No, because rock salt and table salt are both Sodium Chloride NaCl. Both of these forms of salt cause the melting point of water to decrease equally, so 1 kg of rock salt has exactly the same effect as 1 kg of table salt.
Table salt is faster, because it is much finer (typically less than 0.5mm diameter) so there is greater contact between the ice and the salt.
Rock salt is generally preferred for de-icing because as well as some fine salt, it has particles typically up to 5mm. These larger particles 'burn' through ice down to the tarmac, then melt the ice from the bottom up - so that passing car tyres or pedestrians break the ice into loose slush. Larger particles also provide residual protection against refreeze in the early hours of the morning.
Sea salt comes in a variety of grades (particle sizes), to match anything through from table salt through to rock salt.
Neither melt faster.. However it should be noticed that saline solution (effectively salt water) has a lower freezing tempterature. Both pure water and salinated water can have one of three (or all three) states; SOlid, liquid and/or gaseous.
The correct way to see this question (or the answer) is 'Which would melt first'. Given both start off in a solid state, absolute zero (0 °K or -237.15 °C) and the temperateure is gradually raised, the salinised solution would start melting first. BUT the temperateure that it starts to melt at, varies. e.g. Sea Water is ~23% salt, this normally freezed (And likewise defrosts) at -21°C. Carry on raising the termperature, then the same would happen to the pure water at around 0°C. i say "around" and not exactly as different factors play a role in melting temperates i.e. atmospheric pressure (i.e. height above/below sealevel), impurities.
Table salt would actually melt ice faster than rock salt. The reason for this, is that table salt is much finer.
All are sodium chloride, NaCl; only the granulation has a role.
Well table salt melts it faster but they are about the same
Heat
Table salt melts/freezes at 802 degrees Celsius
Because its melting point is roughly 1400 degrees
Table salt is made up of smaller clumps of particles than rock salt. To dissolve, particles of the salt must come in contact with the solvent particles than rock salt, resulting in faster dissolving. (Copied from the Pure Substance & Mixtures Section of some Nelson Literacy Science Text Book) :)
Yes. Rock salt, which is largely the same as table salt, will dissolve in water.
none
Rock salt, for sure!
Table Salt.
yes
rock salt melts ice faster because every winter my mom puts rock salt on ice and it melts within 2 seconds so i think rock salt melts the fastest
Actually table salt is better for the roads and it melts the ice faster.---------------Chemically this is without any importance; but for roads is used rock salt (impure NaCl) and nobody dispels table salt (as food additive).Also the price difference is enormous.
Weird You Dont Know? Jk.
i think that they will turn in a river
A serous difference doesn't exist.
Rock Salt try it the salt will go straight down
Rock salt because it is a larger, coarser salt than table salt. It is also safer than salt water because it will provide a surface to walk on. Salt water still has the ability to freeze, so it is not a good de-icer.
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salt