gives the density ρ of standard mean ocean water (SMOW), free from dissolved salts and gases, at a pressure of 101325 Pa.(I wonder how much SMOW differs from any other water after all these purifications.) As for H218O, Handbook has nothing. Search in Gmelin database gives range of temperatures: from –0.01 to +0.3 °C. Hmm. Let’s just think that heavy water is D2O and heavy snow is D2O snow. According to this 3-year old thread (which has started with somebody asking this very important question: “Would it feel different to ski in snow made with heavy water?”), it may be pricey but at least it won’t melt at +3 °C. In the meantime, this BBC report tells us that
Some councils in England say they are running out of road salt.I need to do some research on road salt next.