Questions tagged [salt]

Use this tag for questions relating to salts and their properties.

135 questions
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Which "exotic salt" can lower water's freezing point by 70 °C?

The Medium.com article Mars Phoenix Lander, 10 Years Later shows several remarkable images and discoveries on Mars by the Mars Phoenix Lander circa 2008. One image (shown below) shows what looks like droplets of liquid water, condensed on the…
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Are salts (e.g. NaCl) soluble in liquid metals?

I'm curious whether any salt would at all dissolve in a liquid metal, such as gallium, mercury, or some other metal in the liquid phase? A Google search of "solubility of NaCl in Mercury" results in papers on Mercury's solubility in molten salt. I…
Tom P
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How to differentiate between iron and sodium flames?

According to my textbook, when a flame test of an iron salt is performed, it produces an orange, mostly yellow flame. Sodium salts also produce a yellow flame. As the colours of these two flames are too similar, how do I differentiate an iron flame…
8
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The Salt Room, is there salt in the air?

I work in a restaurant where we dry age our uncut steaks in a cooler. Dry aging is a wonderfully complex process that improves the flavor of richly marbled steaks. Our particular type of aging cooler has a wall of himalayan pink salt (NaCl with…
7
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Why does my sea salt have a best by date?

Seems like it should be good for thousands of years, if not millions.
6
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Remove salt from dirt

I have a mixture that contains out of dirt/sand and salt. I want to extract and measure the salt. What would be the best way to extract the salt from this mixture?
bramhaag
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Why is sea salt coarse?

What makes sea salt coarser than other salt? I have tried checking online but no one seems to discuss this. It seems that the grain of sea salt is larger, but I don't understand since the salt is dissolved in the sea water so how does it become…
6
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Why does the specific conductivity against concentration curve for NaCl curve more than KCl?

I understand why KCl has a higher specific conductivity than NaCl.. but I dont understand why the curvature is more significant for NaCl (KCl is a straight line). Ive provided a picture of this here, and this is also what I get from my experiment.…
5
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InChI issue with organic salts, inconsistent approach?

I am wondering why there is the following inconsistency in InChI: penicillin G vs. penicillin G potassium salt uses the /p layer to drop a proton but chloramine-T vs. tosylchloramide drops an H from the formula instead Here is penicillin G vs.…
Gunther Schadow
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Can potassium carbonate be used to calibrate hygrometers?

Context: In the process of trying to calibrate a number of hygrometers, with Sensirion MEMS electronic sensors, I came across the method of using wet salt: an airtight container will stabilize at a predictable relative humidity over time, given a…
5
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What is happening when KCl burns in a bunsen flame?

I did the experiment to qualitatively observe the different colours given off by different salts when placed in a flame. But what is actually happening to the salt ? Take $\ce {KCl}$ for example. Does the $\ce{ KCl}$ react with $\ce {O2}$ ? What…
Kantura
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What acids, solvents is lithium-6 fluoride soluble in (other than HF)?

$\ce{LiF}$ is quite insoluble in water, and I'm trying to use some water-soluble acid or solvent to dissolve $\ce{^6LiF}$ (95% enriched) in. I'm not a chemistry person, I'm a radiation detection person, and I have very little idea of chemistry.…
user95948
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How can I transform Thiamine sulfate to Thiamine hydrochloride?

I have got thiamine sulfate and want to have thiamine hydro chloride. Can I obtain it by dissolving thiamine sulfate in water and adding calcium chloride water solution as long as calcium sulfate will percipitate out. After it filter the solution…
Benzen11
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Why is there a difference in crystal shapes of sodium chloride (NaCl) and potassium chloride (KCl)?

According to Sodium chloride and Potassium chloride: Sodium chloride (NaCl) crystallizes, among various other shapes, into octahedron and tetragonal pyramid shapes which are absent in potassium chloride (KCl). I am a quite confused about this…
Vishal
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What is the origin of the word salt as used in chemistry?

I have done a number of searches to determine why compounds of acids and bases are known as salts but came up empty. The fact that common salt dominates the word's usage means all my searches bring up the history of sodium chloride. Is there a known…
KalenGi
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