Which salt melts ice fastest?

Question

4). Determine which salt (sodium, aluminum, or calcium chloride)you should use to melt the ice most effectively. Explain your answer and write pertinent equations.

any websites suggestions? please?

it's either SODIUM, ALUMINUM, OR CALCIUM CHLORIDE...If the answer is Calcium Chloride, what is its pertinent equations and why is it the answer?

Answer 1

You forgot magnesium chloride.

Halite (rock salt) is the most common ice melting salt. Halite is mined throughout the world. The primary chemical in rock salt is NaCl, which causes damage to vegetation in concentrated form


Calcium chloride (CaCl2) and magnesium chloride (MgCl2) . Both chlorides release heat (exothermic) as they dissolve, which helps it melt ice at very low temperatures.

Salt is the most effective, readily available, and economical highway deicer in use today. It assures winter driving safety and continued mobility in snowbelt states, even under the most adverse snow and icing conditions. Rock salt and solar salt are used on U.S. highways. In Europe, because of its availability, evaporated salt is sometimes used. The lowest temperature at which sodium chloride will melt ice (the eutectic point) is -21.12� C (-6.02� F), at a concentration of 23.3% NaCl. Salt works best at temperatures near 0� C (32� F) because melting occurs quickly with a relatively small amount of salt. As the temperature falls, it takes more salt and more time to melt ice because a higher concentration of brine is required. Fortunately, most snowstorms occur when the temperature is near freezing, where salt is very effective. More than 40% of the dry salt produced in the United States is used for highway deicing.

Both magnesium chloride and calcium chloride can leave a slippery residue that is difficult to clean. Both tend to refreeze quickly and may require frequent reapplication. In addition, both are hygroscopic, which can cause them to clump, harden or even liquefy during storageThose three common ice melting ingredients can chemically attack concrete: ammonium sulfate, magnesium chloride and calcium chloride.

Ethylene glycol is a liquid deicer. It is commonly mixed with liquid urea and applied using bulk sprayers and tanker trucks applied primarily at airports. It is non-corrosive but poses environmental hazards, especially to grass, animals and to our water supply.

Potassium acetate is a biodegradable liquid deicer. It is also primarily used for airports. Because potassium acetate is corrosive it is often mixed with a corrosion inhibitor.

Calcium magnesium acetate (CMA) was developed as an environmentally responsible alternative to road salt. It is the safest of all ice melting chemicals in regards to vegetation, concrete, water sources, and the applicator. CMA is non-corrosive, biodegradable and can effectively prevent the formation of ice-surface bonds when applied prior to precipitation. Research even suggests that CMA's coating action reduces the risk of moisture penetration and surface damage. CMA is more than 30 times the cost of rock salt. The high cost has limited its practical use. CMA is not effective at very low temperatures. Pure CMA is applied in critical areas where corrosion, vegetation, or water contamination is a primary concern. When blended with other ingredients, CMA can significantly reduce

Answer 2

Salt.

Answer 3

we should use a salt that can increase d melting point.and dis is experimental 2 find it

Answer 4

It's depends on where do you want to melt them in the Arctic??or in the tropics?

Answer 5

how many kinds of salt r there?
and which do u think

Answer 6

calcium chloride

Answer 7

sodium chloride.
we always use NaCl more than the other