ARS PESTICIDE PROPERTIES last update May 1995 name:AMETRYN CASRN: 834-12-8 molecular formula: C9H17N5S molecular weight : 227.33 physical state : S (L=liquid; G=gas; S=solid) reference: 9CIBAG _________________________________________________________________________ Key to sources: (M)Manufacturer, (R)eview, (H)andbook, (E)xperiment, (C)alculated, (U)nknown, (P)EPA data, (W)auchope * denotes a selected value where multiple values of a property are listed. _________________________________________________________________________ -value- -medium- -temp- -pH- -source- -reference- Boiling point(deg C): - Melting point(deg C): 84 - 86 H 9PMED8,8TH ED.,p.19,1987 Decomposition point(deg C): - Heat of vaporization(deg C): --RATE CONSTANTS-- Hydrolysis (per day): STABLE* 25 E 9CIBAG Photolysis (per day): 0.0033* WATER** 5-29 7 M 9CIBAG 0.0064 SOIL** 5-29 M 9CIBAG 0.57 WATER*** 25 7 M 9CIBAG 0.0217 SOIL*** 25 M 9CIBAG Vapor pressure (mPa): 2.53E-2 10 H 9HERBH 4.39E-1 30 H 9HERBH 5.19 50 H 9HERBH 0.364 25 M 9CIBAG Water solubility (ppm): -temp- -source- -reference- 185 20 H 9ACHB2,2ND ED.,1987 200* 22 E 9CIBAG 194 20-25 R ADCSAJ, 111:73,1972 Organic solubility (ppm): 6.0E+5* DICHLOROMETHANE 20 H 9ACHB2,2ND ED.,1987 5.0E+5* ACETONE 20 H 9ACHB2,2ND ED.,1987 4.5E+5* METHANOL 20 H 9ACHB2,2ND ED.,1987 4.0E+5* TOLUENE 20 H 9ACHB2,2ND ED.,1987 1.4E+4* HEXANE 20 H 9ACHB2,2ND ED.,1987 2.0E+5* N-OCTANOL 20 H 9PMED8,8TH ED.,p.19,1987 Henrys law (Pa m3/mol): 4.14E-4* 25 M 9CIBAG Octanol/water partitioning (log Kow): 2.63* 25 M 9CIBAG Acid dissociation (pKa): 4.1* H 9PMED8,8TH ED.,p.19,1987 Soil sorption: soiltype temp. Kd Koc %om pH source reference 389 R 9EINSP, p.37,1980 388 R 9EINSP PP.23-67 380 R 9HFEDP 232 C 8CREAM 389 E JPFCD2 22:55-69,1987 CLAY 26.2 927 M 9CIBAG LOAM 1.2 257 M 9CIBAG SANDY LOAM 1.1 96 M 9CIBAG SAND 1.1 205 M 9CIBAG 316* Field Dissipation halflife(days): value test area pH %OM source reference 73(11-194)* M 9CIBAG 62 LA M 9CIBAG 216 NB M 9CIBAG 101 NY M 9CIBAG 53 NY M 9CIBAG 48 IL M 9CIBAG 88 HI M 9CIBAG Halflife in soil: Soiltype aerobic anaerobic source reference SANDY LOAM 37* STABLE M 9CIBAG Comments: PHOTOLYSIS: ** NATURAL LIGHT; *** ARTIFICIAL LIGHT