With another harsh winter looking a distinct possibility, it might just be worth stocking up early on ice prevention treatments, in time for the biting winds and deluge of snow that’s predicted for large parts of the UK over the coming weeks.
The simplest and most cost effective of these treatments is
white salt for spreading on paths, driveways, car parks, and generally around both the home and the office. Fascinating though the chemistry is, the fundamental point about white salt is that it lowers the freezing/melting temperature of water. A 10-percent salt solution freezes at 20 F (-6 C), while a 20-percent solution freezes at 2 F (-16 C). If you’re in to your scientific observations, you can watch the process happen, as white salt melts the snow and ice immediately around it, and then the melting spreads out from that point.
For best effect, clear away as much snow as possible before applying
white salt, as any effect will be diminished if the white salt becomes too diluted.
When applying white salt it is always necessary to wear gloves, as it can cause rashes and burn the skin. For small areas, spreading with a trowel or small shovel is best, though for large areas a dedicated
white salt spreader is recommended. As always, care should be taken to clean off the excess salt from your spreader or trowel after application, and any remaining salt should be stored in cool and dry conditions for next time.