... '-ethyl-1,3,5-triazine-2,4-diamine PHYSICAL CHEMISTRYComposition: Tech. is 97 % pure.Mol. wt.: 229.7; M.f.: ... (pH 7, 20C). In acetone 41, ethanol 14, n-octanol 12, n-hexane 0.36 (all in g/l, 25C).Stability ... or alkaline media; DT50 (20C) (calc.) 8 d (pH 1), 12 d (pH 13). In natural sunlight, DT50 >40 dpKa: 2 ... cleavage. DT50 30-60 d in biologically active soil. Terbuthylazine (Tech.97 % pure) herbicide