When you add a salt to ice with water, the salt lowers the freezing point ... For a solution of table salt (sodium chloride, NaCl) in water, this temperature is -21°C (- 6°F) under ... (-20°F), Melts ice faster than sodium chloride, Attracts moisture, surfaces slippery below -18°C (0°F) ... Sodium chloride (rock salt, halite), NaCl, -9 °C ...

Answer. No, because rock salt and table salt are both Sodium Chloride NaCl. Both of these forms of salt cause the melting point of water to decrease equally, ...

Table salt is more finely ground than rock salt. The finer something is, the more surface area it has. As a consequence, table salt will melt ice faster than rock salt ...