https://www.diamondcrystalsalt.com/blog/at-what-temperature-does-salt-melt-ice

Jan 8, 2017 ... Commercially available ice melt materials include salt (sodium ... For instance, magnesium chloride work down to temperatures of -20 to -25 ...

https://www.wisn.com/article/temperatures-too-cold-for-salt-to-melt-ice-snow-1/6313263

Jan 14, 2013 ... The weather is too cold for salt alone to be effective at melting the ice and snow. ... Calcium chloride will do trick ... Dry salt alone will not melt ice and snow. ... The highly concentrated salt and water solution can work when ...

https://www.michigan.gov/mdot/0,4616,7-151-52374-205107--F,00.html

When temperatures fall to 10 to 20 degrees, the action of the salt (which lowers the freezing temperature of water) takes longer to work. Wet pavement refreezes  ...

https://www.clickondetroit.com/weather-center/science/when-does-salt-work-and-when-does-it-not

Jan 13, 2015 ... DETROIT - Fun fact: salt isn't very effective against ice in bitterly cold ... Not only does magnesium chloride work down to temperatures of -20 to ...

https://science.howstuffworks.com/nature/climate-weather/atmospheric/road-salt.htm

Jan 24, 2019 ... Road salt is used to melt ice in the winter. ... goes through a lengthy purification process, while rock salt does not. ... How does road salt work?

https://phys.org/news/2019-02-salt-doesnt-ice-winter-streets.html

Feb 1, 2019 ... This is also why pre-treatment of bridges – which are colder than other roads – does not typically work, and why you see "bridge freezes before ...

https://www.scientificamerican.com/article/salt-doesnt-melt-ice-heres-how-it-makes-winter-streets-safer/

Feb 12, 2019 ... Salt Doesn't Melt Ice—Here's How It Makes Winter Streets Safer ... than other roads—does not typically work, and why you see “bridge freezes ...

http://www.rochdale.gov.uk/parking-roads-and-transport/gritting-and-winter-service/Pages/salt-myths-facts.aspx

Salt lowers the freezing temperature of water, which prevents ice or frost forming ... on top of ice or snow, each grain will begin to melt the surrounding ice working its ... but the water droplets do not freeze themselves, and become supercooled.

https://www.cbc.ca/news/canada/nova-scotia/dalhousie-university-professor-says-it-s-not-too-cold-for-road-salt-1.2960143

Feb 17, 2015 ... She said it's a misconception that salt may not work when it's colder ... the sidewalk absorbs more of the light from the sun than the ice does.

https://www.plowsite.com/threads/at-what-temp-does-salt-stop-melting.112949/

Dec 15, 2010 ... "Sodium chloride melts ice at temperatures down to its eutectic point of ... Not because the rock salt will stop working, but more for the refreeze ...