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Furthermore, it is known that the addition of protic solvents has an advantageous effect on the chemical addition of NH3 to acrylonitrile. The addition of steam to the acrylonitrile-ammonia mixture is described, for example, in Chem. Abstr. Vol. 83, 26,879. Usually however, aqueous ammonia is used at temperatures ranging from 80° to 130° C. At a ratio of ammonia:acrylonitrile:water of from 5 to 15:1:5 to 20 there is obtained 3-aminopropionitrile besides bis(2-cyanoethyl)amine in yields of from 57 to 80% (eg U.S. Pat. No. 3,935,256--62%, DE-A 2,436,651--70%, U.S. Pat. No. 2,448,013--78%, U.S. Pat. No. 2,819,303--59%, Org. Syn. 27, 3 to 5 (1947)--57%).

1. additionFurthermore, it is known that the addition of protic solvents
2. customranging from 80° to 130° C