An aminoalkylthiosulfuric acid compound represented by formula (1):
is produced. In step (A1), a hydrochloride of a chloroalkylamine compound represented by formula (2):
is reacted with an alkali metal salt of thiosulfuric acid in the presence of 2 to 6 parts by weight of water with respect to 1 part by weight of the hydrochloride between 50° C. and 100° C. R
1
and R
2
each represents a hydrogen atom and the like, and n represents an integer of 2 to 9. In step (B1), a mixture of a solid containing the aminoalkylthiosulfuric acid compound and a liquid containing an alkali metal chloride is obtained by adjusting the temperature of the mixture of step (A1) to between −15° C. and 50° C. In step (C1), the aminoalkylthiosulfuric acid compound is obtained as solid by separating the solid containing the aminoalkylthiosulfuric acid compound and the liquid containing the alkali metal chloride from the mixture of (B1).
通过公式(1)表示的一种
氨基烷基
硫酸化合物被生产。在步骤(A1)中,在50°C至100°C之间,将通过公式(2)表示的
氯烷基胺化合物的
盐酸与
硫代
硫酸盐的碱
金属盐在1份
盐酸的重量相对于2至6份
水的存在下反应。R1和R2各代表氢原子等,n代表2至9的整数。在步骤(B1)中,通过将步骤(A1)的混合物的温度调整到-15°C至50°C之间,得到含有
氨基烷基
硫酸化合物的固体和含有碱
金属
氯化物的液体的混合物。在步骤(C1)中,通过将含有
氨基烷基
硫酸化合物的固体和含有碱
金属
氯化物的液体从(B1)的混合物中分离出来,得到
氨基烷基
硫酸化合物作为固体。