Agricultural compositions comprising pH buffers, pH indicators,

Details Agricultural compositions comprising pH buffers, pH indicators, Agricultural compositions comprising pH buffers, pH indicators,

1993-10-01

1996-05-07

Clardy, S. Mark

Plant protecting and regulating compositions

Plant growth regulating compositions

504250, 504251, 514 84, 514119, 514120, 514132, 514144, 514394, 514425, 514477, 514521, 514564, 514726, 514772, 514784, 514788, A01N 2522

Patent

active

055146392

ABSTRACT:
The invention provides a concentrate for dilution with water in the preparation of an agriculatural composition for application to crops, soil or animals and comprising an agricultural chemical whose agricultural activity varies with the pH of the water; and the invention provides a method of preparing such agricultural composition by mixing the concentrate with water and effecting such pH modification to the composition as is necessary to obtain a pH in the composition at which the agricultural activity of the chemical is acceptable. The concentrate comprises an active ingredient and a pH indicator for colouring the water, and the proportions of pH indicator and active ingredient are selected so that when the concentrate is diluted with water to provide an effective concentration of active ingredient in the water, the pH indicator indicates visually whether or not the pH of the water is suitable for acceptable agricultural activiy of the chemical.

REFERENCES:
patent: 2599697 (1952-06-01), Conklin
patent: 2758115 (1956-08-01), Lorenz
patent: 3244502 (1966-04-01), Woogerd et al.
patent: 3770641 (1973-10-01), Cantor et al.
patent: 4062649 (1977-12-01), Kuderna et al.
patent: 4214888 (1980-07-01), Young
The Agrochemicals Handbook "Azinphos-Methyl", 1983.
Merck Index, p. MISC-104, "Indicators", and entry 5169 Lacmoid, 1983.
Chem. Abst.96:36828x 1982.
Chem. Abst. 98:1682j 1983.
Chem. Abst. 89:141919f 1978.
The Merck Index. Tenth Edition, Monograph Nos. 4060, 4062 and 5975 (1983).

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