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.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.cargill.com/at-what-temperature-does-rock-salt-stop-working

Salt will “work,” i.e. it will melt ice, all the way down to its eutectic temperature of - 6 0F. However, the “practical working temperature” of salt is generally ...

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 ... "Salt is a great way to fight snow and ice, but it's not that great, not ... The highly concentrated salt and water solution can work when temperatures go ...

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

Jan 13, 2015 ... Keep in mind that this is for nighttime temperatures; salt is effective at ... You may recall one time last winter when road crews didn't salt for an ...

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

Jan 24, 2019 ... Learn about road salt in this article from HowStuffWorks. ... Ice forms when the temperature of water reaches 32 degrees ... The key is, there has to be at least a tiny bit of water on the road for freezing point depression to work.

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 ... With temperatures consistently below freezing, we're asking an expert: is it really too cold to salt the streets? ... "If it's below about –21 C, then it is too cold for salt to work because .... Pseudonyms will no longer be permitted.

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

Generally, on the roads, salt loses its effectiveness once the temperature falls ... each grain will begin to melt the surrounding ice working its way outwards. ... No longer does salt spray in all directions covering the windscreens of cars and the ...

https://metro.co.uk/2018/02/28/temperature-grit-stop-working-salting-roads-doesnt-always-help-7348977/

Feb 28, 2018 ... Depending on the temperature, though, gritting the roads can fail to ... Once the temperature falls below -5ºC, rock salt can stop serving its ...

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 ...