ARS PESTICIDE PROPERTIES DATABASE last updated May 1995 name: NAPHTHALENE CASRN: 91-20-3 molecular formula: C10H8 molecular weight: 129.2 physical state: S (L=liquid; G=gas; S=solid) reference: 9PMED9 __________________________________________________________________________ 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): 218 H 9PMED8 Melting point (deg C): 80 H 9PMED8 Decomposition point (deg C): Heat of vaporization (deg C): --RATE CONSTANTS-- Hydrolysis (per day): Photolysis (per day): Vapor pressure (mPa): 6500 20 H 9PMED9 9310 P 6USEPA 10640* E WEESA6 31: 744-751 (1983) Water solubility (ppm): 30 RT H 9PMED9 H 9FACHB 1992 E WEESA6 31: 744-751 (1983) Organic solubility (ppm): 2.85E5 BENZENE,TOLUENE RT H 9PMED9 5.00E5 CCL4,CHLOROFORM RT H 9PMED9 7.7E4 ETHANOL,METHANOL RT H 9PMED9 Henrys law (Pa m3/mol): 45.8 RT H 9PMED9 Octanol/water partitioning (log Kow): Acid dissociation (pKa): Soil sorption: soiltype temp. Kd Koc %om pH reference -------- ----- -- --- --- -- --------- 1300 ESTHAG 14: 553-556 (1980) 6ECBEN 4: 26-38 (1980) 414 JAFCAU 29: 1050-1059 (1981) 1060 6USEPA JAFCAU 29: 1050-1059 (1981) 933 6GERST 1288 ESTHAG 15: 1360-1367 (1981) 870 CMSHAF 10: 833-846 (1981) 1521 8BULEV 28: 162-165 (1982) 1300 8BULEV 28: 162-165 (1982) 500 WEESA6 31: 744-751 (1983) 638 WEESA6 31: 744-751 (1983) 603 WEESA6 31: 744-751 (1983) 483 WEESA6 31: 744-751 (1983) 900* Field dissipation halflife(days): value test area pH source reference ----- --------- -- ------ --------- 14-48 R ARSPPD 30* W Halflife in soil: soiltype aerobic anaerobic source reference -------- ------- --------- ------ --------- Comments: