| 简介 |
The invention relates the use of a composition with low corrosive effect and low freezing point. The composition is prepared by mixing an ammonium cation source with a carboxyl anion source in an appropriate molar or weight ratio, either without a medium or by using an appropriate medium for obtaining liquid or water-soluble organic ammonium carboxylate of formula (1) : [NR1R2R3R4]+n [R5(COO)n]-n, (1), in which R1, R2, and R3 are selected from the group comprising hydrogen, substituted and unsubstituted alkyls containing 1-6 carbon atoms, R4 is a substituted or unsubstituted alkyl containing 1-6 carbon atoms, R5 is hydrogen, a substituted or unsubstituted hydrocarbon containing 1-6 carbon atoms and n is an integral 1-6 and thereafter adding possible solvent and at the same time keeping alkali or alkali-earth metal content of the composition in a range of 0.001-30 wt-%, preferably in a range of 0.001-30 wt-% and most preferably in a range of 0.001- 1.0 wt-% and halide content in a range of 0.001-1 wt-% most preferably in a range of 0.001-0.1 wt-%. |
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