We have measured the rates of decomposition in water of 1-N-methylamino-2-methyl-2- nitropropane, 1-N-dimethylamino-2-methyl-2-nitropropane, 1-N-diethylamino-2-methyl-2- nitropropane, 1-N-di-n-propylamino-2-methyl-2-nitropropane, 1-N-diisopropylamino-2- methyl-2-nitropropane, 1-N-diethylamino-2, 2-dinitropropane, 1-N-dimethylamino-2-ethyl-2- nitrobutane, 1-N-diethylamino-2-ethyl-2-nitrobutane, 1-piperidyl-2-methyl-2-nitropropane ...