Dimethylamine hydrochloride is a raw material for organic synthesis, and is also used as a catalyst for acetylation analysis and in the preparation of magnesium reagents and dimethylamine aqueous solutions. Dimethylamine hydrochloride has strong oxidation and corrosion resistance, so it is commonly used as a cleaning flux in Chemicalbook. High activity for use, can reduce surface tension, make the solder and the metal being welded mutually wet, and enhance the soldering ability; Organic analytical reagents are used as catalysts in acetylation analysis, as well as in organic synthesis and the preparation of dimethylamine aqueous solutions.