ARS PESTICIDE PROPERTIES last update May 1995 name:CARBARYL CASRN: 63-25-2 molecular formula: C12H11NO2 molecular weight : 201.23 physical state : S (L=liquid; G=gas; S=solid) reference: 9RHPOU _________________________________________________________________________ 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): 141 - 142 E WATRAG,V.12(8),P.566 Decomposition point(deg C): - Heat of vaporization(deg C): --RATE CONSTANTS-- Hydrolysis (per day): 0.066* 25 7 M 9RHPOU Photolysis (per day): 0.0154* WATER 25 M 9RHPOU Vapor pressure (mPa): 6.7E+2 26 R 9HRLCP 2.0E-1 20 R 9HRLCP .28E+1 20 R ACSMC8, 255:201,1984 1.81E-1 25 E JAFCAU, 29(1):99,1981 0.156* 24 M 9RHPOU Water solubility (ppm) -temp- -source- -reference- 107 E JAFCAU 29:93-99, 1981 100 20 E JPFCD2,VB18(2):224,1983 120 30 H 9ACHB2,2ND ED.,1987 110* 22 M 9RHPOU Organic solubility (ppm): 7.9E+4* METHANOL 23 M 9RHPOU 2.1E+2* HEXANE 23 M 9RHPOU 2.4E+5* METHYLENE CHLORIDE 23 M 9RHPOU 1.0E+5* ISOPROPANOL 25 H 9ACHB2,2ND ED.,1987 1.0E+5* XYLENE 25 M 9RHPOU 4.3E+5* DIMETHYL FORMAMIDE 25 H 9ACHB2,2ND ED.,1987 4.3E+5* DIMETHYL SULPHOXIDE 25 H 9ACHB2,2ND ED.,1987 2.5E+5* ACETONE 25 H 9ACHB2,2ND ED.,1987 2.3E+5* CYCLOHEXANONE 25 H 9ACHB2,2ND ED.,1987 Henrys law (Pa m3/mol): 2.8E-4 25 M 9RHPOU Octanol/water partitioning (log Kow): 2.81 R 9EINSP, p.37,1980 2.32 E CMSHAF, 13(2):275,1984 2.36 E CMSHAF, 13(2):275,1984 3.46 E 9CRFAS, p.3,1980 2.29 20 E JARJA9, 17(3):176,1983 2.31* 20 M 9RHPOU Acid dissociation (pKa): Soil sorption: soiltype temp. Kd Koc %om pH reference SAND 03.89 163 4.1 5.4 9RHPOU 263 ASTTA8,p.53,1981,4TH CONF 355 ASTTA8,p.53,1981 4TH CONF 282 ASTTA8,p.53,1981 4TH CONF 138 JPFCD2,VB22(1):67,1987 229 JEFQAA 16:422-428,1987 230 EESADV 570 EESADV 160 8CREAM 423 ETOCDK 8:339-357,1989 230 JPFCD2 22:55-69,1987 298 8SWAMD 104 8SWAMD 121 8SWAMD 310 8BULEV 24:190-195,1980 SAND 02.45 1054 0.4 7.7 9RHPOU LOAMY SAND 02.93 504 1.0 5.3 9RHPOU SILT LOAM 03.29 157 3.6 6.3 9RHPOU SILT LOAM 04.69 152 5.3 5.0 9RHPOU SANDY CLAY LOAM 00.438 26 2.95 8.1 SSSJD4 288* Field Dissipation halflife(days): value test area pH source reference 14(4-22)* 22 E JEVQAA 16:422-428,1987 7 C 8GLEAM 19 E ETOCDK 8:339-357,1989 12-22 R 9EINSP PP.23-67 4-13 BARE M 9RHPOU 4-13 SOIL M 9RHPOU Halflife in soil: Soiltype aerobic anaerobic source reference SAND <7 M 9RHPOU SAND 27 M 9RHPOU SAND 17* 46 M 9RHPOU Comments: