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Alternative road de-icer passes green test

Tests carried out in Finland have shown that potassium formate can be used instead of common salt (sodium chloride) to de-ice roads in the winter, protecting groundwater from contamination by harmful sodium and chlorine. The tests revealed that potassium formate easily breaks down into harmless components in the soil. The Finnish trials are the first to test the chemical as an alternative to salt for de-icing roads. Though it costs about 15 times more than salt, Finnish environmental authorities are expected to recommend its use in areas with sensitive groundwaters. See press release.

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