Eternity. There's essentially no way for it to "go bad" and stop being effective without changing the way colligative properties, a fundamental law of nature, work.
Both table salt and sea salt will keep indefinitely as long as it's kept free of moisture and dirt. Salt is used as a preservative, so it has a very long shelf life too.
Rock salt is used on icy roads because it has larger granules that are more effective at providing traction. Road salt, which is a finer grain, is more commonly used to melt ice and snow on road surfaces. Rock salt is also less expensive and more readily available.
Salt melts ice, sand improves tires grip on the road
No, it is not possible.
good is relative. Salt water is a lot better than water or oil, but is never as good as a metal. Salt water is a good enough to conduct a small current with a battery.
salt + road = road salt... keep it up
Road salt is impure salt directly extracted from mines.
Road salt is used for deicing.
Road salt is used for deicing streets and walkways
Road salt causes corosion of vehicles
Both table salt and sea salt will keep indefinitely as long as it's kept free of moisture and dirt. Salt is used as a preservative, so it has a very long shelf life too.
About 702 road miles.
The salt burns plants that are around the road that was salted.
Road Salt One was created on 2010-05-17.
Road Salt Two was created on 2011-09-26.
The disadvantages of having salt on the road are, the it wrecks the tires, the road's, the drains if there are fish in them. The advantages of having salt on the road it makes the road less slippery so there are less car crashes, and it is cheap.
what is rock salt