He phenomenon of melting point depression is used in every-day life during the winter whenever roads are salted. ice and salt are mixed together to lower the melting point of water, making roads less slippery until colder temperatures. the precise composition of salt and ice to yield the lowest melting point temperature is with 23 wt% salt. this value is called the blank 1. fill in the blank, read surrounding text. point for a mixture. (be sure to spell your answer correctly.)