INTRODUCTION ( cont.) POLYETHOXYLATED TALLOW AMINE (POEA) Non-ionic surfactants Be composed of tallow amine and 2 chains of ethoxylate POEA molecules will be described by the number of carbon atoms in the tallow atom moity and the number of ethyloxylate units 3
INTRODUCTION ( cont.) POLYETHOXYLATED TALLOW AMINE (POEA ) A range of Ka is 6.5 – 7.0 Produced by ethoxylation process Ethoxylation process Tallow amines reacted with ethylene oxides in presence of catalyst in process 4
APPLICATIONS METAL INDUSTRIES Rust preventives agents Corrosion inhibitors Metal lubricants PLASTIC INDUSTRIES Textile auxiliaries dye leveler 6
APPLICATIONS (cont.) AGROCHEMICAL INDUSTRIES Surfactant additives in glyphosate formulations To change various physical properties May be added as wetting agents, emulsifiers, or dispersants Increases the efficacy of glyphosate An excellent performance of emulsification and even dying 7
ENVIRONMENTAL EFFECTS A half-life in soils of less than 7 days Washout from soil is likely to be minimal H alf-life in bodies of water would be about 2 weeks 8
TOXICITY Be harmful if ingested Causes skin irritation Causes eye irritation Be harmful to a variety of aquatic wildlife 9
TOXICITY (cont.) 10
SUMMARY Non-ionic surfactants Used in many glyphosate formulations Be harmful to aquatic wildlife and many mammals Affect to environment Play an important role in many industries especially agriculture industries 11
REFERENCES D. Tush , K.A. Loftin , M.T. Meyer. Characterization of polyoxyethylene tallow amine surfactants in technical mixtures and glyphosate formulations using ultra-high performance liquid chromatography and triple quadrupole mass spectrometry . Chromatrogr . A 1319 (2013) 80-81. OUCC. Oriental Union Chemical Corporation, Product specification,www.oucc.com.tw / eng /p2_SC_a3_m3_d4.asp (Dec 3,2013) U.S . Environmental Protection Agency, Pesticide Registration Manual,www.epa.gov /pesticides/bluebook/chapter1.html (Dec 3, 2013). 12