Like other simple, aliphatic amines, n-butylamine is a weak base, with a pKa, in its protonated form, of 10.59. ==Uses== This compound is used as an ingredient in the manufacture of pesticides (such as thiocarbazides), pharmaceuticals, and emulsifiers. It is also a precursor for the manufacture of N,N`-dibutylthiourea, a rubber vulcanization acce....