Questions tagged [mercury]

For questions pertaining to the unique physical, nuclear, and chemical properties of mercury.

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Salt extraction from water without affecting mercury concentration

I am looking to theoretically bio-analyze a water sample regarding its mercury concentration from both sea and lake water using a biosensor with an enzyme biorecognition element. However, a big issue ...
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Small mercury spill [closed]

few weeks ago a thermometer for home use (temperature measuring) broke under our bed on our wood floor 11/18. We cleaned the spill using paper and safely removed it from the house. We ventilated ...
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1 vote
1 answer
334 views

Why does mercury(II) nitrate form only when using concentrated nitric acid?

In the reaction between mercury and nitric acid, mercury(II) nitrate only forms when concentrated nitric acid is heated up and added to it, if the acid is dilute, mercury(I) nitrate forms. I ...
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On basic mercury salts

$\ce{HgCO3.3HgO}$ and $\ce{HgO.Hg(NH2)Cl}$ are called basic mercury carbonate and basic mercury amidochloride, respectively. I found this thread on the former; I've only seen the latter as the product ...
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Toxicity of Mercury (II) Iodide and dicopper (I) tetraiodomercurate (II)

This is a continuation from my previous post. Could you please give me some info on the toxicity of compounds $\ce{HgI2}$ and $\ce{Cu2[HgI4]}$? I found on sigmaaldrich.com that these are very ...
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2 votes
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Chemical properties of dicopper (I) tetraiodomercurate (II)

This is a continuation from my previous post. Where can I find information on the chemical properties of $\ce{Cu2[HgI4]}$? I found a mention that in reaction with $\ce{Na2S2O3}$ in presence of acid ...
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How to use Sodium Thiosulfate for fixing dicopper (I) tetraiodomercurate (II)?

DISCLAIMER DO NOT TRY TO DEMERCURATE USING DESCRIBED PROCEDURE. CONSULT YOUR EMERGENCY SERVICE. I found a discrepancy between a government-approved procedure of living quarters demercuration and the ...
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-1 votes
1 answer
188 views

Cinnabar decomposition by heating optional method?

Is it possible to decompose cinnabar into $\ce{Hg}$ and $\ce{S}$ instead of $\ce{Hg + SO2}$ with roasting and heating. What conditions need to be satisfied in the new method?
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Does cinnabar react with iodine?

Does cinnabar react with bromine and iodine to form elemental sulphur? This reaction was described in "Explorations in the history of science and technology in China" but I have doubts...
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Confusion in barometer experiment

Now at A, there is pressure by mercury column which is nothing but it's weight. Then, at C there is pressure which is atmospheric pressure. Also, the density at A is more than at C. What they say ...
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1 answer
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Amalgamation involving an alloy [closed]

Just curious, would mercury form an amalgam with gold that is already part of an alloy, i.e a gold platinum alloy?
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8 votes
4 answers
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Is it safe to look at a mercury gas discharge tube? [closed]

As part of a chemistry course, I recently observed a demonstration in which the instructor electrified a mercury gas discharge tube (the tube looked something like this image). The glow from the tube ...
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Does mercury react with polycarbonate?

Looking around at various material compatibility charts, they seem quite divided on the compatibility of metallic mercury and polycarbonate. Some sources (here, here, or here) indicate that ...
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Mercury thiocyanate synthesis

My friend and I are trying to synthesize mercury thiocyanate, however the only reagents we have access to are mercuric acetate and ammonium thiocyanate. We figured that we could possibly force a ...
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3 votes
2 answers
352 views

Why does an mercury ore exist as HgS?

Cinnabar($\ce{HgS}$) is one of the most common ores of mercury. Why does it not exist at $\ce{HgO}$ or some other such compound? Is there any reason for why it is so prevalent? Does it react less ...
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What is the inter-particle bonding in elemental mercury? [duplicate]

In most pure metals, there is metallic bonding where there exist positive monoatomic ions and a sea of electrons. Is this the same with mercury? If not, then in elemental (liquid) mercury, what kind ...
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12 votes
3 answers
2k views

Can electrodes be made from mercury?

'Mercury' was included in one of the possible answers for this exam question: Name a metal that an inert electrode could be made from. My answer was 'platinum' which was also a possible answer, but ...
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Why are chelating ligands often used to treat poisoning by heavy metals (e.g. mercury, lead)?

Why are chelating ligands such as EDTA often used to treat poisoning by heavy metals (e.g., mercury, lead)? I have a vibe that it has something to do with the lone pairs of electrons that are able to ...
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How much time liquid mercury takes to evaporate?

I asked before about a thermometer that I broke yesterday. To summarize, I broke a mercury thermometer in my bedroom, which is a place where is difficult to have sure that I get rid of all mercury, ...
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2 votes
2 answers
835 views

How to switch Mercury-vapor lamp between UVA and UVC bands? [closed]

I have Mercury-vapor lamp emitting UV light. I am looking for the nice solution to cut off spectral lines for UVA or UVC, to make it one day to generate ozone and another day to use it for ...
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1 answer
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Why is gas pressure measured in mmHg?

Pressure can be measured in $\pu{mmHg}$ which is equal to the pressure exerted by a “column of mercury” of a height expressed in $\pu{mm},$ at $\pu{0 °C}$ under Earth’s normal gravity. Does the ...
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1 answer
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Cadmium Selenide, Cadmium Sulfide, Cinnabar and Lead Oxide toxicity

I have a question about the toxicity of the pigments Cadmium Selenide (Cadmium Red), Cadmium Sulfide (Cadmium Yellow), Mercury Sulfide (Cinnabar or Vermillion) and Lead Oxide (Lead White). Not long ...
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Mercury bulb on spirit thermometer?

I recently broke a Quickfit distillation thermometer and the bulb had liquid metal in it. I assumed it's mercury and acted accordingly. However, the column looks like spirit filled (blue liquid). Has ...
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1 vote
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How is mercury in drinking water detected? [closed]

A document I've been reading states that: Both the Maximum Contaminant Level Goal and the Maximum Contaminant Level were set at 2 parts per billion because current technology allows public water ...
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5 votes
3 answers
354 views

How diphenylcarbazide is used to detect Mercury II ions?

Diphenylcarbazide is used in test strips for heavy metals detection in drinking water but I can't find much info on this reagent, apart from it's MSDS and a preparation for detecting Chromium VI ions, ...
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Accidental Dimethyl Mercury?

Need some help from chemists. All questions are hypothetical situations, I am not trying to synthesize this chemical. I am trying to understand its formation and reactions, And if certain chemical ...
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3 votes
1 answer
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How does liquid mercury conduct electricity? [closed]

It is stated that mercury is a liquid at STP because the high relativistic mass of its valence electrons stabilizes their orbits and thus prevents the electrons from being shared. If so, liquid ...
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3 answers
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Obtaining mercury from mercury(II) nitrate

I was thinking about obtaining mercury from mercury(II) nitrate. Is it possible? I've tried putting chunks of Fe into it, I've got the logic from the voltaic table (where Fe is on the left side of Hg, ...
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2 votes
1 answer
924 views

Magnetic mercury

Well, since I'm not sure, quite simply: Is there a possible way (apart from running a current through in the presence of a perpendicular $\mathbf{B}$ field) to make a small mixture of mercury magnetic ...
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-6 votes
1 answer
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How was this fake red mercury video made? [closed]

I Found on web video make me wondering what the hack is this , how its even possible ,so any one know what is happen can explain to me please youtube video B_olJLjgcHc
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11 votes
2 answers
2k views

What purpose does mercury dichloride have in fireworks?

My local newspaper ran an article covering the local rules about fireworks. One of those rules specifically calls out "snakes and fountains containing mercury bichloride" as forbidden. Neither ...
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3 answers
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Is there a method to separate iron from mercury?

The mercury is contaminated with iron. Is there any way to remove iron from mercury?
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2 answers
1k views

What happens when mixing elemental mercury with sodium hypochlorite solution [closed]

Say you spilled elemental mercury from a thermometer and used household bleach on it, what would be the reaction if any?
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2 votes
0 answers
515 views

What makes dimethylmercury ((CH3)2Hg) so penetrative through latex and human skin?

I've read the story of Karen Wetterhahn and how she was poisoned and died from two drops of dimethylmercury that accidentally fell on her latex glove, and I was wondering what is the chemical ...
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3 votes
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Has Crabtree's photochemically-activated mercury-catalysed hydrocarbon activation process ever been used commercially?

In the 1980s, while searching for new hydrocarbon activation catalysts, Crabtree's research group accidentally found that mercury vapour activated photochemically could perform some interesting and ...
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