| 摘要 |
PURPOSE:To reduce the material cost by adding N,N-dimethylmorpholinium chloride (bromide) and N,N-dimethylpyrrolidinuim chloride (bromide) as a complexing agent by specifying the adding density. CONSTITUTION:As the bromine complexing agent in the main component ZnBr2 + brimine complexing agent + NH4Cl, N,N-dimethylmorpholinium blomide (chloride) and N,N-dimethylpyrrolidinium bromide (chloride) shown in the formula I are used, and the adding density is made 0.5 to 1.0 mol/l. The X<-> shown in the formula I is Br<-> or Cl<->. Consequently, the specific property is maintained as a complexing agent, and the cost is also reduced. |
