The product of the condensation of asymmetric dimethylhydrazine with c
hloro-derivatives of alkane hydrocarbons was shown to be well compatib
le with mineral oils and to possess high thickening ability. The intro
duction of this product into industrial oil I-20A affords low-componen
t preservative compositions that protect carbon steel from atmospheric
corrosion with an efficiency of up to 96-98%; the volume coefficient
of water solubilization is higher than 0.4.