. Chem. Abst. vol. 93, 90069(b), vol. 93 (1980). |
Continuations (1)
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Number |
Date |
Country |
Parent |
829640 |
Feb 1986 |
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