2007-02-05 11:31:49 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Weather
Absolutely. I live in a super cold place and salt only works when its just below freezing - it will not work after about 5-10 degrees below.
2007-02-05 11:35:29 · answer #1 · answered by radiancia 6 · 0⤊ 0⤋
Yes, salt won't work for melting snow and ice if it gets really cold, like -40°C (=-40°F)
Salt lowers the melting point, but only so far. But it also weakens and loosens ice even when it is cold, and it improves grip because the salt pieces are sharp.
2007-02-05 11:34:28 · answer #2 · answered by poorcocoboiboi 6 · 0⤊ 0⤋
Yes, once it gets below 23degrees F, salt doesn't work. There are some other substances like calcium chloride (Prestone Driveway Heat). The jug says it works to -25 degrees. Where I live, (just south of Canada line) I stop using all that stuff once it reaches about 20 because it doesn't seem to be as slippery anyway.
2007-02-05 11:40:13 · answer #3 · answered by Ellie S 4 · 0⤊ 0⤋
There is a point where melted ice mixed with salt will freeze, actually the salt will crystalize out and the water will freeze, which appears to be at -21degrees C, based on the article referenced below.
2007-02-05 11:49:18 · answer #4 · answered by rowlfe 7 · 0⤊ 0⤋
Yes, of course. Sodium Chloride will not work in temperatures below zero.
2007-02-05 11:40:00 · answer #5 · answered by ClimateRox 2 · 0⤊ 0⤋
yes
2007-02-05 12:05:21 · answer #6 · answered by Justin 6 · 0⤊ 0⤋
yes it can
2007-02-05 11:42:21 · answer #7 · answered by tazcrty 1 · 0⤊ 0⤋
y
2007-02-05 11:41:04 · answer #8 · answered by Anonymous · 0⤊ 0⤋
YES
2007-02-05 11:35:57 · answer #9 · answered by Robert B 4 · 0⤊ 0⤋