Reference

Effect of ammonium sulfate and surfactants on activity of the herbicide sethoxydim

Effect of ammonium sulfate and surfactants on activity of the herbicide sethoxydim. Chow, Paul N. P.; MacGregor, Alex W. (Res. Stn., Agric. Canada, Brandon R7A 5Z7, Can.). Nippon Noyaku Gakkaishi, 8(4), 519-27 (English) 1983. CODEN: NNGADV. ISSN: 0385-1559. DOCUMENT TYPE: Journal CA Section: 5 (Agrochemical Bioregulators) Effectiveness of sethoxydim (I) [74051-80-2] sprayed at 0.1 kg/200 L/ha to wild oat seedlings was enhanced by the addn. of a surfactant and/or (NH4)2SO4 both at 0.05% to the spray soln., addn. of both was more effective than that of either one. Of several surfactants tested, Renex-36 [24938-91-8] was the most effective. No other sulfate or NH4 salt was more effective than (NH4)2SO4. At 0.5-2.5%, (NH4)2SO4 reduced the effectiveness of I. In the absence of any surfactant, I was less effective at pH 6 and 8 than at pH 4, but I was equally effective at pH 4-8 in the presence of a surfactant. Enhancement of I effectiveness by a surfactant with or without (NH4)2SO4 was related to the enhanced cell solute cond. in treated leaves. Deposition of epicuticular wax on wild oat leaves was altered, when a surfactant and/or (NH4)2SO4 was applied with I.

Composition for altering the water function characteristics of mineral slurries

Composition for altering the water function characteristics of mineral slurries. Roe, William J. (Nalco Chemical Co. , USA). U.S. US 4410431 A 18 Oct 1983, 9 pp. (English). (United States of America). CODEN: USXXAM. CLASS: IC: C09K003-18; B01D043-00; F26B001-00; F26B005-08. NCL: 210728000. APPLICATION: US 82-364463 1 Apr 1982. DOCUMENT TYPE: Patent CA Section: 51 (Fossil Fuels, Derivatives, and Related Products) Section cross-reference(s): 38, 46, 48 A wet particulate mineral mass (e.g., a coal-water slurry) is dewatered by (1) adding a compn. comprising a surfactant (hydrophile-lipophile balance no. of ~6.0-12.0) and a surfactant adsorption-inhibiting amt. of a fatty acid compn. in an amt. 112-80-1 and 60-33-3 are cas registry numbers of chemicals which are used as reagents here. of ~0.1-1.0 lb/ton of particulate mineral matter, and (2) subjecting the slurry to mech. dewatering (i.e., by centrifugation or filtration). Polyethylene glycol monotridecyl ether [24938-91-8] can be used as the surfactant; the fatty acid compn. can be tall-oil fatty acids or a mixt. of oleic acid [112-80-1] and linoleic acid [60-33-3]. The fatty acid-surfactant wt. ratio can range from 1:9 to 2:1. .