Clariant Corporation

G&ouml;tz Wilbert

Thomas St&auml;hrfeldt

Rainer Fell

The present invention relates to a process for preparing a colour-stable, aqueous dimethylaminoacetonitrile solution from a formaldehyde source, dimethylamine and hydrocyanic acid, wherein the reaction mixture contains 2,4-diamino-6-phenyl-1,3,5-triazine(benzoguanamine) in a concentration of from 0.001 to 5% by weight, based on formaldehyde, prior to the reaction and the starting substances are used stoichiometrically or in a ratio of 0.98-1.02 mol of formaldehyde and 0.95-1.10 mol of dimethylamine per mol of hydrocyanic acid. The resulting product remains colour-stable without a further purification step even after prolonged storage.

Growing community of inventors

Gersthofen, Germany

Götz Wilbert

Growing community of inventors

Gersthofen, Germany

G&ouml;tz Wilbert

Götz Wilbert